drmk24
Newbie
- Joined
- Oct 12, 2016
- Messages
- 1
- Age
- 38
- Location
- syracuse ny
- Country
- USA
- Snowmobile
- 2000 Yamaha sxr500
Hello,
Back story - Brother in law's 2000 yami SXR500 stalled on him on the trail at the end of last season. Was running fine, he stopped at a crossing, tried to get going again and is stalled. Tried to start it (pull start only), and was locked up. Would not turn over at all. He pulled belt off just to get it onto trailer and get it home, then was too lazy and dumb to look into it, so it sat all summer - then he found a new one, so I win out and get his. My first sled. I've been riding/racing motocross for years, and have rebuilt several 2 stroke engines, so know about the internal/basics of the engines, but have no knowledge of sleds after the engine.
So I got it home, pulled out plugs, look fine. Pull off head - cylinder walls that I can see look good, everything that I can see looks good from the top.
This is where my knowledge becomes nonexistent - I tried to wiggle the clutch, or I think it was the clutch at least. Whatever it is that comes out of the bottom of the engine, that I assume connects to the crank shaft. When I wiggled that, I was able to turn the engine over completely (head still off so no compression). I then put head back on, and was able to pull engine over, with just some resistance from compression. Engine sounds good - no grinding, banging or sounds at all.
Then I tried to start it. Again, its my first sled, so I tried everything with the kill switch/key position. Nothing. So take plugs back out and pull. Still pulls over, no spark.
So now I wonder...what is going on? Could starter be bad? Would this cause engine to lock up and stall? Or what else would cause this? Anything I am missing or anything I should do differently or look for?
Thanks for any help!
Back story - Brother in law's 2000 yami SXR500 stalled on him on the trail at the end of last season. Was running fine, he stopped at a crossing, tried to get going again and is stalled. Tried to start it (pull start only), and was locked up. Would not turn over at all. He pulled belt off just to get it onto trailer and get it home, then was too lazy and dumb to look into it, so it sat all summer - then he found a new one, so I win out and get his. My first sled. I've been riding/racing motocross for years, and have rebuilt several 2 stroke engines, so know about the internal/basics of the engines, but have no knowledge of sleds after the engine.
So I got it home, pulled out plugs, look fine. Pull off head - cylinder walls that I can see look good, everything that I can see looks good from the top.
This is where my knowledge becomes nonexistent - I tried to wiggle the clutch, or I think it was the clutch at least. Whatever it is that comes out of the bottom of the engine, that I assume connects to the crank shaft. When I wiggled that, I was able to turn the engine over completely (head still off so no compression). I then put head back on, and was able to pull engine over, with just some resistance from compression. Engine sounds good - no grinding, banging or sounds at all.
Then I tried to start it. Again, its my first sled, so I tried everything with the kill switch/key position. Nothing. So take plugs back out and pull. Still pulls over, no spark.
So now I wonder...what is going on? Could starter be bad? Would this cause engine to lock up and stall? Or what else would cause this? Anything I am missing or anything I should do differently or look for?
Thanks for any help!
Maybe something lodged in the stator? Take recoil off and see if something looks out of place. Then flywheel.
- Joined
- Jun 1, 2004
- Messages
- 7,681
- Location
- sudbury on
- Country
- Canada
- Snowmobile
- 2016 apex xtx
2011 apex xtx
2009 phaser rtx/x
1997 et410t/r
1988 vk 540
reeds? could have inhaled a petal.
musselman
Pro
- Joined
- Apr 17, 2009
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- 167
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- Fenelon Falls, Ontario
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- Canada
- Snowmobile
- 2019 Ren XRS 900T, 2010 Nytro RTX
If it locked then there is something in there that's not supposed to be. Don't start it until you find a problem, you don't want to cause any additional damage.
- Joined
- Apr 14, 2003
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- 6,539
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- Hessel, Michigan
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- USA
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- Sidewinder, SR Viper XTX, SR Viper XTX, 2016 Apex XTX and Pro-Line Pro Stock 1000
I'm guessing something on the right side of the engine causing something to jam up
- Joined
- Jun 1, 2004
- Messages
- 7,681
- Location
- sudbury on
- Country
- Canada
- Snowmobile
- 2016 apex xtx
2011 apex xtx
2009 phaser rtx/x
1997 et410t/r
1988 vk 540
could be stator or cdi let go for the no spark unless the kill switch is down.
slowride06er
Lifetime Member
Find anything?
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