Raw fuel

[insaneatvs]

Ok so i put the OS.18 in my Nitro Rustler and i noticed alot of raw fuel coming out of the pipe, I guess i still have some tuning to do?

 

[RC Addict]

I would say it's a tad rich. Lean it out until you have just a little blue smoke out of the exhaust when you hit the throttle. Too much smoke and/or raw fuel equals too rich. If the glow plug is wet it's too rich. If the plug is a little white and slightly damp you are there. Just don't go too lean until you get a few tanks through that new engine! Good luck!

 

[insaneatvs]

Raw fuel or oil? And how much? There's nothing wrong with having a little oil spray from the pipe. For example if you"re idling in one spot on your moms nice clean driveway, and when you take off, you notice there's now an ugly spot there. Besides the fact that you're gonna get a beating,there's nothing wrong with that. Even if it trails oil a little, it's ok. Get yourself a temp gun to help you tune. The smoke trail thing will vary from engine to engine and fuel to fuel.

Ok at idle it spits it out like its to rich on the low end, i set this in the back of my truck instead of MY driveway, it runs greaton the top end but really boggy on the low side from idle up alittle way. I tlaked to a friend and told him and said i need to mess with the low side needle, but its a bitch to get to. I guess i gotta do what i gotta do. I have to put lock tight on the motor mounts anyways this OS.18tm like to vibrate itself loose

 

[brad55102]

IMO this is not a bad thing. It's better to run your car rich rather than lean. If your just bashing you might as well save your engine and run it rich! IMO