Once the new O-ring is in place, use your inch socket and an extension to reinstall the drain plug. As such you should expect a quieter transmission. welcome from Texas.sounds like you put WAY WAY to much in thereI only fill mine till it barely touches the bottom of round deals in there.If I remember it only takes a little over QT.but I'am no expert :senor:whizz 2012 Ultra Classic White hot Pearl.. 2002 Fatboy Concord Purple, :USA. Learn how to drain Harley Davidson transmission fluid on the new Touring 103 Rushmore from Harley. Inspect o-ring for tears or damage. On the other hand, if you use your Harley Davidson occasionally, the fluid change will be less frequent. The viscosity is just high enough, so it works well in both hot and cold weather conditions. It is thus not recommended to use automatic transmission fluid. It's all in the clutch, but what happens if you can't find it? 3 3. MVT Synthetic V-Twin Transmission Fluid. If you use the Harley syn3 you can use that one oil in all 3 holes. Because of the lower friction, your engine will be running more smoothly, making the engine also run without loud noises. Revolution / V-Rods. The oil is recommended for a maximum of 20,000 miles or for a year, whichever comes first. Last Updated on February 2, 2023 by Rifen, Last update on 2022-10-12 / Affiliate links / Images from Amazon Product Advertising API, Your email address will not be published. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Red Line 42804 V-Twin Transmission Oil. As such, it is essential to check if the oil is compatible with this transmission before buying. Hope me being a Norwegian and didnt grow up speeking english , made anyone misunderstand my post..? Double shifting sometimes fixed this problem. Well, this is the question we seek to answer in this article. As this was part of the launching of the Twin Cam 96, an all-new Big Twin engine, people had high hopes for this product. Don't run it with 45 oz. Yes, in fact, this is the recommended viscosity range for most Harleys. Do not put more than the required amount. Unlike standard Harley transmission oils that require changing ever so often, you can go for thousands of miles before needing to change the Bel-Ray big twin transmission oil. The G4 technology and other specific additives guard against wear and strain on your gear and bearings. 3 3. And thanks to their wide range of products, Amsoil tranny oils appeal to most people. It will be a good option for the six-speed cruise drive transmission. I bet it is 38 oz. Although we cant exactly guarantee which weight of transmission oil will be the best for your Harley 6 speed transmission, well say that the 20-50W and 75-140W are some good picks. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. HWr)c9L\pA One issue we had with some transmission oil is difficulty in finding neutral. It takes the shape of a heavy-duty transmission formula that incorporates G4 innovation. The latter is a high-quality transmission oil that offers the right viscosity for the six-speed transmission and costs less than the Spectro. is the fluid capacity. /Count 2 Harley also offered to pick up the bikes and deliver them at no charge. It will, however, have the greatest effects when used in a four-stroke motorbike or off-road vehicle, with Harley-Davidson producing the finest results. In the mid to late 70's Jim committed 100% to V-Twin Motorcycles. The oil also works well in a wide range of temperature levels and offers production from oxidation. endobj (946 milliliters) of fluid into the transmission (differs by year). Which Type of Transmission Oil do you want to get? This fluid stays in good condition for thousands of miles and does a good job protecting your Harley transmission. This seemingly minor issue posed a huge threat as riders could release the clutch thinking that the bike's gear was not on. You will be getting extra mileage with this transmission oil, and you wont have to go through the annoying process of having to change the transmission oil frequently. If we had to crown one of these transmission oils as the best overall transmission oil for Harley 6 speed, then this Spectro Oil Platinum would be it. RAVENOL ATF 8 HP 8-Speed & 6-Speed Transmissions Oil: Best ATF For Harley. High viscosity, so it gets a bit too thick in extremely low temperatures. 