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Author Topic: 4TH GEAR IS GONE!  (Read 2830 times)

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Offline JBKX

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4TH GEAR IS GONE!
« on: September 23, 2003, 02:37:19 AM »
I FIRED UP MY 86 KX500 A FEW DAYS AGO AND WENT FOR A SPIN.  WHEN I SHIFTED INTO 4TH IT FELT LIKE THE CLUTCH WAS SLIPPING BUT WHEN I WENT INTO 5TH IT ACTED NORMAL.  THE NEXT TIME I FIRED IT UP, 4TH GEAR IS NON-EXISTENT.  I FIGURE THAT SOMETHING (PIECE OF METAL?) HAS MADE ITS WAY INTO THE TRANNY AND TAKEN OUT 4TH.  ANY SUGGESTIONS ON WHAT TO LOOK FOR AND WHAT I SHOULD DO NEXT.
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2) 1986 KXT250 TECATE 3's
1986 KXT500 TECATE
2001 KX500SF

Sharc

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4TH GEAR IS GONE!
« Reply #1 on: September 23, 2003, 09:29:28 AM »
Hard luck...! Drain the trans oil and look for metal flakes/chunks. Sounds like it's time for tranny surgery...

Marc the Sharc
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teamgreen500

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4TH GEAR IS GONE!
« Reply #2 on: September 23, 2003, 02:02:28 PM »
JB,
There's a good chance that you rounded the dogs on 4th gear. The "fingers" that cause one gear to lock into place can get worn and cause the very problem you're dealing with.

You may not find any obviuose damage until you pull hte tranny and unspect the edges of the dogs.

Good luck,

Manny

p.s....at least you didn't have a gear sieze "onto" the gear shaft. I just did and you can't believe the parts list! You're probably looking at a gasket set and a gear or two.
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Offline JBKX

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4TH GEAR IS GONE!
« Reply #3 on: September 24, 2003, 06:36:55 AM »
I HOPE YOU'RE RIGHT!  IT'LL PROBABLY BE A MONTH OR BETTER BEFORE I GET IT DONE (PRETTY BUSY FARMING FOR A WHILE).  THANKS FOR THE INFO.
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2) 1986 KXT250 TECATE 3's
1986 KXT500 TECATE
2001 KX500SF

freestyle111

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4TH GEAR IS GONE!
« Reply #4 on: September 27, 2003, 07:47:01 AM »
i think teamgreen is right about rounded gear dog.If its not that itsprobably broken or bent shift fork.Eitherway if you drain the oil and make sure theres no Chunks of  metal floating around engine you can still ride bike[just no 4th gear] until you have time to pull motor apart and fix tranny.
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