superdave144
Member
- Apr 19, 2008
- 16
- 0
I'm having some difficulty fine tuning my son's bike. I got a tip that increasing the main jet size on my son's JR 50 from a 56 to a 67 would make an improvement in how well it runs. I also pulled the first pilot jet (it has two).
Now, the bike tends to run real rough when held wide open (It used to run like crap down low). Should I back out the airscrew to compensate for the fact that the bike is getting more gas? Any help would be appreciated.
Now, the bike tends to run real rough when held wide open (It used to run like crap down low). Should I back out the airscrew to compensate for the fact that the bike is getting more gas? Any help would be appreciated.