04-13-2021, 07:04 AM
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#1 |
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Join Date: Apr 2021
Posts: 3
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Zs250gs engine tuning
Hello guys. This is my beast , an old 2006 Zongshen ZS250GS converted to Cafè Racer. Engine is ZS172FMM. I want to give the engine some bit of power, because now is a slug.
https://ibb.co/HYkhnJH https://ibb.co/3cCRmfd Can you give me an advice please? What carburetor can I use? PWK 34? How much can I raise the compression with pump fuel? What kind of CDI and ingnition parts can i use to improve performance? Is there any performance camshaft that I can use into my ZS172FMM engine? Thanks |
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04-13-2021, 07:45 AM
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#2 |
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Moderator
Join Date: Oct 2016
Location: Houma, La.
Posts: 11,561
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Welcome aboard! Biggest carb i would go with is a PWK30 if you are porting the head. I'm bumped my X22R up to 11:1 on pump gas and the PWK30 was perfect. I've gotten good results with advancing the timing with a 4 degree offset woodruff key. I'm not very familiar with the ZS172FMM so not sure what cams will work with your engine.
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2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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04-13-2021, 11:52 AM
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#3 |
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Join Date: Nov 2017
Location: Marseille, France -> Conakry, Guinea
Posts: 1,481
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I think it's a copy of a Yamaha XT225/TW200 motor, but I would need to see a picture of the left side of the engine. If so: https://www.tw-parts.com/
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Linear Mode