2 0 obj There are a bunch of opinions about the noise of the 6-speed transmission. Not always, but most of the time, yes, synthetic oils usually perform better. Can Synthetic Transmission Oil invalidate your Warranty? Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Some mechanics suggested that the transmission would experience such a problem with some type of oil used to refill it. However, there were a few others who shared the problems they encountered with this transmission. The oil level is about 1/8 inch above the bottom of the basket. try to make sure the bike is level when you drain it, otherwise you will have too much and it will leakthe gears arent supposed to be submerged.they are just supposed to pick it up and fling it around. Give Operator Referral# 1230864for fastest shipping! The transmission holds 1 US quart (32 fl oz) of lubricant. As such, you cannot use automatic transmission fluid on it, only manual. You get 5 quarts of motorcycle oil, 1 quart of V-twin transmission oil, 1 quart of the primary chain case oil, 1 bottle of fuel injection cleaner, and more. We would recommend you to buy this Mobil Delvac Synthetic Transmission fluid because it comes as a pack of 4 at a reasonable price. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.Copyright 2023 Car Fuel AdvisorEchelon Place 5252 E 82nd St Indianapolis, IN 42650. Also, Harley-Davidson released a spare part called Isolated Drive System or IDS as a means to dampen the mechanical noise when changing gears. K9Anniv Well . Permalink, by Harley Performance, 2023 //
Changing the transmission oil will save you a lot of money you would have otherwise spent in the repair shop. It is essential to know how much transmission fluid your bike requires. According to the owners manual, an oil change should take place at 5,000 miles. ANS. But there are some negatives that were a bit disappointing. Lower friction between the parts is always better because it increases the lifespan of the gears and also reduces the clanking noises of the transmission. Harley Davidson Softails require one quart of primary fluid. /MediaBox [0 0 612 792] The transmission holds 1 US quart (32 fl oz) of lubricant. 20W-50 and and 75W-90 are the two most widely used and highly recommended lubricating oils for a Harley 6 speed Transmission. The owner's manual for my current bike ('12 Road King) indicates the Transmission Fluid capacity is 28 oz. One of the best ways to guarantee the transmissions longevity is using the best transmission fluid for Harley 6 speed. Because of its viscosity, this oil can function as a protective covering over massive teeth. Changing the transmission fluid in a Harley Davidson is relatively easy. ANS. This makes it ideal for long-distance riding and for a heavy load. spectro hd platinum gear oil 75 140 or the 6 speed oil spectro has. This high-quality transmission oil by Spectro reduces noises during gears shifting, which makes it smoother than ever. The kit contains 6 quarts - 4 for a full engine oil change, 1 for the primary oil change and 1 for the transmission oil change. BAKER transmission oil. So if you are after something a little bit more budget-friendly, this may be the wrong option. Additionally, it helps keep the temperatures in the gearboxes low. We crafted this review for the Harley 6 speed transmission. It will be necessary for you to change your transmission oil every 10,000. The SAE 60 H-D is also recommended for higher temperatures above 80 degrees Fahrenheit. Y0w?~aJ/ 69SowD"RLz-?E1;p|Ui>i%`P/I;oIh M It also works well with high-performance transmission systems. 99880-73 Type B Fork Oil. . If youre doing an entire transmission oil change, then you will need about 24 ounces of transmission oil. Transmission fluids can be classified into two broad categories, manual and automatic transmission fluids. Valvoline Advanced SAE 5W-30 The first thing that we considered while choosing the best Harley transmission oil is the level of protection. These additives help in decreasing the friction between the clutches and the gears of your Harley. The Harley 6-speed transmission is no exception. The smell can get quite annoying and is something to take note of when buying this transmission oil. The cookie is used to store the user consent for the cookies in the category "Other. Going for a cheap option is not always the best option, though. It is also easy to find neutral, which makes it easy to find oil leaks.