82 GPz750 - Idle Mixture and Carb Sync

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82 GPz750 - Idle Mixture and Carb Sync

20 Oct 2010 05:07
#407712
Now that I've gotten rid of my really high idle problem, I have a question. The bike seems cold-blooded and takes a while to warmup. I have to keep it on 1/2 choke for awhile. Once running I have it idling around 1,100. It runs pretty strong when I'm riding it, but the idle doesn't drop as much as I think it should between shifts (just doesn't seem crisp, would be best way to describe it.)

I bench synced the carbs and idle mixture is 2 turns out which is what they were when I got the bike. I'm planning to sync the carbs on the bike. Should I do that first before adjusting the idle mixture screws? When I adjust the mixture, I imagine its just finding the 1/2 way mark between when the engine starts to race and when it starts to stumble?

Thanks
Nick
1982 Kawasaki KZ1000-K2

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Re: 82 GPz750 - Idle Mixture and Carb Sync

20 Oct 2010 19:48
#407893
nicksorg wrote:
Now that I've gotten rid of my really high idle problem, I have a question. The bike seems cold-blooded and takes a while to warmup. I have to keep it on 1/2 choke for awhile. Once running I have it idling around 1,100. It runs pretty strong when I'm riding it, but the idle doesn't drop as much as I think it should between shifts (just doesn't seem crisp, would be best way to describe it.)

I bench synced the carbs and idle mixture is 2 turns out which is what they were when I got the bike. I'm planning to sync the carbs on the bike. Should I do that first before adjusting the idle mixture screws? When I adjust the mixture, I imagine its just finding the 1/2 way mark between when the engine starts to race and when it starts to stumble?

Thanks
Nick

Sounds just a tad lean yet.
When your getting the right amount of fuel at idle
and carbs are synced and idle set it will come back to idle fairly quickly.
Try 1/2 turn out.
Them sync the carbs.
If that is not enough go up one on the pilot.
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


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Re: 82 GPz750 - Idle Mixture and Carb Sync

22 Oct 2010 11:31
#408264
I haven't picked up a carb sync tool yet, but I tried your suggestion of a 1/2 turn out and the bike runs much better. I start with full enricher, then quickly down to 1/2 and then right to idle.
Thanks
Nick
1982 Kawasaki KZ1000-K2

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