Anybody know about Chinese Hua Sheng F142 49cc 4 stroke engine

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Irish John

I want to know if anyone has had lengthy experience with the Chinese Hua Sheng F142 49cc 4 stroke engine because I am getting one and I need to know if it vastly inferior to the Honda GXH 50 or nearly as good or even better than.
I really don't want to waste a lot of time installing it if it is engineered like the HT motor.
I'd be grateful for any feedback.
I replaced the diaphragm in the up draft carb a couple of days ago. Other than that the engine has performed well. I bought this engine for the purpose of beating it up I wanted to see how good they were. I have heard reports of valves being tight when purchased a minor adjustment. I run synthetic oil. I think the fact these are copies of the Honda gives them a little more reliability than if they were straight Chinese design.
I think your right nsideous. I've done 1100 kms now and it is a very nice motor. It has none of the quality fade that the HTs had and I'm very pleased with it. Pity it can't pull up hills like the 70cc HT - my legs ache with the pedalling but on the flat it flies. My estimation is that a 50 - 52 tooth sprocket would suit it best. The 56T is too slow. The 44T was totally hopeless on hills but lightening on the flat 63 km\hr I got without trying too hard. Now I have a 48T cos that's all I've got but very slightly larger would be better on hills. even the 56T wasn't that good on hills - the 70cc HT with a 44T pulled much better. Swings and roundabouts I guess.
I've been using the 44t sprocket and...

woodruff key slot chipped on the output shaft.
I knew not to use the 44t on this F142/ JLgearbox combo but the engine held up great!

After tearing the "JL gearbox" off, I couldn't believe how quiet the F142 was still. All this time I was thinking the valve lash was way off.

Time to replace the output shaft :)
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Got mine last August. No problems at all. Runs good and I have not done any tweaking or adjusting of anything. The factory valve lash was the same as for the Honda GXH50 so I figured it would be OK. A nice quiet smooth little engine with no oil leaks.

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If you want to talk about games I'm sure there is another forum on the web but this thread is not the place for discussing it. This thread has a subject and without wishing to offend you Ikky the subject isn't about games. Please try to respect the rules of the forum and it we can all find out more about motored bike issues.
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