Tail_BoomStrike
Veteran
Location: Virginia Beach
My Posts This: Topic Forum | Correction to my above post.... The ring wasn't cracked.... I thought it was, when I was moving the piston up and down, cause it was bubbling.... I took the liner and piston later on.... The ring wasn't actually broke.... But when installed, The ring gap was too wide to make a seal.... All in all still needs piston, liner, ring kit....
I think the break in settings in the manual is not good.... Maybe 3.5 in for the low needle, and 1 3/4 for high is better.... Mine came back abnormally hot from just hover break-in with the settings from the manual.... 4 in is too lean, it wear out the ring and liner.... That could also be the cause of tuning issue later on....
For shimming and plug combination..... More compressed, use colder plug, less compressed hotter plug..... There's this thing called heat of compression..... Hotter plugs on more compressed state advances the timing more.... Although, the mixture is still rich, ignition accurs, but poor combustion..... I will manifest as sooth build up on the plug.... When leaned more for proper mixture ignition timing is too advanced to create power, sometimes pre-detonation.... Less compressed, need hotter plug to correct timing..... The sad thing is it requires plenty of time experimenting what combination would work.....
| Quote |
| Hi Tail_BoomStrike,
Have you check carefully if this is a throttle servo failed or just the carb barrel is jammed, I have the carb stuck in the first flight.
Can you help to confirm this ?
Thanks
TGO
|
TGO
My throtle doesn't stick.... It's acutally silky smooth.... Although, Before it got installed.... Inoticed it was sticking..... I uninstalled the barrel and removed the spring, lube the barrel with fuel... And no more sticking..... |
End result is that a total rebuild is required 
