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Old 04-17-2011, 10:59 PM   #1 (permalink)
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08 Yamaha Nytro MTX Won't Start

I'm having a starting problem with my 08 Nytro and I'm hoping someone will have some advice for me.

Here's a little background:

This is my first winter with the sled and I haven't been on it much. I've been storing it outside with the cover on sitting on a trailer, but it does get rained on quite a bit. When I got the sled serviced at the beginning of the winter, they told me my battery was getting pretty low and I should replace it soon.

The sled had been working great early season then I hadn't ridden it for a while. I went to start it about a month ago and it wouldn't start. The display lit up and everything but the starter wasn't even cranking. After trying a number of times, it finally started. I let it run for a bit then turned it off and towed it to where I was going to ride. It started fine all day riding it the next day and I figured it was just the battery getting low so I picked up a new battery.

I just got around to replacing the battery today and I figured I'd start it again to check things out before swapping the battery (it's been a month since it's last start). The battery was totally dead this time... no display even when turning the key. I swapped out the battery, and now I get the display when I turn the key, but can't get it to start. Same problem as before... starter doesn't even make a sound even with the brand new battery.

Anyone have any ideas? Is it most likely my starter is dead? Could storing it outside in the rain have anything to do with this?
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Old 04-18-2011, 07:53 AM   #2 (permalink)
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Starter relay may be in need of replacement.
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Old 04-18-2011, 08:39 AM   #3 (permalink)
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storing it outside shouldnt be the problem.
it could be the ign switch or bad ground also.
need some diag to figure out where to
go from here.
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Old 04-18-2011, 09:14 PM   #4 (permalink)
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i have seen a few of those starter relays to be real moisture and temp sensitive, especially in a corrosive environment.

you can actually remove the relay and make a jumper wire to rule out a relay issue. on your sled, i think its the red/white wire to the blue wire, or red/white to black. check the plug at the relay and see what color the wires are at the bottom portion of the plug.
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Old 04-22-2011, 02:00 AM   #5 (permalink)
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Thanks guys. Pretty sure it's the starter relay. I was able to start it by jumping the two terminals on the relay with a screwdriver. Should have a replacement installed tomorrow and will figure out a better way to keep moisture out of the new one. Thanks again.
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Old 04-22-2011, 07:52 AM   #6 (permalink)
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good deal, glad you figured it out.
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Old 04-22-2011, 07:58 AM   #7 (permalink)
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You might try some of that spray that is used on battery terminals to prevent corrosion.
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Old 04-22-2011, 03:29 PM   #8 (permalink)
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Use dielectric grease.
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