help with smoking

concrete kawboy · 05-19-2009

i have a 1980 kz1000. the bike has white smoke coming out of the exhaust when it is warm. it has pod filters and a kerker 4-1 header with no baffles. i dont know if it has been jetted or not. also it has the low emissions head and the valve cover is leaking exhaust around the #4 emission port. could the smoking just be that the carbs need to be jetted, or do you think it is rings/ valves. the bike has 30,000 miles on it. it runs pretty good, but it seems to stumble on hard excelleration and at high rpms. hope someone has some info for me. thanx.

Lawn Masters · 05-19-2009

was it sitting for awhile? if so its probably conensation that needs to burn off and thats it. otherwise, what does the smoke smell like? are you losing oil anywhere?

alternately, take the cigarettes away from the bike.

antiq · 05-19-2009

If it's smoking gray when warmed it's been jetted a bit bigger than needed. Blue smoke is oil. Gray or black is a rich condition. Others here can be more specific on what jetting to use for the setup you have. You should probably mention which carbs you have as well.

05-19-2009	#1 (permalink)
concrete kawboy Newbie Join Date: Apr 2009 Posts: 15	help with smoking i have a 1980 kz1000. the bike has white smoke coming out of the exhaust when it is warm. it has pod filters and a kerker 4-1 header with no baffles. i dont know if it has been jetted or not. also it has the low emissions head and the valve cover is leaking exhaust around the #4 emission port. could the smoking just be that the carbs need to be jetted, or do you think it is rings/ valves. the bike has 30,000 miles on it. it runs pretty good, but it seems to stumble on hard excelleration and at high rpms. hope someone has some info for me. thanx.

05-19-2009	#2 (permalink)
Lawn Masters hates stupidity BTK Expert Join Date: Mar 2006 Location: New Port Richey FL Posts: 2,108	was it sitting for awhile? if so its probably conensation that needs to burn off and thats it. otherwise, what does the smoke smell like? are you losing oil anywhere? alternately, take the cigarettes away from the bike. __________________ ZedX 1k owner. henceforth The bike shall be Zed.

05-19-2009	#3 (permalink)
antiq Vintage bike addict BTK Expert Join Date: Aug 2007 Location: I live in eastern ohio Posts: 4,802	If it's smoking gray when warmed it's been jetted a bit bigger than needed. Blue smoke is oil. Gray or black is a rich condition. Others here can be more specific on what jetting to use for the setup you have. You should probably mention which carbs you have as well. __________________ 82 KZ750LTD, 84 Virago 700, 85 Vulcan 700.78 KZ750 twin,82 KZ650, 77 KZ650, 75 CB200T,Vince

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