Smoking issue - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 12 Old 03-23-2015, 08:37 AM Thread Starter
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Smoking issue

Hello I'm new to the forum and to owning a KLR. I have a '98 and it seems to be running really rich. It's a little hard to start and it blows a bit of black smoke. I'm assuming a good cleaning and a possible rebuild for the carb should fix it. Any thoughts?
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post #2 of 12 Old 03-23-2015, 09:31 AM
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Start with a valve adjustment. The valves tend to recess into the head over time, closing up the clearance between the cams and the ends of the valves.

When that clearance gets too tight the bike beomes hard to start.

It probabaly needs it anyway, so not a bad place to start. Once it's running all OK you might find that a dose or two of Seafoam will clean the carb and such pretty well.

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post #3 of 12 Old 03-23-2015, 09:47 AM Thread Starter
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Thanks for the advice I'll check that. I just bought it so I haven't started it too many times yet but if you use the choke and touch the throttle at all it floods and take a lot of trying to start. That added to the sooty smoke I'm assuming I need carb work as well.
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post #4 of 12 Old 03-23-2015, 10:37 AM
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Trevpei,
I'll suggest that while you are checking valve tappet clearances, which Need to be Set to the Upper end of Specs for best starting/longest maintenance interval, that you Inspect the Plastic choke cable attachment 'nut'. Before Pulling the Entire Carburator!

The plastic 'nut' gets broken Quite Often, causing a rich run condition.

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post #5 of 12 Old 03-23-2015, 11:00 AM Thread Starter
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Thanks I'll check that too. Is the nut on the carb end of the choke cable?
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post #6 of 12 Old 03-23-2015, 03:15 PM
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Quote:
Originally Posted by Trevpei View Post
Thanks I'll check that too. Is the nut on the carb end of the choke cable?
Yes it is. Don't try to turn the carb with it attached.

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post #7 of 12 Old 03-23-2015, 04:11 PM Thread Starter
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Will do. Thanks.
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post #8 of 12 Old 03-24-2015, 12:40 AM
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If you do turn the carb and need a new "nut", it can be purchased separately for about $5.00 as Arctic Cat 5507-025.

Anyone know why people call it a "Nut"? Nuts have internal threads....
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post #9 of 12 Old 03-24-2015, 10:45 AM
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Normk,
Because it has a hexagon outer shape and a hole thru the middle.

And it is easier to say (quicker to type) than, Cap-Starter Plunger or Enricher Cable Ferrell. What is Arctic Cats terminology for it?

And I used the common term, even tho I knew you would correct me.

How many times would we all like to type, Engine Balancer Chain Adjuster Locking Lever?
And my language / grammar and punctuation has always been poor.

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post #10 of 12 Old 03-24-2015, 01:54 PM
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They call it a "cap" which might be less indicative of its use than "nut". ;-)

http://www.arcticcatpartspitstop.com...retor-assembly

I had someone comment to the effect, "You and pdwestman seem to get on one another's nerves." I'm still chuckling, as from my side, there's nothing more fun than mild, everyone knows it's just kidding in fun, banter with someone I like and respect. Don't take that as license to use incorrect terminology though as we'll be right on you!
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