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TOPIC: Re:What was your setup when you had SVS? Forum Tools Post New Topic Show latest posts Rules

#96140 dseward (User) Senior Boarder Posts: 231 What was your setup when you had SVS? 5 Months, 1 Week ago   Yamaha keeps telling me that stock Roadstars do not get SVS. They keep blaming half my problem on the pipes. So my question to the group is this. IF you had SVS. What mods did you have if any when this happened to you? I'm thinking of throwing this info together to submit to Yamaha so they quit saying we are creating the problem.. Here's what I'd like to know. Year of R*, Modifications, Miles on bike at time of SVS (Approx). Here's mine! 2007, HK 3" Big straights, AIS Removed(at the 8500 miles only), 800, 1600, 8500 miles. If this has been done before let me know. No sense doing it twice!   Logged     2007 Road Star Silverado. w/ HK 3 inch Big Straights VROOOM!!   The administrator has disabled public write access. #96142 Law (User) Senior Boarder Posts: 236 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   Hey, I have an 06 roadstar 1700. 100% STOCK, new off the show room floor. Developed svs at about 3000 miles. Yamaha already knows who I am and my lawyer. It's been a long road but I hope my trip is almost over. I have not been able to ride for about a year now. Still making payments on this piece of... junk.   Logged     The administrator has disabled public write access. #96146 rdunbar123 (User) Fresh Boarder Posts: 57 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   I bought my roadstar new in March 2007. When I had my stage 4 done at 480 miles they gave me my stock pistons back and already they had a thick coating of carbon. A yami mechanic said it usually isn't a question of if but when. Having said that my first roadstar had a hypercharge and road house duals on it. I traded it on my venture at 10,000 miles no problem and the guy that bought it rides it on long trips and has not reported any problems. I wonder if it is more due to not ever keeping it a higher speeds due to in town driving? In any event yamaha knows about the problem.   Logged       The administrator has disabled public write access. #96152 DocShadow (Admin) Hmmmm .... send beer Admin Posts: 10822 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   rdunbar123 wrote: I wonder if it is more due to not ever keeping it a higher speeds due to in town driving? In any event yamaha knows about the problem. No .... it's a fundamental design flaw in the heads which is precipitate buy overly rich carb settings. Good luck with your communications with Yamaha .... they are aware of a 'problem' but will not acknowledge it publicly. You also need information on stock or modified carb. Doc   Logged     My Bike Website   The administrator has disabled public write access. #96153 JavaBiker (User) Fresh Boarder Posts: 50 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   I purchased my 06 R* new in March of 06, developed svs a few months later with a completly stock mechine. I used several treatments of Ring free at the shock level to correct, followed by a set of hotter plugs and regular use of a gas additive. I also have a yamaha service bulletin in pdf, that I found some where, that covers the back firing and carboned valve issue, took it to my dealer and they said they never knew about the bulletin, If you want it I can email it to you.   Logged       The administrator has disabled public write access. #96157 Musky (Moderator) Doc took Grams beer Moderator Posts: 13222 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   I never had SVS but here's a tech bulletin that Yami sent to all it's dealers. Proves that they know about it and are basically outlining way to blame it on the customer IMO. It can happen on a stock bike or one that's has mods. Tech bulletin   Logged       The administrator has disabled public write access. #96158 dseward (User) Senior Boarder Posts: 231 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   Thanks Doc, I didn't think of that part about the carb modifications. Dealer gave me a copy of the bulletin after the first time I had the SVS. 70% of my driving is expressway where I hit the limiter at least one on ramp per week. When I'm not on the expressway. I hardly ever get out of 4th gear! So that shot their "Lugging the engine to much" claim!   Logged     2007 Road Star Silverado. w/ HK 3 inch Big Straights VROOOM!!   The administrator has disabled public write access. #96164 Law (User) Senior Boarder Posts: 236 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   http://www.liquidcooledairpower.com/lc-topendheat.shtml This explains alot, read the section "sticky exhaust valves" This explains why yamaha dropped my oil to 3 and 1/2 quarts of oil! Now my rings are toast!   Logged     Last Edit: 2008/06/27 10:18 By Law.   The administrator has disabled public write access. #96228 Blackroadie (User) If it ain't broke, You ain't ridin' hard enuf ! Platinum Boarder Posts: 1830 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   04' R* ... 100% stock, SVS at 2000 miles.   Logged     Last Edit: 2008/06/27 14:28 By Blackroadie.   2004 Midnite Silverado   The administrator has disabled public write access. #96230 Envinyatar (User) It's not "what" you ride, it's "that" you ride. Junior Boarder Posts: 144 Re:What was your setup when you had SVS? 5 Months, 1 Week ago   SVS at around 7,000. I have HK 3" Big Straights, Speedstar jet kit at the following settings, and a Speedstar BAK. Needle Manufacturer: Mikuni Needle Clip: 5 Jet Manufacturer: Mikuni Main Jet Size: 170 Pilot Jet Size: 50 PMS Screw Manufacturer: stock PMS Turns Out: 2.5 Yamamamma denied all when I called.   Logged       The administrator has disabled public write access.

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