I think my engine will run longer if I operate it at full blast after warm up all the time, seems to really like it. Like a chain saw or weed wacker. Am I wrong to think this just seems better. Seems smoother operation.
mine does around 36 mph full blast and it may be good for the motor i am not really sure thier but not for the bicyle, motor mounts, and everything else. i ussually cruise around 30 mph with my 70cc motorized bicycle
Like Jemma, my mechanical ear hurts when my motor is clanging around. I use almost two ozs. of amsoil per litre of gas as this seems to slow things down a bit but my china girl seems happy with this mix. As far as going full out all day , I would never do that and prefer to give it short blasts.
Every engine is different, I run each one at whatever speed it likes best...
I built one two days ago than runs really solid & crisp from 1/2 throttle all the way up.
The "Bomber" loves it at full throttle, my old "Indian" bike liked it at 3/4... ?
Just go a little fat on the oil mix, & run it where it likes!
A given engines' "redline" is what the engine was designed to run at for it's ''service life", service life being defined as when the engine is no longer within factory specs..
So, if the engine has a 6000 rpm redline and a 500 hour service life, then if run at 75% of redlline, it should run 25% longer before it needs to be rebuilt. 50% of redline all the time would result in a 50% longer service life ect.
HOWEVER since these frame mount engines can vary wildly in quality control, one can only assume that "factory specs" are just as wild of a variable.
Run 'em where they feel/sound good, and don't worry, be happy. If you get 1000 miles from one, you got your money's worth.
I guess I will continue to operate mine at full blast mode, and give it a little extra oil just incase. I really have heared that running a two stroke wide open is best. by several reliable sources. Think about it this way you would not run a chain saw or weed wacker at low RPMs
I disagree with your logic mainly because every doubling of engine speed causes increased frictional forces by 4 (friction is exponential). If friction is main cause of engine longevity than decreasing engine speed by 25% would mean a greater than 25% increase in longevity.
Yes, that's pretty much true. In many 3rd world countries in remote villages, the villages use Lister diesel generators. The generator runs at a constant 600 rpm and these generators have been known to last 40+ years without overhaul and shutdown only for oil changes and other maintenance.
Info could be as accurate as the term 80cc but 2.4 horse at 4000rpm and they rev out at 6000 to 7000. If you were at 4000 rpm you would be getting the full power band as it would tend to mellow out after that. (At least on a Dyno, on paper )