Takt

iTrader: (15)

Hoping I could use your expertise.

I have an OS .21 motor that came with rotostart ... decided I didn't like the rotostart, so I bought a starter box.

I didn't see a reason to keep the one way bearing and hardware in the motor, so I took it all out, and placed the rotostart backing plate back on.

I started the motor up for the first time, and it goes straight to full speed. I took off the air filter, and the carb appears to be set correctly with the idle ... and it stays closed even when the motor goes full bore. When I pull the trigger .. motor "bogs" down with smoke out of the pipe.

Could taking out the one way bearing and hardware caused this? I can't think of why that would be ... but before I go back and put everything back in I thought I was ask here.

I did notice that the high idle screw / cover had come loose and had screwed out. So I screwed the cover back in.

I'm new to nitro and confused. I'm supposed to race on Saturday. Thanks

tim

Takt

iTrader: (15)

Any help would be appreciated.

Thanks

El Pedro

iTrader: (1)

I would put your needles back to factory settings and retune from there. Which OS engine is it. Sounds like the VG.

onexwm

the backplate built for rotostart crankshaft and non rotostart crankshaft arnt the same and are to be used accordingly..