What carb kit - 750 carbs onto 1100

[Watto]

G'day Fellas

have got a set of 1991 gsxr 750 38mm carbs (us spec) that I'm looking to cleanup and fit to a 1100 slabbie motor - motor's basically stock with 4 into 1 on it and K&N dual filters (1 filter covers 2 carbs)

have read some of the posts on carb kits after searching thru here but after some help/opinions as not really clear to me

as I understand it there are basically two choices - dynojet or factorypro

question is does anyone have any recommendations on the pro or cons on either and if you've done a similar swap, ideas on carb base settings (main/pilot jet sizes etc) - saw dynojet do kits in 3 different stages and as my setup is pretty much stock maybe only need to be looking at stage 1 or possibly 2?

would it be worth putting on a ignition advancer or modifying the stock one as seen/read 4-5 deg advance won't hurt em too much

thanks in advance fellas

[kevkatana]

First you'll need the inlet manifolds for the 38's. As for kits I prefer to use standard(Mikuni)needles and jets. Had a few dramas with after market stuff.
Put 32.5 pilot jets and start at 150 mains. Might be a good idea to get new 1100 needles and emulsion tubes.

[Watto]

yeah thought about the manifolds kev - have got a set of 38's and 40's for em amongst my boxes of bits

[hooligan]

I've done the same thing. 135 mains, and i think the needles from a 96(ish)model 750. I originally had 147.5 mains in it(out of the original 34mm carbs) and it was a fucking animal at about 9000 rpm, but a P.O.S. at anything less. It was also fouling plugs in 30 mins of street riding. I took it to harley at RB racing who figured out the jetting.
I've got a factory pro kit for it if you're interested.

[Watto]

Cheers Chris - have pm'd ya about the kit

[Watto]

ok fellas

the oldies decided to 'sponsor' me a factory pro kit to upgrade the 38mm carbs to suit the 1100 - god bless 'em :D

is it a good idea to change the emulsion tubes at the same time or can I just fit the kit with the current ones?

if changing the tubes is recommended, any suggestion on preferred suppliers at all and ideas on cost?

Cheers
Watto

[Blackkat]

check the hole were the needle goes through for wear.
if it's not round, replace them with new GSXR ones or factory pro ones from the states $96US plus post.

[Watto]

cheers ac

spoke with Marc at factory pro and he says can't do the 38mm tubes only 36's