Carb swap

[jcos]

So the GSXR carbs worked. The bike runs beautiful now, except for the nasty fuel leak at the inlet Ts. Need to do a little work on the Ts and some new seals should fix it. Pic 1 you can see that the inner carbs have the same spacing that they do on the GSXR carbs, gold bracket on bottom. The outer carbs are closer together though. This is why i milled the fuel inlets and vents flush, originally they stuck out about 3/8". Pic 2 you can see how much longer the shaft was, they add the aluminum spacer to make up for the spacing on the outer carbs. Pic 3 you can see the difference in bore size even though they both came off of a 600cc motor, and thats why i had to lengthin the slots in the Kat shafts. Sounds easy but i think i have a total of about 10-12 hours worth of work in them. Also noticed a power increase with the larger GSXR carbs, and i havent even syched em with the gauges yet. Tools used for job- Phillips head screwdriver, regular screw driver, drill press, carbide cutting bit chucked up in the drill press and a very steady hand. Oh yeah almost forgot the most important one Beer!!

[scottynoface]

Looks good. Nice job

[Wild-Bill]

Well, of course there was beer. All the best mods involve beer somewhere!

Looks great. What about the torque? In theory, larger carbs should cost you torque at low rpms and gain HP at high rpms. Is it noticeable?

[BlackKat Joe]

Sweet mod!

[KAT TOY]

Looks good. Nice job

+1

[jcos]

carb swap

Well, of course there was beer. All the best mods involve beer somewhere!

Looks great. What about the torque? In theory, larger carbs should cost you torque at low rpms and gain HP at high rpms. Is it noticeable?

There was a slight difference but i am planning on changing the rear sprocket from a 41 tooth to a 45. I should gain it back there. Also plan on putting a new exhaust system on. Found a full exhaust system with a 4 into 1 header on ebay. I bid on it lastnight and won it for $10.00 cant believe it. Ill let you all now how that goes.