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Old 12-25-2010, 03:16 PM   #7
SpudRider   SpudRider is offline
 
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Join Date: Jul 2008
Location: Idaho
Posts: 25,054
Quote:
Originally Posted by CyrilGhislain
allright the I guess I'll have to get my hands dirty :P by the way any idea what site sell the jets I need for this bike ? any models in particular ? I imagine the has to be diferent kinds of jets for different kinds of carburators right ? or is it the same design of jets for all the carbs ?
Welcome to these forums, CG; we are very glad you joined us! Also, welcome to The Cult of the Zong. Reistance was futile. You have been assimilated!



Your ZS250GS sportbike should be equipped with a Teikei MV30, constant velocity carburetor. My Zongshen 200GY-2, dual sport motorcycle employs the slightly smaller, Teikei MV28, constant velocity carburetor, which is virtually identical to the Teikei MV28 carburetor employed by the 2010, Yamaha TW200 motorcycle. You can learn a lot about your bike's carburetor by reading the appropriate threads in the Zong Sticky, located at the top of the Dual Sport Forum.

http://www.chinariders.net/modules.p...ewtopic&t=8673

If you wish to change jets on your TK MV30 carburetor, you have several choices. Teikei carburetor main jets are sold at MotorcycleCarbs.com, but they are fairly expensive at a current price of $7.95 per jet.

http://www.motorcyclecarbs.com/Teike...n_Jet_C825.cfm

As with many members of the Yamaha TW200 forum, I prefer to use Mikuni series N102/221, small, round main jets. The thread on these Mikuni jets is slightly different from the Teikei jets, but the Mikuni jets still fit pretty well. The Mikuni jets are more widely available than the Teikei jets, and are much less expensive. The current price for N102/221, Mikuni, main jets from Rocky Mountain ATV is $3.49 per jet.

http://www.rockymountainatvmc.com/al...FamilyId=25085

Mikuni carburetor jets employ a different sizing system from other manufacturers. However, through a process of trial and error, Yamaha TW200 owners have discovered that a size 132, Teikei, main jet is roughly equivalent to a size 130, Mikuni, main jet. If you decide to begin experimenting with different carburetor jets, you will find some general guidelines to help you contained in the following thread.

http://chinariders.net/modules.php?n...ewtopic&t=9165

Once again, welcome to The Cult of The Zong!



Spud
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Spud

"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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