Rebuild Accelerator pump '79 KZ650SR or make it walk the plank?

Carbs from my 1979 KZ650SR needed some attention and the accelerator pump internals does not look great.

Kawasaki suggests that
43028-1010
43028-1012

Are no longer produced. Suggestions welcome. I guess mine are not falling apart and could be re-used. Wasn't there a thread once here on how the acc pump on these old carbs was best made to walk the plant or blocked off?

The bike is coming together. I look forward to putting a lot of miles on it this summer. Those tall wheels with modern (ish) rubber are 100% wonderful to ride on.





 

I guess the diaphrams are the only real "wear and tear" part, if the plunger rod on the diaphram has a "wear" ridge causing a tight spot in operation, what we used to do in the car world is rotate them (the wear only happens on the thrust side)

Thanks, Wookie.

Looks like K&L makes a kit. Ever used it?

K&L 18-2903

Do you mind if I ask you which tires are you using on your 650?

chopper1963 wrote:

Thanks, Wookie.

Looks like K&L makes a kit. Ever used it?

K&L 18-2903

No I haven't, sorry 

Kofla wrote:

Do you mind if I ask you which tires are you using on your 650?

Love the new avatar Kofla, you seem to have this cartoon gig nailed down

Bridgestone BT46s. I used BT45s previously.

 

Thank you! 

chopper1963 wrote:

... Looks like K&L makes a kit. Ever used it? K&L 18-2903

yes. also. k&l petcock diaphragm, fork seals, caliper kit, electrical connectors, etc. never had a problem. made in Japan.

chopper1963 wrote:

Suggestions welcome. I guess mine are not falling apart and could be re-used. Wasn't there a thread once here on how the acc pump on these old carbs was best made to walk the plant or blocked off?

Just remove the actuator rod and leave everything else as is. You may want to up your jetting to match non pumper VM24's.