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Warm up
- nickleo373
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04 Apr 2014 14:43 #627861
by nickleo373
1981 KZ550C LTD
"If you ain't first, you're last"
Warm up was created by nickleo373
Hey everyone
I was wondering how long a bike usually has to warm up before it can come off choke. I usually let my bike idle for 5 to 10 minutes until it can come almost completely off the choke but it takes another 15 minutes of riding before it can come fully off the choke. I've put the bike together myself so I don't know what is a "normal amount of time"
I was wondering how long a bike usually has to warm up before it can come off choke. I usually let my bike idle for 5 to 10 minutes until it can come almost completely off the choke but it takes another 15 minutes of riding before it can come fully off the choke. I've put the bike together myself so I don't know what is a "normal amount of time"
1981 KZ550C LTD
"If you ain't first, you're last"
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- 74ullc
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04 Apr 2014 14:51 #627864
by 74ullc
Gulf Coast, Texas
1977 KZ1000LTD
1984 VF700F
Replied by 74ullc on topic Warm up
Probably depends on the weather, temp, altitude, density altitude.....but.....when the weather is warm (70 and up) I can have mine off choke almost right away. Less than a minute for sure. I live at sea level.
But this is after doing a lot of work to get the bike running this well. When I first got it I had to choke the thing like you are saying.
Gotta check your carb holders for leaks, make sure the carbs are clean and setup correctly, check timing, check ignition system, go thru wiring to get good voltage to coils, check advancer, check valves....and on and on.
But this is after doing a lot of work to get the bike running this well. When I first got it I had to choke the thing like you are saying.
Gotta check your carb holders for leaks, make sure the carbs are clean and setup correctly, check timing, check ignition system, go thru wiring to get good voltage to coils, check advancer, check valves....and on and on.
Gulf Coast, Texas
1977 KZ1000LTD
1984 VF700F
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- 650ed
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04 Apr 2014 15:13 #627869
by 650ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Replied by 650ed on topic Warm up
As stated, check the carb holders for leaks. When mine needed to be replaced the bike needed the choke longer than it did I after replaced them. I use the choke to start the bike when cold; then I can shut the choke off after about a minute. Let me know if you need the carb holder test instructions. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- nickleo373
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04 Apr 2014 16:51 #627883
by nickleo373
1981 KZ550C LTD
"If you ain't first, you're last"
Replied by nickleo373 on topic Warm up
Thanks for the replies. I'll do a test for leaks at the carb holders. I remember when I was disassembling the bike when I first bought it, the holders were way overtightened. I'll have to look on amazon for JIS screws to try to avoid stripping the heads
1981 KZ550C LTD
"If you ain't first, you're last"
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- bountyhunter
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04 Apr 2014 23:52 #627923
by bountyhunter
1979 KZ-750 Twin
Replied by bountyhunter on topic Warm up
A minute or two tops if everything is set up right.
1979 KZ-750 Twin
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- toad
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05 Apr 2014 06:15 #627930
by toad
78 kz 1000
wiesco 1015
29mm smoothbores
gs1100 swingarm
gsxr rear
Replied by toad on topic Warm up
check for a leak and is your pilot jet big enough?
78 kz 1000
wiesco 1015
29mm smoothbores
gs1100 swingarm
gsxr rear
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- nickleo373
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05 Apr 2014 07:38 #627939
by nickleo373
1981 KZ550C LTD
"If you ain't first, you're last"
Replied by nickleo373 on topic Warm up
I'm going to check for air leaks later today. Jets, airbox, and exhaust are all stock and the carbs have been completely gone through
1981 KZ550C LTD
"If you ain't first, you're last"
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- martin_csr
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05 Apr 2014 07:47 #627941
by martin_csr
Replied by martin_csr on topic Warm up
Just an FYI... the owner's manual should have a Starting the Engine section, and it may account for the various operating conditions (Ie, ambient temps, engine hot or cold, that sort of thing). I use it as a guide - if my bike doesn't start & warm up as indicated in the om, I know something needs to be checked.
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- nickleo373
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05 Apr 2014 10:51 #627963
by nickleo373
1981 KZ550C LTD
"If you ain't first, you're last"
Replied by nickleo373 on topic Warm up
Thanks Martin_csr. I'll see what it says to do in the manual
1981 KZ550C LTD
"If you ain't first, you're last"
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- 78z1Joe
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- My man cave is my garage....
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05 Apr 2014 16:52 #627983
by 78z1Joe
1978 KZ 1000
1982 GS 300 training bike
Previous Rides...
75 RD 350
72 CB 500 Four
72 SL 125
71 CT 70
69 3 1/2 HP mini bike
Replied by 78z1Joe on topic Warm up
Also, check the carburetor linkage as well. The screws with the lock-tite can loosen on a 30 year old motorcycle which will allow the carbs to be out of synch. Goofy idle or failure to return to idle with the throttle closed are common symptoms. Good luck, you can do it. Let us know what you find.
1978 KZ 1000
1982 GS 300 training bike
Previous Rides...
75 RD 350
72 CB 500 Four
72 SL 125
71 CT 70
69 3 1/2 HP mini bike
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- loudhvx
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05 Apr 2014 19:02 #627993
by loudhvx
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Replied by loudhvx on topic Warm up
The 550's using TK22 carbs were jetted pretty lean. On a 50 degree day, 15 minutes with choke on is not abnormal.
Part of the problem is balancing the fast-idle cam with the choke plate position, You can do a mod to make it adjustable. Then you can set it for different seasons to make the bike a little more rideable as it warms up.
home.comcast.net/~loudgpz/GPZweb/TK22mai...astIdleScrewMod.html
Part of the problem is balancing the fast-idle cam with the choke plate position, You can do a mod to make it adjustable. Then you can set it for different seasons to make the bike a little more rideable as it warms up.
home.comcast.net/~loudgpz/GPZweb/TK22mai...astIdleScrewMod.html
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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- nickleo373
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05 Apr 2014 19:18 - 05 Apr 2014 19:19 #627998
by nickleo373
1981 KZ550C LTD
"If you ain't first, you're last"
Replied by nickleo373 on topic Warm up
Thanks for the link. I noticed my bike already has something similar to that mod however it looks like it came stock? Not sure if it's the same thing :blink:
1981 KZ550C LTD
"If you ain't first, you're last"
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Last edit: 05 Apr 2014 19:19 by nickleo373.
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