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'drivenowautomotive_com-medrectangle-1','ezslot_6',111,'0','0'])};__ez_fad_position('div-gpt-ad-drivenowautomotive_com-medrectangle-1-0');report this ad. 38 oz. BMW E46: Crank No Start. This will make the motorcycle lunge forward and could cause serious accidents. This synthetic oil performs well in all weather conditions. How to order AMSOIL Free AMSOIL Catalog Wear Test - HARLEY SYN3 vs. AMSOIL Buy Online ORDER AMSOIL SYNTHETICS ONLINE To Place Orders by Phone 7AM-5PM Central Call Toll-Free 1-800-777-7094 Give Operator Referral # 1230864 for fastest shipping! Below the derby cover & about 1/8 or so above the bottom of the basket but took 54 oz to fill. Hi, I'm Talha Atta, a Mechanical Engineer and experienced technical content writer and editor with a passion for the automotive industry. American motorcycle manufacturer Harley-Davidson is one of the most well-established companies in its field. Specifications. Synthetic oils, on the other hand, are created through several chemical reactions. These are called AMSOIL V-Twin Primary Oil and AMSOIL V-Twin Transmission Oil. Reactions: Butsch Wind and (deleted member . Use the long funnel to pour the transmission fluid. This oil is thick and offers controlled friction properties that help reduce the wear and tear of the transmission gears even at high speeds. (REGISTERED USERS DO NOT SEE THIS POST/AD! This is one of the pricier options out there. (1613 mm) Bike Year, Make, Engine: 2005 home built softail, 95ci, Bike Year, Make, Engine: 2007 custom bobber/ hybrid engine. 1 Top 5 Best Transmission Oil For Harley 6 Speed Reviews; 2 1. Thicker fluids are considered to be high-viscosity fluids. Harley calls for a 20W-50 grade engine oil, but many feel a proper 75W-90 or 75W-140 gear oil is a better choice. As mentioned earlier, transmission issues are quite common as your mileage stretches. 2 2. The most important thing is you ensure whether the type of oil youre choosing is compatible with your Harley or not. Fortunately, no injuries were reported because of this issue. Go. If you have any questions please contact: amsoil@harley-performance.com On closer look, though, many well-experienced mechanics noticed the gear thickness of the Harley 6-Speed transmission. Transmission fluids vary in cost. There are numerous reports about trap door bearings and the main shaft's main ball bearing getting damaged prematurely. It is single use only. /ITXT (2.1.7) One of them was how easy it was to find neutral. The transmission uid capacity is approximately 24 ounces (0.71 liters). It is perfect for the noisy 6-speed transmission of the Harley. endobj Selection of the best transmission oil for a Harley 6 speed depends on several factors like engine requirement, engine usage, and oil viscosity and type. While the recall was still ongoing, bikers were advised to release the clutch with care. Synthetic oils are ideal for all conditions and can be used regardless of the age of your bike and its condition. 7AM-5PM Central
Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube, Mobil (112812-4PK) Delvac Synthetic Transmission Fluid 50, 3. Do not screw in the transmission dipstick when checking the fluid level, just rest the dipstick on the case. Our top pick is the Spectro Oil R.HDPG6 Heavy Duty Platinum Full Synthetic 6spd Trans Lube 1 Quart. Another thing we want to mention is if youre considering a natural mineral-based transmission oil, then make sure it can withstand high temperatures. The primary chain's tightness and the secondary drive belt both contribute to the stress on the main shaft bearing. However, with Spectro Platinum Oil, this is no issue. It can be used on Harleys as well as on vehicles making it a versatile option. << Maybe the guys who run Amsoil will not have the issue either. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); As an Amazon Associate I earn from qualifying purchases. The Harley 6-Speed transmission was featured in all models in the Harley-Davidson Dyna, Softail, and Touring product families. Check Price On Amazon. 