Z1OwnersClub GB

Anyone fitted 29mm gsxr slabside carbs to a Zed, mine is 1045, Andrew's cams with flowed head, I maybe getting 2 sets in a deal today

Not fitted them to a Z, but be aware there are two different types on GSXR flatslides, JDM ones don't have accelerator pumps, rest of the world do, there are a lot of JDM sets knocking about as people want the ones with pumps.
Slides wear on them and they get rattly.
They can be bored out to 33mm, but 31mm is more sensible, at 29mm they'll flow enough air for 100bhp.

Julian_Boolean wrote:Not fitted them to a Z, but be aware there are two different types on GSXR flatslides, JDM ones don't have accelerator pumps, rest of the world do, there are a lot of JDM sets knocking about as people want the ones with pumps.
Slides wear on them and they get rattly.
They can be bored out to 33mm, but 31mm is more sensible, at 29mm they'll flow enough air for 100bhp.

Will have a look, got a set on the bike and a set in the box of bits

BTW the JDM ones without pumps work fine, I had a 1985 JDM GSXR 750 that obviously came with JDM carbs, I changed them for a UK set, the different wasn't massive, the throttle response was a bit better, top speed was the same.

There is one set on the bike and one in the box

Usually they come out sideways not upside down

The other set

Suzuki boys go bandy for them, they are a good upgrade for the GS1000, but they can fit a CV carb head, which has the right size inlet rubbers and bigger inlet tracts.

You need oversize rubbers on a Z head, because we never went to CV carbs until the J motor. Still doable.

needaz1100r wrote:Suzuki boys go bandy for them, they are a good upgrade for the GS1000, but they can fit a CV carb head, which has the right size inlet rubbers and bigger inlet tracts.

You need oversize rubbers on a Z head, because we never went to CV carbs until the J motor. Still doable.

My head has been ported and it had 28mm Zed carbs on previously

Swirl wrote:

needaz1100r wrote:Suzuki boys go bandy for them, they are a good upgrade for the GS1000, but they can fit a CV carb head, which has the right size inlet rubbers and bigger inlet tracts.

You need oversize rubbers on a Z head, because we never went to CV carbs until the J motor. Still doable.

My head has been ported and it had 28mm Zed carbs on previously

28mm zed carbs use the same rubbers as all zed carbs, 26mm and 28mm and the 29mm smoothbores.

Those GSXR carbs need bigger rubbers, which are available. Also, the spacing is not quite right, they need some persuasion to go in.

Personally, I'd be selling both sets of those carbs and using the money to buy a set of 29mm smoothbores.

Swirl wrote:The other set

I think that pipe across the bottom between the float bowls is the accelerator pump feed pipe.

I've 3 people interested in 2 sets of carbs at the moment, so they should go

Swirl wrote:I've 3 people interested in 2 sets of carbs at the moment, so they should go

There are TM29s and TM33s, and judging by the wall thickness of that set in the picture they could be TM33s, make sure you get good money for those.

They look like the standard GSXR VM29SS carbs, they're 29mm on one side of the slide and 33mm on the other, I can't remember which way round.

Julian_Boolean wrote:They look like the standard GSXR VM29SS carbs, they're 29mm on one side of the slide and 33mm on the other, I can't remember which way round.

They sit in the same rubbers as standard 34mm so I was thinking it was the engine side, but you are right, they narrow a lot at the slide and that's where the 29mm comes from.