Huasheng valve clearance

[samijubal]

Does anyone know for certain what valve clearances should be set to on this engine? I've seen anywhere from .05mm to .12mm posted here.

Would it be a good idea to adjust valves before installing the engine? From reading here it seems like they aren't set right from the factory frequently.

 

[fetor56]

As per our resident expert here these are the figures(cold engine)
Eventhough i've never had the need to adjust mine yet i have no reason to disagree.......trust the experts.

 

[bubbatgs]

Hey Guys! I made a call to china and spent about two hours trying to find this information out!!! I finally recieved it!!!
Intaake .08 mm +/- .02
Exhaust .11 mm +/- .02
Plug gap .08-.07 mm
If you need anything else, you will have to call China your self!
Have fun out ther!!! Be safe!

 

[fetor56]

Plug gap is wrong man.

 

[samijubal]

I wondered how that plug gap could be right. Thanks on the valves guys. I saw those clearances, even wrote them down, but then I started seeing others too. One from thatsdax who sell the engine saying .05 on both, which I didn't think was right since the exhaust is always larger, at least in my limited experience.

 

[fetor56]

I wondered how that plug gap could be right. Thanks on the valves guys. I saw those clearances, even wrote them down, but then I started seeing others too. One from thatsdax who sell the engine saying .05 on both, which I didn't think was right since the exhaust is always larger, at least in my limited experience.

Dax doesn't know for sure...he does things by feel.
I'll sick with Irish Johns figures until proven different.

PS...SP gap 0.6-0.7mm.

 

[HoughMade]

I looked at the Honda GXH50 manual- if it's a true clone, these should work:

http://www.honda-engines.com/Engines_owners_manuals/ownersmanuals/37Z4C603.pdf

exhaust- .11 mm, +- .02 mm
intake- .08 mm, +- .02 mm
spark plug- .6-.7 mm, .024 .028 in

...so pretty much what we already had here.

 

[azbill]

thanks for the link Houghmade...
it looks a lot like my HS
I can study it some now
I would think the replacement plug would be the same???

 

[velosolex]

I did a valve adjustment on mine two days ago....super easy! The plug looks like the same one used in Honda OHC 50's and 70's (10mm thread)

Cris

 

[samijubal]

These are done cold I guess? Sounds like a lot of clearance for hot.