Originally Posted by
Baja86
I also have the same problem, but mine
is like the throttle is stuck on, and it runs
Pretty fast without giving any throttle to it
It just happened all of a sudden,
Was fine one day but not the next
Any ideas what it could be? It's a 1/5 baja
If it's a nitro engine, then it's a combination of IDLE screw and LSN Bottom needle mixture.
Often a FAUX/False idle can be achieved by setting the IDLE too high allowing too much air in, while the bottom needle is open too much allowing too much fuel as well. This extra fuel richens the FUEL to AIR mixture and the idle decreases from what is in fact too large an idle gap.
Same applies to a petrol 2 stroke. The bottom / LSN/Idle mix.
Start with a 1mm idle gap.