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HUGE carb problem BAD STARTS
- 00.
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- 1973 kawasaki z1
1973 kawasaki z1
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- toolman5774
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- Always up for a ride!
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Doug
Second Generation Z1 Owner
1975 Z1B 900 w/ 53K miles
K&N Pods
Kerker 4-1
King/Queen LTD Seat w/ Sissy bar and luggage Rack
2009 ZG1400 (Concours non-ABS)
7k
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- happyhubby
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1980 kz550 daily driver
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- bill_wilcox100
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Be prepared to:
-1) Re-seat or replace Carb Holders,
-2) Re-seat or replace Carb Holder Vacuum Caps,
-3) Tighten or replace Carb Holder Bolts with new Allen/Hex Head bolts.
Best of success.
Bill
1977 KZ650-B1 (Stock)
Upgrades:
- Dyna S Electronic Ignition (DS2-2)
- Dyna 3 Ohm Coils (DC1-1)
- Coil Repowering Mod
- Progressive Springs Front & Rear
- Saddlemen Seat Cover
- New Metallic Red Re-Paint & Repro Badges.
Montreal, Canada
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- Patton
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My '75 actually has the same behavior, and always has, except the choke losing effect doesn't happen to me. I generally start it at half-full choke, and get some smoke while it warms up. After about a minute, the smoking will stop, and then it will remain at 3-4k RPM until I drop the choke completely. Not sure on why the choke would have no effect, unless maybe the idle jet or needle is like completely open or something? Then that might explain why there would be no effect with the choke. I'm no expert to carbs myself though, so I could certainly be wrong. :blink:
Might be leaving the choke applied too long which could be fuel-fouling the plugs.
Temporary exhaust smoke after cold start likely results from old hard worn valve stem seals. Usually a harmless condition which could be addressed next time the engine head is removed for some other reason.
Good Luck!
1973 Z1
KZ900 LTD
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1973 kawasaki z1
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