ypvs carb troubles oh yeah.....big time

Home : Forum : Links : Tech Data : Help the Site! : VIP Login
UK Auctions : USA Auctions : Retail Therapy

Yamaha RD/RZ Motorcycle Forum Index » General RD/RZ Chat


	ypvs carb troubles oh yeah.....big time

Jump to:

View Thread

Author

Message

Post subject: ypvs carb troubles oh yeah.....big time

gary-rd-robbo Offline

RD/RZ Blood Donor

One-handed Stoppie!

Joined: 07 Oct 2007

Total posts: 2311

hi lads i think i know what you may end up saying but let me explain the problem.
got a near mint 31k bike and loads nos parts fitted but need frame doing etc etc...
problem is this....it splutters from 3k up to 8k then bang fine all the way to 11k ...now this bike has 31W carbs with cough cough keyster kits in all 31k standard settings jets needles and pilots and air screws at 1 1/4 out ...it is ok only when 8.5 k in any gear and to be honest after a long hard 70 mph (honest) hard open throttle in 4th i killed the ign and chopped ...lovely brown plugs and the ends of the baffels are also nicely tinge of deep brown .
this suggests the mixture is all ok.
however bike is shite through the rev range till you hit full hard open ...
the pipes are 31k genuine but rest of bike is totally stock!!!! no porting/boost or spannies..
i think the 31w carbs are at fault and need 31k carbs and set them up.
ive dropped needles and made worse the raised to bottom clip which improved up to 5 k then boggs out...this on the 31w carbs
i am sure prob is
a,
keysters
b,
the 31w have restictions in the airways?? drillings??

any help pleaeseeeeee
or il add a wanted section heading 31k carbs needed Laughing

all the settings are all stock and carbs are mint outside and in and all clean minty...so not blocked etc etc
any ideas??? posted this as i have spoken to kev and he also thinks its the 31w carbs ...cheers kev!!! Wink

any for sale or the powerjets are goin on the bike Wink

btw been told the 31w fit 250 lc and work a treat and no 5k flat spot may try this out to see.
cheers
gaz

Posted: Sat May 10, 2008 9:20 pm

Post subject: Re: ypvs carb troubles oh yeah.....big time

whitelc

Daily Burner

Joined: 16 Aug 2003

Total posts: 154

Location: Jyväskylä, Finland

gary-rd-robbo wrote:

btw been told the 31w fit 250 lc and work a treat and no 5k flat spot may try this out to see.

If you do try them, please report. I've a set of 31w carbs that I have absolutely no use for and an lc250 that's lame.

Posted: Sun May 11, 2008 7:16 am

Options and Permissions
Display posts from previous:	You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You cannot attach files in this forum You cannot download files in this forum

Page 1 of 1 .:.