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General => Technical | How To => Topic started by: Tromper on August 06, 2016, 01:15:37 AM

Title: 4 valve head on an S 200
Post by: Tromper on August 06, 2016, 01:15:37 AM

Don't suppose anybody's tried to put a 4 valve head on an S 200?
If so, how'd that work out.
If not, anybody have any input on whether or not it'd fit/work?

Cheers

Tromper

Title: Re: 4 valve head on an S 200
Post by: CROSSBOLT on August 08, 2016, 11:35:14 AM

Does anyone actually make a four-valve head for that engine?

Karl

Title: Re: 4 valve head on an S 200
Post by: Tromper on August 08, 2016, 06:48:02 PM

There are a couple versions for GY6 150cc motors, I'm just not sure if they'll fit the somewhat punched GY6 used in the S 200.  Figured I'd throw it out there in case anybody had done it on one.  If I haven't sold mine by the time the riding season is up, it is a thought.

Title: Re: 4 valve head on an S 200
Post by: JJJoseph on August 09, 2016, 09:15:36 PM

The key is knowing if the S200 is a variant of the "gy6 standard".  You can always find gy6 speed parts for any gy6 engine.  You need to do some detective work: my Kymco "KL10" engine is actually a gy6/qmb139, so for which there's heaps of aftermarket parts.  Kymco dealers don't freely give out this information, so you have to dig around in the black market - or buy lunch for your Kymco dealer.

Title: Re: 4 valve head on an S 200
Post by: Tromper on August 09, 2016, 11:12:54 PM

Would that be stamped on the motor somewhere?