valve clearance on huseng engine 142 F

[islanddave]

What are the valve clearance measurements for this engine

Thanks DAVE

 

[The_Aleman]

The Search function works much quicker than posting a new thread. Just a heads-up. The first search result should help.

huasheng valve adjustment - Google Search

 

[recumbentbill]

What are the valve clearance measurements for this engine

Thanks DAVE

Intake .003"
Exhaust .004"

 

[Otero]

I've heard what Bill sez there, and according to dax its .002" top dead center.*
I'm leaning more towards Bill's appraisal. Who else has an opinion on this?
*(piston position?)

 

[The_Aleman]

I've heard what Bill sez there, and according to dax its .002" top dead center.*
I'm leaning more towards Bill's appraisal. Who else has an opinion on this?
*(piston position?)

GXH50 manual says, verbatim:

IN: 0.08 ± 0.02 mm
EX: 0.11 ± 0.02 mm

Convert to inches and you get roughly .003" intake /.004" exhaust

Bill's also put more miles than almost anyone on a Huasheng, I'd trust what he says.

 

[Bikeguy Joe]

The .003 intake and .004 exhaust are pretty standard for four strokes of any kind.

If you get them too tight, say .002, once the engine warms up a minute or less it will hold the exhaust valve off the seat a bit. Sometimes it will run like that and burn the valve, most of the time, it will just slowly quit running.