SKELLER use 25% and run thru 1 1/4 gallon
HOUSTEN not noting low compression ,,just remember more power ,,also when removing shim just as a guide would i be richening a little and leaning bottom a bit ???
EZVEEDUB ,where did that name come from ?fuel used 1 1/4 gallon number under head ,,what is that for ??,,i do have standard plugs,,and yes got decimal wrong ,,thanks so far any help greatly appreciated
The number on the head is the combustion chamber size. With you 0.30mm shimming, it should run with 30% fuel. If you take the shim out, you should be able to run the 25% but make sure it doesn't run hot or detonate.