making throttle bodies

[briney]

hi guys, i am looking at efi ing my TT600. it has a twin carb from factory. i have been looking at which throttle bodies to use. i haven't really found any good options yet. one thing i came up with is i have a spread bore holley carb here ( 650 ? ) it's butterflies are 35mm, as opposed to the 28mm std carbs. the spacing is spot on, and i reckon i could mount up a tps pretty easy. i am looking at either welding tubes onto the baseplate,or making mild steel adaptors. can anyone see any glaring faults with this ? the plan is also to mount the injectors in the pipe between the butterflies and engine.

[pommie02]

If you look at any modern throttle bodies, most of them come apart.
you could use two of them from a 4 cylinder set up. and easily modify a throttle linkage. i used the suzuki 750 ones for my bike..ok its a 4 cylinder one but i could see it could be done.
i have seen a few home made ones...and there are some very good idea's.
it might be worth it, but you can pick up a set off ebay for about $100. the injectors alone will cost more than that

[briney]

yes, i agree. i have found some SV650 tb's on ebay. when they turn up i'll have a look at how they fit. i have injectors here i reckon i can use. also a tps and fuel pump, etc etc. thanks for the input.