C
I have a 79 Yahama Enticer 250 with a CDX38 keihin carb, it is a butterfly valve type carb with an intagrated fuel pump. I can't find jets for it, and it runs but not very well at the higher altitude. It came from Michigan and now we ride in the Little Belt Mountains in Montana. What I need to know is what kind of carb to replace it with, we don't need it to be a speed racer just something for the first time rider and grandkids. Space is limited, engine interface bore is 38mm or 1 1/2 inches, intake bore is 50mm or 1 15/16 inches, the length is 89mm or 3 1/2 inches, intake manifold bolt center to center is 2 1/4 inches. I have to use the original intake manifold, because it has a funny tilt and angle. Is there another carb out there that I can use or maybe something like the dial-a-jet to lean this thing out? If I get a different carb I will probably need a fuel pump as well. Does anyone have a carb and pump that will work and/or can you tell me what I need to look for as far as compatability? Thanks