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Old 01-19-2010, 11:50 AM   #9
SpudRider   SpudRider is offline
 
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Join Date: Jul 2008
Location: Idaho
Posts: 25,054
Re: zong diaphram

Quote:
Originally Posted by fishman10
i should probably recheck that spud ,I was in a hurry and its kinda dark where i was working.
That is probably a good idea, Fish. If you are going to open up the carb again, you could move the jet needle clip down one, or two slots. Then, if you remove the throttle cable, you could rotate the carb bottom toward you, and reinstall the stock, size 132, Teikei main jet.

Unlike the Yamaha TW200 motorcycles, which are jetted very lean for EPA purposes, I think the stock, Zong jetting is pretty close to ideal. You might be surprised at how well the bike runs with the stock main jet, and the jet needle raised two notches. If the bike is still too lean, I would then test the size 132.5, Mikuni main jet, with the jet needle placed in the middle position.

Spud
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"Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain

2015 Zongshen ZS250GY-3 (RX3)
2006 Zongshen ZS200GY-2 (Sierra 200)
2005 Honda XR650L
2004 Honda CRF250X
1998 Kawasaki KDX220

Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894


 
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