running lean - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 5 (permalink) Old 06-27-2012, 10:42 PM Thread Starter
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running lean

well judging by my exhaust ( the inside is white) im going to say my rear cylinder is running lean .. so off come the carbs it idles and runs pretty darn good no real problems ( well it doesnt seem to have the a$$ in the big end like it did .... like up past 90mph 6K+ rpms ) it also seems to run hotter like cruising on the hwy in 80+ degree shes runs almost half way on the gauge the needle almost touching the left side of the thermoter symbol when on the hwy for more then 20 mins . so what am i looking for the carbs were cleaned 2 years ago. i run sea foam regularly there a jet that may be partially plugged when im WTFO or cruising on the hwy ? i dont want to turn my new pipes gold lol and i dont want to start melting stuff down yet so i guess im looking for ideas on what to look for

2010' voyager

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1987 kawasaki vulcan 750 SOLD

1985 kawasaki vulcan 700 parts bike maybe
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post #2 of 5 (permalink) Old 06-28-2012, 12:17 AM
Crap, I WAS in 5th gear.
 
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Your plugs are the best (easy) indicator of mixture. Compare the front and rear ones and report back. You may just need a shim or two under your main needle.
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post #3 of 5 (permalink) Old 06-28-2012, 02:58 PM Thread Starter
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the front pipe is bluing up near the cylinder head it has soot ( black inside ) the rear pipe inside is white . the only reason i pulled the pipes is i bought cruizers i have never seen the inside of a exhaust pipe white ....

2010' voyager

2005 1600 nomad sold

1987 kawasaki vulcan 750 SOLD

1985 kawasaki vulcan 700 parts bike maybe
lots of hand guns
3 cagers doors kicked in
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post #4 of 5 (permalink) Old 06-28-2012, 03:54 PM
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Quote:
Originally Posted by centurynick View Post
the front pipe is bluing up near the cylinder head it has soot ( black inside ) the rear pipe inside is white . the only reason i pulled the pipes is i bought cruizers i have never seen the inside of a exhaust pipe white ....
Bluing near the head is a lean condition. Rear pipe white inside also lean. The rear pipe white is a symptom of the carb getting too much AIR. Restrict your air filters a little and see if it makes a difference.

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post #5 of 5 (permalink) Old 06-28-2012, 09:47 PM Thread Starter
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i found the left ears air filter was dry and a big chunk was missing this is probably a big chunk of my lean condition

2010' voyager

2005 1600 nomad sold

1987 kawasaki vulcan 750 SOLD

1985 kawasaki vulcan 700 parts bike maybe
lots of hand guns
3 cagers doors kicked in
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