2stroke
#49
#50
We rebuilt a 2 stroke 6-71 detroit last year that overran itself when a fuel leak sprayed right into the intake. The main bearings were stamped with a 1939 date code. These engines had been together and running for 65 years in a 55 foot boat. Amazing. For the guy with the chainsaw fresh gas is the key. my 1982 Stihl 028 just finished cutting its 10th cord this season as it has for the last 11 years Ive had it. never done a top end on it.. 2 strokes rule. I still have my 89 yz-250 and it still rips.
#53
2-strokes are a done deal. Everyone looks at peak power and that screaming 2 strokes can make so much power but I think the biggest problem with 2 strokes is they have no usable power. You always have to be in the power band to go anywhere. That is the main reason motocross has gone to 4 stroke, well that and they dont have to rebuild them all the time, them guys were always rebuilding the top ends of 2 strokes to keep em going. But back to the usable power thing, them guys were always shifting and having to slip the clutch in corners to get any drive out. Now they can just keem em a gear high and power out faster then they ever could with a 2 stroke. If you ask me I'd take a lightweight high reving 4 stroke over a 2 stroke anyday. I have a YFZ450 quad and after riding with a few guys and being around banshees and everything I wouldnt give it up for a 2 stroke anyday. In the sand I can beat modded banshees all day long with just a pipe and intake. Another good example are snowmobiles. You will see them eventually being phased out for 4 stroke sleds. They already are. The technology with 4 strokes nowadays succeeds anything you can do with 2 strokes and they still last twice as long. If you just into dragging in the sand and stuff sure a big cc 2 stroke will scream but thats all you got, something to go straight, I can take my YFZ and hang with most bikes in a drag in the sand and the next day I can take it to the motocross track and jump 80ft jumps all day long. To me i just dont see anything advantages in 2 strokes. Sorry if I offended anyone here i know some people are still die-hard 2 stroke fans.