Gy6 Physically harder to start after bbk By jjoshua20213 (Read 780 times)

[jjoshua20213]

I put a 100cc 50mm kit on it

People told my its really like 87.7cc or something

But after the install its harder to turn over. Even the electic start stuggles. Then I let off and try again


It's as if it gets stuck at a curtain point, but when its past it it's good.


What could this be?



Gy6 139qmb

[tvnacman]

I have a cdi the returds the timing , it will stop the kick back . It holds the timing retarded till about 3000 RPM then it advances . I have gotten good feedback on this .

I would check mechinical timing just to be sure you not off .

John

[Alleyoop]

The more compression you have the harder it is to turn them over. So retarding it a little will help a lot, was happening to mine after the BBK as well it would kickback everytime I went to start it.
Go read this:
Alleyoop

www.scooterdoc.proboards.com/index.cgi?board=trikes&action=display&thread=7117&page=1

[justbuggin]

hope you have it timed right as the piston and valves could be hitting

[jjoshua20213]

I'm too lazy to recheck the timing. I think its right. If it were hitting the valves wouldn't that cause a noticeable problem? Revs nice, starts after one or two turnovers. Not much faster after bbk though just slightly better acceleration. What should I expect? Speedometer's broken but i'm pretty sure i'm topping 40. Pro CDI, coil and 85 carb jet have been added.

[tvnacman]

witch cdi do you have ?

John