05' bruteforce, #1 popping through carb

lnsmman58 · 2 Weeks Ago

Hey guys I appreciate any imput I can get here. What is going on is I'm get a slight backfire through #1 carb, only at a idle. I have checked the valves regularly. It's seems to not be there right when it starts, but as soon as she gets a little heat on her she starts to pop a little. It's not constant at all, but it is there. Do you think my valves are burnt or can there be something else causing it? Again I appreciate all your help VERY much!

Scott

kawpaul · 2 Weeks Ago

Sounds to me like a valve issue. Could be carbon buildup on the valve or valve stem, or a burnt or warped valve. Have you done a compression test on it?

Run a compression check and if it is lower than the other cylinder you know it is most likely in the valvetrain.

joshp1840 · 1 Week Ago

is it a slight back fire though the carbs with the air box on or off? also go to your kawasaki dealer and get a bottle of the carbon clean pour it in to a spray bottle. take your air filter out and fog the front and rear cyclenders one at a time so that u can see the smoke comin out of the exhaust. then change your plugs there ngk cr7e. see how it runs after that i have had good luck doing that. make sure u use the whole bottle and turn your idle up so it does not stall.

2 Weeks Ago	#1 (permalink)
lnsmman58 Newbie Join Date: Aug 2009 Posts: 5	05' bruteforce, #1 popping through carb Hey guys I appreciate any imput I can get here. What is going on is I'm get a slight backfire through #1 carb, only at a idle. I have checked the valves regularly. It's seems to not be there right when it starts, but as soon as she gets a little heat on her she starts to pop a little. It's not constant at all, but it is there. Do you think my valves are burnt or can there be something else causing it? Again I appreciate all your help VERY much! Scott

2 Weeks Ago	#2 (permalink)
kawpaul itching to ride BTK Expert Join Date: Aug 2009 Location: TN Posts: 711	Sounds to me like a valve issue. Could be carbon buildup on the valve or valve stem, or a burnt or warped valve. Have you done a compression test on it? Run a compression check and if it is lower than the other cylinder you know it is most likely in the valvetrain. __________________ 1983 gpz 750 .....the wait is over

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1 Week Ago	#3 (permalink)
joshp1840 Newbie Join Date: Jun 2009 Location: New York Posts: 22	is it a slight back fire though the carbs with the air box on or off? also go to your kawasaki dealer and get a bottle of the carbon clean pour it in to a spray bottle. take your air filter out and fog the front and rear cyclenders one at a time so that u can see the smoke comin out of the exhaust. then change your plugs there ngk cr7e. see how it runs after that i have had good luck doing that. make sure u use the whole bottle and turn your idle up so it does not stall.

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