Your 2t... How Many Miles?
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RH50CC
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Your 2t... How Many Miles?
I was wondering how many miles some of you have on your 2t motors. I know that the 4 cycle engine will outlast the 2t & there is a member on here with a Buddy 125 that has 40k & counting and was wondering how many miles in comparison a 2t may be good for.
'09 Rough House, Kymco S 200
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Major Redneck
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2007 TGB KeyWest,,, at 10,000 miles i rebuilt from end to end,,, 27,000+/- few hundred on that rebuild (broke speedo at around 70mph a few 1,000 miles ago) still runs strong yes same kavlarbelt/rollers all parts from MRP except the main crank bearings (the bearings are titanum)... the hole rebuild was 700bucks and well worth it,,, only complant i have is its VERY LOUD!!! i like loud but its very loud... im on my 5th set of tires... its still a joy to ride... its got wear on all parts and needs rebuild in order to hit that 70mph mark again,,, its slow to take off from gearing and oversize tire on the rear but it holds 45 at a grade very well to be a 49.3cc 2t engine... i think about 30,000 is all im able to get out this one but hell i drive it like i stold it....... 
Scoot'in is more fun than beating up your sister, and it comes with a key!!!
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vespatech
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if you were to keep your roughhouse stock you may see 20,000.
Major redneck has high end parts in the tgb...better stuff than what comes in a pgo. i am seeing rough houses blow up at 6000 when people pull the exhaust cone. use the best oil you can find. jet so it doesnt run too hot and dont find a really big hill to see if your bike will do 60.
There is no rev limiter and the trans is built for about 45. I may sound like i am preaching but i see people blow up solid bikes daily and i have my share of melting pistons.
Major redneck has high end parts in the tgb...better stuff than what comes in a pgo. i am seeing rough houses blow up at 6000 when people pull the exhaust cone. use the best oil you can find. jet so it doesnt run too hot and dont find a really big hill to see if your bike will do 60.
There is no rev limiter and the trans is built for about 45. I may sound like i am preaching but i see people blow up solid bikes daily and i have my share of melting pistons.
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RH50CC
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vespatech wrote:if you were to keep your roughhouse stock you may see 20,000.
Major redneck has high end parts in the tgb...better stuff than what comes in a pgo. i am seeing rough houses blow up at 6000 when people pull the exhaust cone. use the best oil you can find. jet so it doesnt run too hot and dont find a really big hill to see if your bike will do 60.
There is no rev limiter and the trans is built for about 45. I may sound like i am preaching but i see people blow up solid bikes daily and i have my share of melting pistons.
Thanx 4 the info. What size jet?
'09 Rough House, Kymco S 200
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RH50CC
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jmkjr72
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well on my zuma i got to 8000 miles before i decided to put a bbk on and there was no need for new rings on it
on the euro sites they are even getting 15,000 on aftermarket bbks with out new rings
but puting new rings on a 2 stroke is simple and less work then on a 4 stroke
on the euro sites they are even getting 15,000 on aftermarket bbks with out new rings
but puting new rings on a 2 stroke is simple and less work then on a 4 stroke
z 2008 zuma 50
olive 2008 setlla
1979 tomos
olive 2008 setlla
1979 tomos
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scootertuner1000
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I used to have a Yamaha 50cc which was standard and would do a shade under 50mph. I would ride it flat out for miles at a time and it wouldn't protest. I easily put 20k miles a year on it, if not more. I sold it with 52000 miles on it and all it needed in the engine was three sets of rings in that time, a couple of sets of clutch shoes and several drive belts, nothing else. it went as well the day I sold it 2 and a bit years later as when I first got it. I changed the rings every 20k miles just for maintenance at the same time as giving it a de-coke (cleaning the carbon build up, mainly from the exhaust port.)
2 strokes can last just as long as 4 strokes (when you change the rings regularly) require less maintenance, because there are less moving parts and don't need engine oil changes (because they don't have engine oil). Leave your engine oil on a 4 stroke too long and you are in serious trouble with camshaft wear etc.
2 stroke engines also produce much more power for any given capacity. Every downward stroke of the piston is a power stroke compared to every other stroke on a 4 stroke engine. In theory then you would think a 2 stroke would produce twice as much power for a given capacity. It doesn't produce twice as much power, but does produce about 20% more, all other things (cc etc.) being equal. The reason it doesn't produce twice as much, despite having twice as many power strokes, is that it has less volumetric efficiency than a 4 stroke. A 2 stroke has honking great holes (ports) in the side of the cylinder wall which limit the amount of time that power is produced on the downward stroke of the piston. Even so, the fact that every downward stroke produces power outweighs the fact that they have less volumetric efficiency and they produce more power, just not twice as much power. That is why 250cc 2 stroke dirt bikes are in the same racing class as the 450cc 4 strokes or 125cc 2 strokes are in the same class as the 250cc 4 strokes.
All of that said, O have a 4 stroke Lambretta and a 2 stroke Suzuki (1974 GT380) and a self built board track style bike with a single cylinder 80cc 2 stroke engine. The Lambretta has 17000 miles on it and still looks brand new, the Suzuki 2 stroke has 11,000 miles and the Self built boardtrack racer (style) has 3000 miles on it. All of them have just had regular maintenance. All look brand new. You can see my bikes on Youtube. Same handle there scootertuner1000
2 strokes can last just as long as 4 strokes (when you change the rings regularly) require less maintenance, because there are less moving parts and don't need engine oil changes (because they don't have engine oil). Leave your engine oil on a 4 stroke too long and you are in serious trouble with camshaft wear etc.
2 stroke engines also produce much more power for any given capacity. Every downward stroke of the piston is a power stroke compared to every other stroke on a 4 stroke engine. In theory then you would think a 2 stroke would produce twice as much power for a given capacity. It doesn't produce twice as much power, but does produce about 20% more, all other things (cc etc.) being equal. The reason it doesn't produce twice as much, despite having twice as many power strokes, is that it has less volumetric efficiency than a 4 stroke. A 2 stroke has honking great holes (ports) in the side of the cylinder wall which limit the amount of time that power is produced on the downward stroke of the piston. Even so, the fact that every downward stroke produces power outweighs the fact that they have less volumetric efficiency and they produce more power, just not twice as much power. That is why 250cc 2 stroke dirt bikes are in the same racing class as the 450cc 4 strokes or 125cc 2 strokes are in the same class as the 250cc 4 strokes.
All of that said, O have a 4 stroke Lambretta and a 2 stroke Suzuki (1974 GT380) and a self built board track style bike with a single cylinder 80cc 2 stroke engine. The Lambretta has 17000 miles on it and still looks brand new, the Suzuki 2 stroke has 11,000 miles and the Self built boardtrack racer (style) has 3000 miles on it. All of them have just had regular maintenance. All look brand new. You can see my bikes on Youtube. Same handle there scootertuner1000