Help with accel pump

I realize this has pobably been posted several times, but cannot find my answer. On other forums they say that a '77 kz650 shouldnt have accel pump carbs, but i have 2 now that are like this. Ive looked at Kawasaki micro fiche on the internet and they show that is should have pump. My question is this: if they are stock how do i get a new diaphragm, if not how do i identify what year the carbs came from?

There are some very sharp people on this forum. I'm not one of them. :blush: Please post some pictures of your carburetors so that the smart people might tell you what you have.

A photo may help, just to make sure what carburetors you have.

Most KZ650s came w VM24 carbs. Z1Enterprises.com sells a K&L accelerator pump rebuild kit that includes the ball, weight, clip, & spring. The diaphragm may still be available from the Kaw dealer - I don't know if it comes as a kit or just the diaphragm.

The 1977 KZ650 models did not come with an accelerator pump. If yours has an accelerator pump it is from a later model. Check to see if it also has the vacuum port near the vent port on carb #2. The 1977 KZ650's did not have that either because they came with manual petcocks. Does your bike have a manual or vacuum actuated petcock? As martin suggested, pictures of the carbs would help. Are you positive your bike is a 1977? Can you post some pictures of the bike or the VIN (minus the last 2 numbers) stamped on the steering neck? Ed

Weelll, once again I prove I shouldn't be playing with tools. Double checked VIN's and found both are '79's. Sorry, but thanks for the posts!