Hello gents Can anyone point m in the right direction? I have a 1975 Z1 with a 1075cc big bore kit running 29mm smoothbore carbs. The bike has a standard airbox and exhaust but has been ported with street cams installed. The carbs have 120 mains and the needle setting is in the middle. When I got th...

as for the paint well I'll live with it for a while. TBH it's more the positioning of the stripes, the paint itself looks pretty close. Pic below is my old 'B', Paint & Stripes are factory original but was re-lacquered to cover a little fading. Note the bottom stripes rise from the back of the ...

Cheer guys, the bike has 29mm smoothbore carbs, the rest of the bike is orginal just the exhaust and airbox and chain guard are pattern parts. The bikes date is 1/75 and all the date codes are 12/74. I'll look for some original carbs as for the paint well I'll live with it for a while. I only paid $...

Here's a picture of my 1975 Z1B-900 all date codes are right. I got it for a bargain and have done a small amount of work, exhaust, chain guard, airbox and detailing, very low mileage (4600k).
Any ideas on a value?

Many thanks

I'm guessing the bike has got KA627SL sleeves which are drop in for a 1015cc cylinder.
Does anyone know the standard O.D. of them (standard 1015cc sleeves)?
The 903cc barrel I have came without liners and I'm not sure if the casting has been bore out already.

Great that makes sense, next question can you fit the 1075cc wiseco sleeves in the 903cc casting? The casting must be getting pretty thin? I see wiseco list the same sleeve for both

Hello can anyone please help, I have a 1975 Z1-B with the original engine but the previous owner used a 1075cc wisco kit with a Z1000 (1015cc) barrel. The bike has only done a few hundred miles on this rebuild. I want to change the barrel back to the original 903cc casting (which I have). Will the s...

Yeah I figured that was the case... hmm better handling or a hot engine?

Hello all I have a 1975 Z1B-900 with what I believe is a original kawasaki oil cooler? part number B006109D. My problem is that I also have a NHK steering damper, but I can't seem to fit it as it fouls the oil cooler when turning. Any suggestions on how these were supposed to work together or if you...