Originally Posted by
Över
Hi
My plus4 team is a pain in the ass, it flames out, hard to tune, rich, lean, etc..
It sounds like an air leak, I have sealed it and changed the carburetor from my toro nero but it is just as bad.
I have 2 Toro Neros Team and they are easy to tune and i love them.
1 race has my team Plus4 gone perfectly, the front bearing are not leaking and i have tested several glowplugs. The comp. is great too. Any ideas whats wrong?
/P
Hi.
How many gallons of fuel has it run?
How much nitro do you use? 0,7 mm head shims for 25% nitro and 0,8 mm (stock) shims for 30% nitro.
Are you leaning your HSN enough? Depending on which venturi you use, you can lean the HSN more than one turn (from the spot where is goes from 4 stroke to 2 stroke) before she runs too lean. You can hear she starts to sing on the straight, when you got the HSN right. If its too lean the engine will keep a high idle and say "DING DING DING", at the end of the straight, when you releases the throttle.
After that set the LSN to a steady idle. If the idle speed it too high it sounds like she is too lean.