Rear Tire - flats - 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 27 Old 03-03-2009, 03:12 PM Thread Starter
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Rear Tire - flats

I have been riding motorcycles since I was 10 years old (about 30 years) and have owned or riden almost every type/style of motorcycle out there.

Prior to 2005, I have had a total of 2 flat tires, both of which were caused by me doing something foolish (extended burn-outs at a race & catching "alot" of air on a logging road at 80mph) and the second nearly ending my youth.

Now the KLR, bought new in '04 and in the first year - 2 rear flats, (after which I installed ""Monster Tubes" front and rear), second year - 1 front 1 rear, third year - 2 rear flats (installed new tires and tubes), and last night - look at bike in garage and rear tire is flat again (hasn't been riden for a week, and checked it 3 days ago all fine).

Out of 6 rear tire flats, only 2 were due to punctures, the rest all from valve stem area failures

I am wondering if this is something unique to this bike/rim or have any others out there experianced this as well? I run everything at the correct pressures and everything is checked at least twice a week.

Turbo
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post #2 of 27 Old 03-03-2009, 08:06 PM
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I've done 30k miles and not a single flat. did your valve failures happen while the air pressure was low? You may want to put a rim lock on the wheel.
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post #3 of 27 Old 03-03-2009, 09:08 PM
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I've never heard of anything like that, my friend. If I were you I would have an exorcism performed.

Not trying to make light, that is a drag...I too have owned a cursed vehicle or two in my time.




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

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post #4 of 27 Old 03-04-2009, 01:30 AM
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Could the rear tire be slipping on the rim? Low tire pressure? Rim lock?

Tim

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2015 Yamaha Super Tenere ES, 5/23/2015
2012 Yamaha Super Tenere; Purchased 7/30/2011; Sold 5/23/2015
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post #5 of 27 Old 03-04-2009, 08:16 AM
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might want to check around the valve stem hole in rim for metal burrs of some sort. If tire pressures are in recommended range there is definitly some sort of problem. Might also what to be sure tube is seated on tire to let valve stem go straight out the hole easily.
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post #6 of 27 Old 03-04-2009, 10:13 AM Thread Starter
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Thanks for all the suggestions guys, but all that have been mentioned have been looked at (with the exception of an exorcism);
-Tire pressure 28-30 lbs (max rated @ 40lbs).
-I have had an alignment mark on the tire/rim to see if tire has moved position on the rim (never moved).
-Valve stem on the monster tube has lock stem and has been installed (torqued correctly).
-Rim, spokes and valve stem have been inspected several times both by me and dealer with no issues found to cause this.


At this point I am considering installing a new tube yet again and this time adding "Tire Goo" (also known as tire slime) to help prevent this from re-occurring.

This is the only issue I have with this bike and it is absolutely infuriating to say the least.

Turbo

Lockjaw: making a little light of the situation in my opinion is a good thing, it makes us see the humor in things, keeps us all grounded and open minded ... Thanks for the chuckle ... you wouldn't have a procedure for this would you?
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post #7 of 27 Old 03-04-2009, 11:22 AM
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No prob. And yeah, I do. It involves a lot of Garlic though...or wait, that's for vampires. There aren't teeth marks in the tires are there?




"In a car you're always in a compartment, and because you're used to it you don't realize that through that car window everything you see is just more TV." R. Pirsig

PPMC #1.
Soon, we ride.

AKA JD Mader or you can call me "Dan" just not early for dinner.

Click my handle for a link to my homepage/blog...which has nothing to do with MCs. Free literature and music! Viva La Revolucion!
-------------------
2008 KLR 650
RIP DM - Soon, we ride.
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post #8 of 27 Old 03-04-2009, 03:00 PM
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Three possibilities:
1. As mentioned low air preasure or use of lubricant during mounting- cure rim lock or higher air preasure
2. Improper mounting leaving the tube torqued - cure partially inflate the tube during installation to ensure proper positioning
3. A burr or uneven edge to the valve stem hole. Check the bubber liner too to make sure there isn't a rip in it.

As far as I know there is no pandemic of bad KLR rims in the world. LOL

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post #9 of 27 Old 03-04-2009, 09:58 PM
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One thing that comes to mind as why the 650 has flats compaired to your past scoots is the width of the KLR rear rim. It's alot wider than most dirt bikes, the bead has less pressure forcing it against the rim, allowing it migrate under load.
Rimlocks and/or leaving the valve stem nut off might help...

Last edited by tirebiter; 03-04-2009 at 10:03 PM.
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post #10 of 27 Old 03-05-2009, 10:25 AM Thread Starter
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The tire and wheel are going in today for inspection and replacement of the tube and, I have decided to replace the tire as well (current tire has 60-70% tread left but will be kept as a spare), will run through all of the posted suggestions at the same time.

I will discuss installing a rim lock as well, however, my rim/tire mark does not indicate that the tire has moved on the rim. As stated earlier, I run my rear at 28-30 psi and most riders that I have spoken to are running at 25 psi with-out issues.

I removed the rear wheel last night and cannot find any indication of a puncture any where. Will post again once tire has been removed and inspected, and report any discoveries.

To all: Thanks for the replies and suggestions.

Turbod98
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