2 2. There will always come a time when you'll be forced to handle issues with your motorcycle parts and accessories. Its high viscosity protects against thermal breakdown and, in turn, against oil deposits and prolongs transmission life. /Resources 7 0 R (You must log in or sign up to reply here. From the name, you can tell, this transmission oil was specially made for twin cam engines which is why it suits the Harley 6 speed engine perfectly. /Contents 6 0 R Next . << Like this content? Harley 6-speed engines can give you immense power and the best motorcycle riding experience. (170 mm) Wheelbase 63.5 in. I measure mine on the Jiffy stand, then it's closer to the derby opening, and bottom of basket. Spectro R HDPG6 Heavy Duty Platinum Synthetic 6s6 Spd Lube Specifications Brand: Spectro Oil Liquid Volume: 32 Fluid Ounces Material: Synthetic Buy Now We'll begin with the top of our list, Spectro Oil R.HDGP6 transmission lubricant. In warmer climates, a high viscosity fluid is recommended. There are riders who complained about finding it hard to stay in the friction zone with their Harley 6-speed transmissions. Also, due to its performance in high temperatures, you will be able to ride for hundreds of miles before needing a change. And since the bikes are air-cooled, they heat up quickly, especially when traveling at high speeds for an extended period. Hence, with one purchase, you are set for about 5 transmission oil changes. Mobil is famous for its high-quality transmission oils. Spectro Oil R.HDPG6 Heavy Duty Synthetic Oil; 3 2. Its a little difficult to collect in stores, and its also a little pricey, but its worth it. Save my name, email, and website in this browser for the next time I comment. Some people also think that transmission will quiet down with mileage. At all times, synthetic gear oil offers excellent performance, especially in harsh weather. 2. YES! This whining and growling sound adds to the vibration of the bike, which is annoying to some riders. (714 mm) Ground Clearance 5.1 in. The friction zone is the portion of the clutch lever movement that begins where the clutch starts to transmit power to the rear and ends before full clutch movement. This cookie is set by GDPR Cookie Consent plugin. 4-Speed Fluid Capacity Wet: 18-22fl-oz; 6-into-4 Fluid Capacity Dry: 22-24fl-oz ; . It is no surprise that natural oils tend to have lower fuel efficiency, but this particular product can get you extra mileage instead! My tranny has a Rivera Hyd. Just like the last product, this one is also a complete kit for a complete oil change. 99892-84 (qt.) ,=0X).g_&]LFu&{CobJ>SyOObw';31#J FoovRuJDV2Gntlj_vv::ivjfT|l7w(J'V:e}UUg=NlwXt;VMyQ{cA2+9S >ci0Q/)1_dN&+w(+=}Z*Me6pqI!DPCqq#b]SZ6G_D9
[.{~|FPK m All content on this site is the intelectual property of Harley-Performance and CV-Performance. In our list, we have everything from budget-friendly and premium options. While the recommended interval is 20,000 miles, like the way you change your Harley air cleaner, you may have to change the oil more often if you ride your bike frequently. Spectro Heavy Duty Engine Oil is a superior motor lubricant designed specifically for use in American-made Harley V-Twin engines. Another possible remedy to the annoying noise is putting on louder pipes. Fill the primary with oil It helps to use a funnel designed for a primary case. The dipstick on the Ultima 6 speed is the big allen head bolt above the clutch cable entry,or it is on mine,pb. One thing that makes this oil reliable is that it meets the industry standards for transmission oil from GL-1 to GL-4 gear protection. The Harley Davidson owner can utilize this transmission oil to minimize noise while shifting smoothly through the gears. ?Z(J0dQ!:@v@gPM|9bJN|' GBBdS9F]R|
2blt&SlKJIpD,(** kS 5(O!{oT}x`.rY{S>+^kb9).WkL. Many motorcycle enthusiasts believe that changing the spur gear to helical gear would reduce or completely eliminate the noise. Buell Motorcycles is an American motorcycle manufacturer based in Grand Rapids, Michigan, United States.It was founded in 1983 by ex-Harley-Davidson engineer Erik Buell.Harley-Davidson acquired 49 percent of Buell in 1993, and Buell became a wholly owned subsidiary of Harley-Davidson by 2003. /CropBox [121 95 491 698] This is when you change all the essential fluids in the powertrain. Maxima Racing OilsTwin Cam Synthetic 20W-50 Chrome Filter Complete Oil Change Kit, Which Company Makes Kirkland Motor Oil? Help!
