HELP! My CR500 Failed...Seized Then No Comp???
HELP! My CR500 Failed...Seized Then No Comp???
Ok,
I was riding around the my house, lots of back roads and I was riding for about 35 minutes. I got on a paved section and went "all-out" for a 5th gear pinned run....It worked great for about 10 seconds then the motor locked up at about 70mph! By some stroke of common sense I pulled the clutch in and coasted to a stop. It was a wild ride for a few seconds!!!
This has happened to me before, about 4 years ago and the bike restarted just fine. Not this time. It seems to have no compression, heck you could kick it over by hand. It just wont fire...real weird.
It was about 30 degrees outside. Any ideas? Thanks!
I was riding around the my house, lots of back roads and I was riding for about 35 minutes. I got on a paved section and went "all-out" for a 5th gear pinned run....It worked great for about 10 seconds then the motor locked up at about 70mph! By some stroke of common sense I pulled the clutch in and coasted to a stop. It was a wild ride for a few seconds!!!
This has happened to me before, about 4 years ago and the bike restarted just fine. Not this time. It seems to have no compression, heck you could kick it over by hand. It just wont fire...real weird.
It was about 30 degrees outside. Any ideas? Thanks!
Last edited by RideRed on November 19th, 2009, 6:27 pm, edited 2 times in total.
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Re: HELP! My CR500 Failed...Seized Then No Comp???
HEY!!! Happy Birthday!!!97CR500R wrote:Ok,
I was riding around the my house, lots of back roads and I was riding for about 35 minutes. I got on a paved section and went "all-out" for a 5th gear pinned run....It worked great for about 10 seconds then the motor locked up at about 70mph! By some stroke of common sense I pulled the clutch in and coasted to a stop. It was a wild ride for a few seconds!!!
This has happened to me before, about 4 years ago and the bike restarted just fine. Not this time. It seems to have no compression, heck you could kick start it by hand.
It was about 30 degrees outside. Any ideas? Thanks!
Re: HELP! My CR500 Failed...Seized Then No Comp???
[quote=""SOLID Bro!!""]HEY!!! Happy Birthday!!! [/quote]
Best present I could have!
Best present I could have!
I am sorry Bob, I don't know the exact day, hour, minute & second of when it seized up on me. It was about 4 years ago. Then I had the top end done about a week later (still about 4 years ago...less a week or so). Now it has done it again. (about 4 years from when I had it rebuilt.)AlisoBob wrote:You had it rebuilt 4 years ago, locked it up 4 years ago too, got it free and have been riding it fine until now... and it locked up again?97CR500R wrote:it was about 4 years ago when I had a shop do the top end.
- Roostius_Maximus
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she ate her pigs
see if theres still a part# ontop of the piston, post that # here and we'll start there. take a picture of the inside of the reed cage area before the jug comes off too k
see if theres still a part# ontop of the piston, post that # here and we'll start there. take a picture of the inside of the reed cage area before the jug comes off too k
http://www.youtube.com/user/500bigbore
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
So your saying it:
1. Locked up
2. Kicked it free and rode it
3. Then had it rebuild ( 4 years ago)
4. Rode it fine until now
5. Siezed, and lost all compression
Correct?
If you didnt change your "summer jetting", and rode it in 30 degree weather... it was prolly leaner than shit.
If your piston is a Wiesco, and it wasent drilled... it was prolly the classic Wiesco "ring smear on the exhaust bridge" failure.
Happens all the time, very weird it lasted 4 years though...
1. Locked up
2. Kicked it free and rode it
3. Then had it rebuild ( 4 years ago)
4. Rode it fine until now
5. Siezed, and lost all compression
Correct?
If you didnt change your "summer jetting", and rode it in 30 degree weather... it was prolly leaner than shit.
If your piston is a Wiesco, and it wasent drilled... it was prolly the classic Wiesco "ring smear on the exhaust bridge" failure.
Happens all the time, very weird it lasted 4 years though...
- Roostius_Maximus
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dad locked up a wiseco in the garage, was clearenced, relieved, drilled, blablabla and barely got the rads warm NEW. I have that piston in the box, he was so mad he ran to the dealer and threw an oem in it and rode the snot out of it same day. just had a nice idle, said give my a helmet and squeek it locked up
http://www.youtube.com/user/500bigbore
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
So what do you recommend? Pro-X or Vertex or???Roostius_Maximus wrote:dad locked up a wiseco in the garage, was clearenced, relieved, drilled, blablabla and barely got the rads warm NEW. I have that piston in the box, he was so mad he ran to the dealer and threw an oem in it and rode the snot out of it same day. just had a nice idle, said give my a helmet and squeek it locked up
- Roostius_Maximus
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oem, then vertex, not prox
i have a prox n.i.b.
i have a prox n.i.b.
http://www.youtube.com/user/500bigbore
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
My CR500 Tech Reference... http://sdrv.ms/1a0CIiz
MRE Components... http://sdrv.ms/1bs2zhd
- britincali
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- Location: Barstow, CA
same thing happened to me on a break-in after a complete top-bottom rebuild on a KTM 380.Roostius_Maximus wrote:dad locked up a wiseco in the garage, was clearenced, relieved, drilled, blablabla and barely got the rads warm NEW. I have that piston in the box, he was so mad he ran to the dealer and threw an oem in it and rode the snot out of it same day. just had a nice idle, said give my a helmet and squeek it locked up
warming it up in the driveway, a faulty wrist pin clip failed and Squeek. perfect half moon shape on the bore. replaced the clip and rode it anyway.