Newbie needs tuning help

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RC Newbie
So I just bought a HSP 1/8 truck with the SH .21 engine. I went through the entire sealing the engine process and break-in. Is it normal to have to re-tune the engine every time you run it? I can have it running great one day, then the next it won't start. Then after tweaking the lsn and hsn it will run good. I just don't know if this is normal or not. There has been no significant differences in ambient temperature. Also, is there supposed to be fuel in the line between muffler and fuel tank? I noticed mine doesn't. Last question, with temps in 80's and 90's should I be running a medium glow plug? All help muchly appreciated.


RCNT Rookie
North Carolina
RC Driving Style
Bashing, Racing
I just got rid of a kyosho fw-06 1/10 scale and got a 1/8 buggy. I mark my HSN with a sharpie for the starting setting then since the air is always changing some tuning is gonna be needed every day it's ran. The engine on my kyosho wasn't so picky but this new engine I have I'm having the same issue as yours. Every day I use the car I'm noticeing that the settings are different.