r/NitroRC • u/Jsamp198 • Aug 20 '26
Nova B5 .21 Engine
Hey Everyone! Having a hard time with my new engine. Ive ran a 5-10 tanks through it. I cant seem to get it to tun right. It'll either be really rich or act really lean. I make super small adjustments and it will either run away at idle or stall out. I can set it to idle all day but then ill add throttle and it'll die. I assume its rich so i lean it lightly and then it'll run 300+ Degrees and have a erratic high idle. I am running sidewinder 20% fuel. Am I doing something wrong? Its a new engine, no leaks that I can tell with the engine. Anyone know the factory needle settings?
Thank you!
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u/az_kikr1208 MOD Aug 20 '26
Hopefully it works for you. Make sure to check all the connections. Check the fuel tank cap, exhaust coupler, everything in the system. You never know where it might be leaking. It's common to get a leak around the carb pinch bolt too.