PW50 clutch spring mod problem help

[stalefish]

I just tried the holeshot clutch springs in the boys p- dub and the bike ran horribly. The bike has been modified to 60cc and I just got the fmf faty pipe. Power reeds too. So the tranny oil in the Yamaha book recommendation is Yamaha 4 which is 10w30 oil. If I run a thicker oil and go back to stock springs will I be able to delay the clutch engagment just slighlty? The springs I bought from peewee cycle I believe are too stiff because the darn thing barely moves off the line. more so than is practical. HELP

 

[FruDaddy]

Double check you installation, make sure nothing is binding in there. I put the same springs in my sons 50 (stock bore) a couple years ago, and they worked beautifully. The springs didn't really affect the motor, but it pulled out of the gate a bit quicker with them.

 

[stalefish]

I went through and checked it over, The holeshot springs I ordered for $20 were a larger diameter than stock. I'd say stock looks to be 7/16 and the holeshots are 9/16 and made of thicker wire. today I went to the hardware store and found some springs of the same length and wrap and diameter as stock just a bit stiffer. I took two screwdrivers and give them a little stretch to increase the length by maybe a couple mm. I installed these and instead of filling up with Yamalube4 10w30 I got some bell rae 75w tranny oil. It is actually thinner than the Yamalube4 even though it says 75w. It runs good. Takes a bit more throttle to go off the line than stock, but does not impede function, my son isnt racing the bike. Just needs some more go. And it solved my spinning back tire in idle problem as I posted earlier this month. When you give it throttle while riding it definitely has more kick. I spent $1.60 on these springs. I think I may market them :)

 

[FruDaddy]

The extra throttle required to get the bike moving is really the purpose of the upgrade. My son is a racer, and at the gate he would grab the rear brake tight and rev hard. When the gate dropped, he slid his fingers up and the little bike snatched out. The extra revs meant he was leaving under more power, and they definitely helped.
Perhaps the difference between my springs and yours was the source, I got mine directly from peeweecycle.com.

 

[stalefish]

Thanks for the input, yeah I tried the mod in an effort to fix a spinning rear wheel in idle. I got this after converting the bike to 60cc and changing reeds etc. I couldn't set the idle low enough to stop the spin either. So I really was after just a mildly stiffer spring and ultimalty found them at the hardware store, but between them and the new tranny oil I did manage to solve the problem, I would honestly say that the springs I have installed now only stall clutch engagement by 100-200 rpm at most. I did get my springs from peewee cycle's **** store. I believe though that they were more than what I actually needed to solve my problem.