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0 suction on carb 3 & 4 Boots good

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0 suction on carb 3 & 4 Boots good 27 Sep 2006 16:37 #80109

ridgerunner Topic Author Offline User Posts: 11 Thank you received: 2	I have no suction or vacuum or carb 3 & 4 on 79 650 kz. Compression is good 125 and 130. Any ideas? Thanks
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0 suction on carb 3 & 4 Boots good 27 Sep 2006 18:41 #80142

wireman Visitor	are you holding throttle open?seems strange that you have decent compression on those cylinders but wont draw air in when you hold hand over carbs.are the carbs clamped into boots,are boots that bad?
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0 suction on carb 3 & 4 Boots good 27 Sep 2006 19:10 #80154

ridgerunner Topic Author Offline User Posts: 11 Thank you received: 2	Yes, the boots are fine. It's strange to me also. Do you think something could be wrong with the intake valve?
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0 suction on carb 3 & 4 Boots good 27 Sep 2006 19:37 #80166

Bob_79KZ Offline User Posts: 137 Thank you received: 1	Does it have those reed smog valves on top of the exhaust cam covers. If it does, one is stuck open, maybe. Bob Post edited by: Bob_79KZ, at: 2006/09/27 22:39
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0 suction on carb 3 & 4 Boots good 27 Sep 2006 19:54 #80173

ridgerunner Topic Author Offline User Posts: 11 Thank you received: 2	Hey it does have smog valves on top of the covers. I'll try that tomorrow. Hope you are right. By the way I did clamp the vacuum line from the carbs to that valve. Would I still have the problem with the line clamped. Thanks
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0 suction on carb 3 & 4 Boots good 27 Sep 2006 20:11 #80178

Bob_79KZ Offline User Posts: 137 Thank you received: 1	Yep...it would still not have much suction. I had same problem... I blocked off the smog passages and man what a difference. Bob
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0 suction on carb 3 & 4 Boots good 04 Oct 2006 15:30 #81824

ridgerunner Topic Author Offline User Posts: 11 Thank you received: 2	Thanks for the help guys. Taking off the smog stuff did help a lot but I cleaned the carbs again and its running ok now.
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