Washer not fitting, correct? - Kawasaki KLR 650 Forum
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post #1 of 5 Old 03-04-2017, 06:47 PM Thread Starter
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Join Date: Feb 2017
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Washer not fitting, correct?

I bought 3 #4 washers and I've tried all but still get the washer sitting on the outside of the legs of the "white plastic piece". Surely that can't be right. Shouldn't it slide all the way with the needle? I wish I could post pictures but I'm not at 15 posts...
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post #2 of 5 Old 03-04-2017, 08:42 PM
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Location: Lander, Wyoming
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Quote:
Originally Posted by Jhawker23 View Post
I bought 3 #4 washers and I've tried all but still get the washer sitting on the outside of the legs of the "white plastic piece". Surely that can't be right. Shouldn't it slide all the way with the needle? I wish I could post pictures but I'm not at 15 posts...
Jhawker,
At 7000 ft home altitude I'll suggest that you should NOT install any spacer washers on the mid-range needle.
Change the main jet smaller ONLY!

Then drill four 1inch holes in the straight across portion of the air box under the seat.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #3 of 5 Old 03-04-2017, 09:11 PM Thread Starter
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Quote:
Originally Posted by pdwestman View Post
Jhawker,
At 7000 ft home altitude I'll suggest that you should NOT install any spacer washers on the mid-range needle.
Change the main jet smaller ONLY!

Then drill four 1inch holes in the straight across portion of the air box under the seat.
I've already drilled out the slide...

pd, do you live at high elevation? What size of jet are you suggesting?
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post #4 of 5 Old 03-05-2017, 05:27 PM
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Location: Lander, Wyoming
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Quote:
Originally Posted by Jhawker23 View Post
I've already drilled out the slide...

pd, do you live at high elevation? What size of jet are you suggesting?
Drilling the vacuum hole at the front edge of the slide only quickens the response time of the slide, 'ever so slightly'. That has nothing to do with the richness / lean-ness of the mid range needle.

Lander, WY is at 5357 ft and from here I mostly go UP. Including up to Oury, Silverton, Red Mountain pass, Black Bear, Imogene, Corkscrew, California, Hurricane, Engineer, Stoney, Ophire, Taylor, Tin Cup, etc. Even though all of Colorado is 'Down South' of me.
The low point in WY is about 3300 ft near Devils Tower.

I'll suggest you try a #142 main jet. It'll pull plenty good up Red Mountain pass and still allow you to dip down in Altitude, probably clear down to Cabo San Lucas.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #5 of 5 Old 03-05-2017, 05:58 PM
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Join Date: Jan 2011
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Quote:
Originally Posted by Jhawker23 View Post
I bought 3 #4 washers and I've tried all but still get the washer sitting on the outside of the legs of the "white plastic piece". Surely that can't be right. Shouldn't it slide all the way with the needle? I wish I could post pictures but I'm not at 15 posts...
Are you operating at altitude?

If so, I agree with pdwestman; doubt shimming the needle's a good idea, as the procedure FUEL-ENRICHENS the mixture in mid-to-wide-open throttle range; unlikely to help air/fuel ratio at altitude. Why would you want to fuel-enrich your mixture beyond stock air/fuel ratio when operating at altitude? You'd want the REVERSE, right?

But, should you ever wish to shim the slide: A MODEST PROPOSAL: View the FIRST video on this thread: http://www.klrforum.com/how-tos-tech...-overhaul.html . At about 3:30 and following, you'll see how the carburetor, slide, etc., are assembled; then . . . at around 4:25, you'll see ACTUAL 22-Cent Mod washers EXTRACTED from the carburetor!

You will notice, no interference exists between the white plastic "fingers" of the spring retainer, because . . . the washers fit flat in the mixing chamber; the washers only see the flat side of the white spring retainer, NOT the fingers.

My perception/interpretation . . . YMMV!

Regardless, don't think you need no stinkin' # 4 washers at altitude, for reasons specified.

And, I'll reiterate the oft-repeated info . . . drilling the slide only improves throttle response; HAS NOTHING TO DO WITH AIR/FUEL MIXTURE.

Last edited by Damocles; 03-06-2017 at 08:34 AM.
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