KZ200 Gas Cap Vent Issue

I suspect that my vent is not working properly. I made a previous post about an issue that I am having with my 78' KZ200. After the engine dies, I can hear hissing coming from the gas cap. I disassembled the vent and noticed that there is a fiber disk inside the vent assembly. It appears to be swollen and distorted. I suspect that this is causing too much vacum and starving the carb. I can not find a replacement part without buying a whole new gas cap assembly on ebay. Any suggestions will be greatly appreciated. This site has already been a great help. Thanks.

If you’re talking about the brown piece that the arrow is pointing to in the picture, Kawasaki did not sell that as a separate part. You may end up getting a cap with scratches or bad chrome but that has that piece in good shape from eBay or a bike breaker, or you may be able to find suitable material to make one. Lots of Kawasakis used that same cap (see list below) so finding a used one should be fairly easy. Ed



H1-D (1973)
H1-E (1974)
H1-F (1975)
KH250-A5 (1976)
KH400-A3 (1976)
KH400-A4 (1977)
KH400-A5 (1978)
KH500-A8 (1976)
KZ1000-A1 (KZ1000) (1977)
KZ1000-A2 (KZ1000) (1978)
KZ1000-A2A (KZ1000) (1978)
KZ1000-B1 (KZ1000 LTD) (1977)
KZ1000-B2 (KZ1000 LTD) (1978)
KZ1000-B3 (KZ1000 LTD) (1979)
KZ1000-B4 (LTD) (1980)
KZ1000-G1 (Classic) (1980)
KZ200-A1 (1978)
KZ200-A1A (1978)
KZ200-A2 (1979)
KZ400-A1 (1977)
KZ400-A2 (1978)
KZ400-D3 (1976)
KZ400-D4 (1977)
KZ400-S2 (Special) (1976)
KZ400-S3 (Special) (1977)
KZ650-B1 (1977)
KZ650-B2 (1978)
KZ650-B2A (1978)
KZ650-B3 (1979)
KZ650-C1 (Custom) (1977)
KZ650-C2 (Custom) (1978)
KZ650-C3 (Custom) (1979)
KZ650-F1 (1980)
KZ750-B1 (1976)
KZ750-B2 (1977)
KZ750-B3 (1978)
KZ750-B4 (1979)
KZ750-G1 (LTD II) (1980)
KZ900-A4 (1976)
KZ900-A5 (1977)
KZ900-B1 (LTD) (1976)
S1-A (Mach I) (1973)
S1-B (Mach I) (1974)
S1-C (Mach I) (1975)

So I guess that just eliminating that part will result in too little vacum?

I'd try the salvage yards first:
Motorcycle Salvage Companies
www.cycle-salvage.com
www.motorcycle-recycle-center.com/
www.newrivercyclesalvage.com/index.html
www.bornagainbikes.net/
www.motolane.com/
www.williescycle.com/

Iv e got gas in crab 2 and 3 but no gas to 1 and 4 could this be a vent problem carbs are clean

I just had a vent problem yesterday.
Try running it with the cap open.
That's how I got home, luckily the tank was not full.