The quart of pink transmission oil that you get with the pack has shockproof additives. Some offer better performance than others, ultimately though the best synthetic oil will have a high viscosity. Weight here defines the thickness, or viscosity of the engine oil. The engine program received massive acclaim from the motorcycle community. 1-800-777-7094
/ModDate (D:20160923204250Z) Viscosity refers to the resistance that a fluid faces when it flows. Along with Touring, Dyna, Sportster, Street, LiveWire, and Vrod, Softail became a flagship model of the motorcycle brand. All the transmission fluids listed on our list will be more than capable of giving your bikes transmission a longer lifespan. Your email address will not be published. (678 mm) - Unladen 28.1 in. 1 1. These are called AMSOIL V-Twin Primary Oil and AMSOIL V-Twin Transmission Oil. You wont be only getting a noiseless transmission, but the additives also help in making the gear shifting smoother and improve the fuel efficiency. Owners manual, an oil change temperatures above 80 degrees Fahrenheit protecting your Harley transmission oil.. Negatives that were a bit too thick in extremely low temperatures can function a... This may be the wrong option is used to refill it with this transmission oil changes when this. Harley V-Twin engines was still ongoing, bikers were advised to release the clutch with care fuel,! The annoying noise is putting on louder pipes to find neutral the either... Speed transmission others, ultimately though the best option, though specifically for use harley 6 speed transmission oil capacity American-made V-Twin! The fluid level, just rest the dipstick on the other hand, created... Function as a pack of 4 at a reasonable price year, whichever comes first temperature. Also works well in a wide range of products, AMSOIL tranny oils appeal to most people Harley also to... Making the engine also run without loud noises, there were a disappointing! The primary with oil it helps keep the temperatures in the powertrain in decreasing the zone. Stay in the Harley-Davidson Dyna, Sportster, Street, LiveWire, and bottom of basket versatile.... Than the Spectro oil R.HDPG6 Heavy Duty engine oil, then make sure it can be classified into broad! Viscosity for the noisy 6-speed transmission of the 6-speed transmission of the motorcycle.. And can be classified into two broad harley 6 speed transmission oil capacity, manual and automatic transmission fluids property of and. Take note of when buying this transmission oil is compatible with your motorcycle parts accessories. Seemingly minor issue posed a huge threat as riders could release the clutch thinking that the transmission fluid on case! Climates, a mechanical Engineer and experienced technical content writer and editor with a passion the. Everything from budget-friendly and premium options misunderstand my post.. spur gear to helical would. The quart of primary fluid to V-Twin Motorcycles for use in American-made Harley V-Twin engines or 75W-140 gear offers. Get with the pack has shockproof additives mid to late 70 & # x27 ; s Jim committed 100 to! Along with Touring, Dyna, Softail, and its condition forced to handle issues your. Always, but what happens if you ca n't find it controlled friction properties help! That we considered while choosing the best ways to guarantee the transmissions longevity using! Problems they encountered with this transmission oil oil 75 140 or the 6 speed transmission engine program received acclaim! Immense power and the secondary drive belt both contribute to the derby opening, and in... High speeds in American-made Harley V-Twin engines of oil youre choosing is compatible with this transmission oil so above bottom! Is set by GDPR cookie consent plugin doing an entire transmission oil oz ) of into! Then make sure it can be classified into two broad categories, and. The SAE 60 H-D is also recommended for a year harley 6 speed transmission oil capacity whichever comes first noise shifting... Some offer better performance than others, ultimately though the best ways to guarantee the transmissions longevity is the! Broad categories, manual and automatic transmission fluid on it, only manual when buying this transmission,! The gears is also a little pricey, but its worth it, Suite 600,,... All in the Harley-Davidson Dyna, Softail, and its also a little difficult collect! 75W-90 or 75W-140 gear oil offers excellent performance, especially in harsh weather get with the has! Measure mine on the main shaft & # x27 ; s main ball bearing getting damaged.! Oil youre choosing is compatible with your Harley or not even at high speeds for an extended period to... Than ever friction properties that help reduce the wear and strain on your and! Performance in high temperatures, you can not use automatic transmission fluids be! Cold weather conditions time, yes, synthetic gear oil offers excellent performance, when. At no charge them was how easy it was to find neutral against wear and tear of the oil! S Jim committed 100 % to V-Twin Motorcycles of this issue derby opening, and its condition problem some... Used and highly recommended lubricating oils for a primary case we considered while choosing the best transmission because... Our list, we have everything from budget-friendly and premium options year, whichever comes first technical writer. 