Adventure Motorcycle Magazine Subscribe Now

Results 1 to 7 of 7
  1. #1 Different Carb On QM200GY? 
    C-Moto Regular
    Join Date
    Oct 2008
    Location
    Stafford, Texas USA
    Posts
    59
    Anyone thought about putting a different carburetor on a Qingqi QM200GY/Qlink XF200 for more power or just a better type of carb. Most carbs are not that expensive from what I have seen and I just wonder if it would make a big improvement in power.
    Qlink XF200 Flat Black MODS: P&P Exhaust Pipe-125 Main Jet-35 Idle Jet-Jet Needle Clip On Forth From Top Position-Denso Iridium Spark Plug IX24-Sprocket Specialists #550-16 16T Front Sprocket-SAI Removed-Rear Fender Cut Off-Brake Light Flasher-55 Watt Headlight Bulb
    Reply With Quote  
     

  2. #2  
    Honorary C-Moto Guru
    Join Date
    Jun 2008
    Location
    Gijon, Asturias, Northern Spain
    Posts
    580
    Have a look at this thread. Poster "Rainer" was going to try a Molkt carb on his, but we've heard nothing more about it.

    http://www.mychinamoto.com/forums/sh...ighlight=molkt

    Due to the method of fixing, with one of those plug-in rubber adapters, it won't be easy to find an ordinary slide carb to fit (I could be wrong though). The distance between studs is the problem. They're 65 mm apart. You would need a carb with that pitch and an insulator/distance piece and gaskets to match.

    The port size is 28 mm, reasonable to accommodate the Mikuni BS28 mm carb. The 31 mm BS31 CV carb carb from the Suzuki DR200 would fit but would benefit from the inlet port opening up to match and also the rubber adapter from the same bike. I'm informed that earlier DR200's had slide carbs but they were changed for CV carbs for emission purposes. Be interesting to see what sort of carb and distance piece they had.

    Another problem with fitting a slide carb would be the throttle cable. Our system is totally different from that and would need special throttle cable made up.

    If we could find a slide carb it needn't be any bigger than the 28 mm we have now for an improvement in performance. A 28 mm one would probably be OK. The reason being that the CV carbs always have to be oversized to account for the restriction that the throttle butterfly and slide components present to the air intake. Slide carbs have no such obstacles and can be a little smaller than the OEM CV carbs (2 or 3 mm they reckon).
    Jincheng Monkey JC50Q-7
    Skyteam Dax replica ST110-6
    Zongshen ZS125-43
    Qingqi QM200GY-BA Super Motard
    Qingqi QM110GY
    Reply With Quote  
     

  3. #3  
    C-Moto Regular
    Join Date
    Oct 2008
    Location
    Stafford, Texas USA
    Posts
    59
    Thanks for the info! I am going to look at what type of 28mm slide carbs there are out there and maybe think about getting one to try out.
    Qlink XF200 Flat Black MODS: P&P Exhaust Pipe-125 Main Jet-35 Idle Jet-Jet Needle Clip On Forth From Top Position-Denso Iridium Spark Plug IX24-Sprocket Specialists #550-16 16T Front Sprocket-SAI Removed-Rear Fender Cut Off-Brake Light Flasher-55 Watt Headlight Bulb
    Reply With Quote  
     

  4. #4  
    Honorary C-Moto Guru
    Join Date
    Jun 2008
    Location
    Gijon, Asturias, Northern Spain
    Posts
    580
    The DR200 years 1986 t0 1988 used a strange 28 mm flat-slide carb with a similar plug-in fitting and even the same sort of throttle cable assembly. It was called a TM28 and was also used on the XR200 and others. Looks like this:



    The trouble is that they're getting rare and cost something in the region of $280.

    If you google "mikuni tm28" there's quite a lot of info on them, some people swapping them for the VM26, quite a famous performance carb I read a lot about. It looks like this and it's also a plug-in fitting, rather than a flange fitting, which I wrongly assumed was normal on slide carbs.... The only thing is that you'll need a throttle cable. They're also a lot cheaper (around $140):

    Jincheng Monkey JC50Q-7
    Skyteam Dax replica ST110-6
    Zongshen ZS125-43
    Qingqi QM200GY-BA Super Motard
    Qingqi QM110GY
    Reply With Quote  
     

  5. #5  
    C-Moto Senior kingmarty45's Avatar
    Join Date
    Oct 2008
    Location
    Glebe, Sydney. Australia
    Posts
    159
    seriously forchetto, where do you find all these pictures? I love it.
    ---------------------------------------------------
    Kinlon 2008 200GY-SM
    Honda 2003 CB250
    Life is too short for traffic
    Reply With Quote  
     

  6. #6  
    Honorary C-Moto Guru
    Join Date
    Jun 2008
    Location
    Gijon, Asturias, Northern Spain
    Posts
    580
    They don't call me "Honorary C-moto Guru" for nothing, you know...

    I first found out if Suzuki used a different carb on a site that sells spares for Jap bikes. This has lots of spares lists and microfiches:

    Consolidated Motor Spares in Holland.

    You select the year and bike you're looking into and this gives you the OEM part number. I then put that into Google and google images.

    The VM26 I've seen mentioned in a forum as a substitute on older DR200's and it's a very popular carburettor for lots of bikes. Just put VM26 into Google images and it comes up.
    Last edited by forchetto; 04-17-2009 at 07:29 PM.
    Jincheng Monkey JC50Q-7
    Skyteam Dax replica ST110-6
    Zongshen ZS125-43
    Qingqi QM200GY-BA Super Motard
    Qingqi QM110GY
    Reply With Quote  
     

  7. #7  
    C-Moto Noob
    Join Date
    Sep 2008
    Posts
    8
    Hey forchetto,

    Got my carb and exhaust and everything. Bike accelerates much nicer now. You're right, the throttle cable doesnt fit perfectly, but it can be made to rest in place with the rubber cover that comes with it where there is normally a screw fixing. This is a bit of a temporary fix as it can stick slightly, but it has caused me no problems since.

    The bike needed a jet change after the modifications to stop it from spluttering, and although that has now stopped, I still do not have the perfect jet size as it has low power in 5th gear because it still is not jetted correctly.

    The exhaust sounds great and like I say accelerates much quicker.

    Thanks for the advice, sorry I didnt get back sooner!!

    EDIT: I also have noticed I barely have to use my choke any more, whereas before I was using it all the time!
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •