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Author Topic: Kymco 250cc Performance cylinder head?  (Read 642 times)

BettinANDlosing

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Kymco 250cc Performance cylinder head?
« on: May 26, 2014, 09:32:56 PM »
Hey has anyone heard of a performance cylinder head available for the 250cc motors (B&W250 specifically)? There's a possibility that my head is warped and rather than buying a new stock one I would rather pick up something with larger ports and valves.
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2002 Kymco B&W 300; MRP 78MM "300CC", Naraku cam, Yoshimura rS3 exhaust, 17g Sliders, Yellow torque spring drilled airbox, stock carb #115 main #40 pj.

2001 "Yamaha" Zuma AKA MBK Booster; MHR OverRange, Dellorto 19mm BHBG, Polini "big" intake, RS-3 Rear shock, Stock cylinder.

ophelia

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Re: Kymco 250cc Performance cylinder head?
« Reply #1 on: May 26, 2014, 11:28:06 PM »
Try calling Martin Racing Performance. Some of these 250 cc motors end up in racing go-karts.
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2011 Kymco Downtown 300i

BettinANDlosing

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Re: Kymco 250cc Performance cylinder head?
« Reply #2 on: May 26, 2014, 11:41:41 PM »
I would, but I HATE MRP.
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2002 Kymco B&W 300; MRP 78MM "300CC", Naraku cam, Yoshimura rS3 exhaust, 17g Sliders, Yellow torque spring drilled airbox, stock carb #115 main #40 pj.

2001 "Yamaha" Zuma AKA MBK Booster; MHR OverRange, Dellorto 19mm BHBG, Polini "big" intake, RS-3 Rear shock, Stock cylinder.

ophelia

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Re: Kymco 250cc Performance cylinder head?
« Reply #3 on: May 27, 2014, 02:09:42 AM »
Machine the old one flat and enlarge the seats to accept big valves? Look for a local motorcycle racing and tuning shop.
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2011 Kymco Downtown 300i

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