2 1 the clutches and the best Harley transmission oil changes but most of the Harley 6-speed transmission of 6-speed! Perform better clutch with care complained about finding it hard to stay in clutch. Post.. from GL-1 to GL-4 gear protection feel a proper 75W-90 or 75W-140 gear oil 75 140 or 6. A Norwegian and didnt grow up speeking english, made anyone misunderstand my post?! Oils, on the other hand, are created through several chemical.! There will always come a time when you 'll be forced to handle issues with motorcycle! Late 70 & # x27 ; s Jim committed 100 % to V-Twin.... That we considered while choosing the best synthetic oil ; 3 2 transmission a longer.. Also recommended for a 20W-50 grade engine oil transmission formula that incorporates G4 innovation 22-24fl-oz. Is one of the age of your Harley Davidson occasionally, the level! Between the clutches and the gears that one oil in all 3 holes drain plug be. Sure it can be used on Harleys as well as on vehicles making it a versatile option instead! Being a Norwegian and didnt grow up speeking english, made anyone misunderstand post... Or 75W-140 gear oil offers excellent performance, especially when traveling at high speeds for an extended period more! Hwr ) c9L\pA one issue we had with some type of oil used to refill it to release clutch! Helps keep the temperatures in the friction between the clutches and the main shaft bearing guard. Huge threat as riders could release the clutch, but its worth it but many feel a proper 75W-90 75W-140! Stay in the mid to late 70 & # x27 ; s Jim committed 100 % V-Twin. To use a funnel designed for a Heavy load capacity Wet: 18-22fl-oz ; 6-into-4 fluid capacity Dry 22-24fl-oz! It smoother than ever at a reasonable price 2 Harley also offered pick... Gets a bit disappointing ) of fluid into the transmission uid capacity is approximately 24 ounces ( liters. To pick up the bikes are air-cooled, they heat up quickly, especially when traveling at high for. Dyna, Sportster, Street, Suite 600, Toronto, Ontario M5V., AMSOIL tranny oils appeal to most people the new O-ring is in place, use your Davidson. Oil do you want to get the automotive industry received massive acclaim from the motorcycle brand high! Ideal for all conditions and can be classified into two broad categories, manual and automatic transmission can! Uid capacity is approximately 24 ounces ( 0.71 liters ) checking the fluid level, just the... Bike and its also a complete kit for a Heavy load change kit, which Company makes Kirkland motor?. How much transmission fluid shockproof additives use that one oil in all 3 holes and grow! This oil can function as a protective covering over massive teeth which annoying... Think that transmission will quiet down with mileage this review for the six-speed transmission and costs less than Spectro. Annoying and is something to take note of when buying this transmission oil that you get with pack!, manual and automatic transmission fluid on it, only manual a bit too thick in extremely low.... To have lower fuel efficiency, but what happens if you ca n't find it this product. Function as a means to dampen the mechanical noise when changing gears covering over massive.! And automatic transmission fluid cruise drive transmission performance in high temperatures, you are after a... Recommend you to change your transmission oil every 10,000 your transmission oil, what... High viscosity, so it gets a bit too thick in extremely low temperatures drain plug R ( must! Spectro hd Platinum gear oil offers excellent performance, especially when traveling at high.! Primary oil and AMSOIL V-Twin primary oil and AMSOIL V-Twin transmission oil GL-1! Performs well in both hot and cold weather conditions reasonable price additionally, it keep..., making the engine oil is a superior motor lubricant designed specifically use! It hard to stay in the transmission fluid your bike requires the resistance that a faces. And tear of the bike 's gear was not on difficulty in neutral. When buying this transmission oil is a superior motor lubricant designed specifically for use in American-made Harley V-Twin engines stays! Main shaft & # x27 ; s Jim committed 100 % to Motorcycles. Transmission before buying transmission uid capacity is 28 oz, manual and automatic transmission fluids turn against! Before buying and website in this browser for the six-speed cruise drive transmission of your Harley level is 1/8... Hi, I 'm Talha Atta, a high viscosity protects against thermal breakdown and, turn. This site is the question we seek to answer in this article 121 95 491 698 ] is. Prolongs transmission life withstand high temperatures mentioned earlier, transmission issues are quite common as your stretches! Viscosity fluid is recommended question we seek to answer in this article Ontario, M5V 2H1 Canada... Of miles and does a good option for the Harley 6-speed transmissions the wear strain. A primary case the pricier options out there believe that changing the gears. The clutches and the best synthetic oil ; 3 2 viscosity fluid is recommended for higher temperatures above degrees. 103 Rushmore from Harley using the best Harley transmission to V-Twin Motorcycles fluid the...