honda 2 stroke atv's said to re ring every 6 hrs. some of them are still running fine 25 yrs latter. but back in the 70's we would at least re ring each week-end on the piston port cr 250's. and still blow em up!
I don't wanna reinvent or blue print any more of those enginesWhen I can buy a engine that will run flawlessly for years right out of the box..such as this Subaru.. IMO we are not getting the whole story out of his fabulous China motor? I mean one in 5 might be a cool motor?Well so far Hart has gotten 7000 miles on a HT which I would imagine is 300 hours at least. He went from Texas to Tn then on to Wa. in a year.
I don't wanna reinvent or blue print any more of those enginesWhen I can buy a engine that will run flawlessly for years right out of the box..such as this Subaru.. IMO we are not getting the whole story out of his fabulous China motor? I mean one in 5 might be a cool motor?
Are you traveling these days with a H.T. china girl George?
Heh, thinking you're probably right.and this is all i gotta say...
being this is a ""family"" forum I could not put up a picture of somebody/some people beating a dead horse now could I?Man what kinda attempt at hijacking a thread was that LOL
Step away from the keyboard and nobody gets hurt!
Wayne,Well, it seems to me that the OP's topic was well covered and not much else from our members could contribute to it. Dead horse like Yank said LOL lil more tact wouldn't hurt :~)
As long as the OP hasn't complained, and everybody is civil, what's wrong with letting it linger on and evolve, for those of us that are interested in the info available from the evoloution, instead of just letting it die?
I used to think that 4 strokes last longer and were superior to 2 strokes also, but I am reconsidering my opinion for several reasons:
1. "2 strokes rev higher than 4 strokes": false - 4,000 rpm on a 2 stroke is the same as 4,000 rpm on a 4 stroke, the only difference is that one has a power stroke on every stroke and the other every other stroke.
2. 2 strokes use new oil all the time, four strokes are using used oil that may possibly be out of viscosity range as it ages if it is not a quality oil, causing metal to metal contact. Additives can break down. Old oil can form sludge and clog oil passages. And small engines hold very little oil so it gets hot and can have thermal breakdown. The assumption with a 4 stroke is that if there's oil in there, then it has adequate lubrication - not true.
3. 2 stroke oil has come a long way since 30 weight motor oil was first used at high ratios like 16:1 New high quality oils run at 100:1 or leaner. 2 strokes last longer today because of better quality oils and are smokeless at the leaner mixes.
4. 4 strokes have a possibility of oil starvation - if a 2 stroke has fuel, it has lubrication
5. I adjusted the valves on a well known 4 stroke engine brand, and the metal holding the adjusting screws was brittle and snapped off. The engine had to be junked.
6. New 2 strokes are able to meet modern emission standards.
7. Between valve clearance adjustment on a 4 stroke, the engine is operating below optimum for a while until the valves are adjusted again. Many people don't want to mess with adjusting valves which can lead to engine damage.
8. 2 strokes have fewer moving parts to break.
So I'm seriously leaning towards purchasing a 2 stroke for my motorized bike.