Check engine light when starting - Yamaha Raptor Forum
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post #1 of 12 (permalink) Old 03-09-2013, 04:35 AM Thread Starter
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Check engine light when starting

I was riding in the dunes when suddenly the throttle stopped working (It wouldn't give the engine any power), and then engine stopped. When I tried to start the bike again, the check engine light came on when pressing the start button. The light doesn't flash, it just comes on. I checked all the electrical wires on the reverse and neutral sensor, as well as the TPS, and spark plug. I checked all the fuses, and they all seem fine
When pressing start, it will turn over, but wont start, almost like it's not getting any fuel.

What is wrong?

Last edited by N_001; 03-09-2013 at 04:46 AM.
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post #2 of 12 (permalink) Old 03-09-2013, 05:42 PM
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N 001,
Did you check the fuel level? Just a thought.
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post #3 of 12 (permalink) Old 03-09-2013, 09:27 PM
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My engine light comes on when i start mine each time. My buddies Raptor 700 does the same thing.

I know that doesn't solve your issue, but the light coming on i don't think is part of the issue. I'm not sure what to test but it does sound like, Injector, TPS, TB issue type issue. Check the fuel pump as well.

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post #4 of 12 (permalink) Old 03-10-2013, 09:47 AM Thread Starter
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Quote:
Originally Posted by Sid View Post
N 001,
Did you check the fuel level? Just a thought.
Sid
Yes, it was full before I left. About 2 minutes into the ride, the throttle stopped working, and the engine died.

Quote:
Originally Posted by Rap_Rider View Post
My engine light comes on when i start mine each time. My buddies Raptor 700 does the same thing.

I know that doesn't solve your issue, but the light coming on i don't think is part of the issue. I'm not sure what to test but it does sound like, Injector, TPS, TB issue type issue. Check the fuel pump as well.
I've checked the fuel pump, relay, and electrical. I might need to take it into a local bike shop, and see what they can find.
Everything sounds normal when trying to start the bike, but it just wont run, like there's no fuel being injected.

Last edited by N_001; 03-10-2013 at 09:49 AM.
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post #5 of 12 (permalink) Old 03-10-2013, 04:05 PM
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Have you checked to see if you have a spark - take the plug out and put the lead back on it and hold the spark plug against the engine. When you wind it over you should SE a spark. Sorry if you already know this but not everyone does.

To check if you have fuel getting in, take the plug out and wind the engine over, you should see fuel vapour coming out the hole.

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post #6 of 12 (permalink) Old 03-11-2013, 10:31 AM Thread Starter
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Originally Posted by Ezkymco View Post
Have you checked to see if you have a spark - take the plug out and put the lead back on it and hold the spark plug against the engine. When you wind it over you should SE a spark. Sorry if you already know this but not everyone does.

To check if you have fuel getting in, take the plug out and wind the engine over, you should see fuel vapour coming out the hole.
You were right, I didn't check for the spark properly the first time. The bike bike would start when it was cold, but as soon as it warmed up it wouldn't start again. It turned out to be the ignition pickup, no spark at all. The part just got worn out.
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post #7 of 12 (permalink) Old 03-11-2013, 03:20 PM
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I just put my quad back together I put a 11:1 piston in it. It ran just fine before I took it apart. My buddie did a first start up and it started on the second crank. So we finished putting it back together and fired it up and went to the gas station and shut it off filled it and took off. Went about 3 miles at steady throttle through all the gears. Went to take a turn and give it throttle and died. It would crank but not start. There was an engine light on but did not catch how many blinks. Got back to the garage and put the charger on it fired up and kept firing till the next morning.


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post #8 of 12 (permalink) Old 03-12-2013, 09:21 PM
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Check engine light serves a warning or a problem on the motor, the best way to know the problem is have it diagnosis it, to know w/c sensor is sending the error.
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post #9 of 12 (permalink) Old 03-14-2013, 02:51 AM Thread Starter
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Originally Posted by N_001 View Post
You were right, I didn't check for the spark properly the first time. The bike bike would start when it was cold, but as soon as it warmed up it wouldn't start again. It turned out to be the ignition pickup, no spark at all. The part just got worn out.
Upon further inspection, the throttle body was dirty which was caused the engine to run leaner than it already was, and the fuel pump was damaged as well. This then caused detonation on the piston over time, which blew a hole in it. Now it needs a rebuild...
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post #10 of 12 (permalink) Old 03-14-2013, 03:57 AM
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damn, that is pretty bad...

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