Originally Posted by
alexlok
When breaking in this engine do you guys just leave the needles as they are as they come from the factory?
Yes leave them as they come but after some tanks you should lean just a little bit just like a normal break in procedure. Make sure you heat the engine 70-80 degrees before 1st run as this engine comes very tight and you may scratch the sleeve if the engine is not pre heat.
Hot air gun is the best but if you dont have one a hair dryer very close to the cylinder head also works. Just dont blame me if you burn the hair dryer .....
I broke in the engine on stand and it still delivers amazing power after 4 galons