if you got it running you dont need the xtm...


here is how I tune (prolly wrong, and I'm sure Eddie will let me know it..lol).....I get it running with about a 1/2 tank of fuel....get it good and warmed up and do some straight runs....I lean the high end needle in small increments (like picture a clock...I adjust like an hr or 2 at a time)...once I get all its got ( u can tell cause it will lean bog) I richen it up about an hour then richen it up about 1/8th of a turn more....this seems to get me pretty close....then I start on the low....I let the rc idle for a few seconds...then I punch the throttle...if it sounds kinda boggy and doesnt pick up speed fast its too rich...lean it up till it gives the best launch after idling about 3 or 4 seconds...when I'm not gaining anymore launch I'll richen about 1/8th of a turn...then I'll do the pinch test...I will pinch the fuel line close to the carb...if it runs for more then like 4 or 5 seconds and revs before it dies its rich...if it idles about 3 seconds and just barely revs before it dies then ur just right