Originally Posted by
Quad Racer 34
you don't want to start that engine without preheating it first for break in. I always preheat my engines. I have 5 or 6 gallons on my practice engine and STILL pre heat it before I start it up. and it still has a lot of pinch. it definitely lengthens the life of the engine imo.
+1
As well a preheated engine is much more stable for tuning....