Re: Running full blast
Actually, I run my Homelite weedwacker at a speed just off-idle. I've run it this way for the last 8 years without so much as a plug change or de-carbonizing.
I run Sea Foam through it once or twice a year.
I run my chainsaw(s) about half to three quarters throttle 90% of the time and one is over 10 years old.
Run your bicycle motor the way you feel comfortable. They will either blow or run forever.