Quote:
Originally Posted by Douglass
|
The first one is the correct bolt on option. That is the same Mikuni a lot of us Hawk owners switch to.
The second one you linked is a very different carburetor. It is a true 30mm smooth bore round slide, which means it has a larger throttle area. I have one of those exact carbs waiting to go on my Hawk once I install my ported cylinder head. It CAN be bolted to your engine with the use of a CRF230F intake, but the intake will need to be ported and some trimming to the rubber in order to make it work. I have a few pictures of this combination here -
http://chinariders.net/showpost.php?...&postcount=308
Without some more serious engine work, I would say that the VM30-83 would not be a good idea for your bike. The VM26 is more than enough carb to support upwards of 20hp while having a good powerband and throttle response.
Now the first carb you linked isn't really any different from the standard Keihin clone that comes on most of these bikes. They have the same 30mm bore, and 26mm choke. They both utilize the same plate style choke, and if you sit them side by side you would be hard pressed to tell a difference. There is no performance gain from that carb, and the only reason many of us even use the Mikuni is because our stock Hawk carbs have a goofy pilot jet that can't be changed, and a needle with no tuning adjustments.
Just my 2 cents, but if your stock carb can be tuned - i.e. you can change the pilot jet, then I would say tune the one you have.
If you would rather just get the Mikuni, then I can give you some rough jet sizing suggestions based on my experience with the CG250, but it will still likely need a slightly different jetting setup.
Before I can really make any suggestions though, I need to know your altitude.