EXUP Worldwide

I have a set of 39mm flatslide carbs off an OWO1 fitted to my YZF 750 using a 1/4 turn quick action throttle.
Problem is the throttle action is very heavy.
OK for short races of 5 or 6 laps but longer races are a struggle.
Any suggestions to make the throttle lighter?
Stuart

Trace the cables make sure it's a free run, lubricate the cables, check the action on the carbs is not sticking etc..

Dave

New cables, no kinks, action smooth and not sticking.
It seems the spring is just too strong to close the slides.
Stuart

You're just going to have to look for a different twist grip and go for one with a greater leverage/ longer pull. That, or try finding some lighter springs. Iff you're using a two cable throttle the spring shouldn't need to be that stiff (as you're closing the throttle with the return cable), Different story on a dirt bike, one cable, system where the spring is the only thing closing the slides when you back off on the gas.

I agree, I think a different throttle tube & some lighter springs. I run the standard tube & softer springs on my flats & it works well. Give that a try matey..
Regards Steve.

Steve,
Where did you get your lighter springs from?
Congratulations on winning Retro class in St George by the way.
Regards
Stuart

Jaffa wrote:Steve,
Where did you get your lighter springs from?
Congratulations on winning Retro class in St George by the way.
Regards
Stuart

Thanks it was great to retire on a good note thats for sure.
Try any car accessary shop has a huge range of springs Stu. Give them a go you'll find one for sure, just take your with you & you will be able to feel the differance.

RETIRE??

Your not retiring from Racing are you Steve??

sickle44 wrote:Your not retiring from Racing are you Steve??

Racing is like smoking, you never give up...you only stop. The urge will be always there.

You serious Steve????

Yes guys Im retired, I think it was time. I have had enough [for now]
I still have the P6 GSXR which I will sell at some stage. I have to do a couple of things first, & if I still have the it, I might have a trott at the Barry Sheene meeting, just for a laugh, but that will be about it. Nothing serious of corse?
Unless we get an invite to support the world superbikes at Phillip island, I wouldnt mind have a gallop around there on something with only 110hp. Should be nice & safe.

Well then, if you can't be encouraged back on to the track,

Here, here, ............ To Mr. Butler then.....

I sure hope you aren't letting a scare keep you off, just saying because of the 110hp comment.

No mate, I just felt it was time I hung up the leathers. Ive done everything & more than I wanted to do in my return to racing. So after winning the Retro Championship, I felt it was just a good time to go.
Like I said, If I still have the 1990 GSXR I might have a wobble at the Barry Sheene meeting, but I even doubt that. You know when the time comes & It did for me. So for now its relax back & rest a while..

Well then,

Like I said, , here here!