2011 700 grizzly turns over but won't start. - Yamaha Grizzly ATV Forum
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post #1 of 3 Old 08-04-2019, 12:12 PM Thread Starter
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2011 700 grizzly turns over but won't start.

The bike has been sitting for 6 months, turns over and tries to start but won't.
Drained fuel tank and fuel lines, replaced fuel injector,spark plug, and checked out ignition coil (good). Still no start, thinking maybe crankshaft position sensor. I just noticed that the dash board display lights up when key is turned on but there is no display (mph, hr. meter, or fault codes). As biking is starting the display seems to work but since bike won't start the display goes out. I'm beginning to worry ECU is bad, any ideas?
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post #2 of 3 Old 08-17-2019, 12:06 PM Thread Starter
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Ok, crankshaft position sensor checks ok, still will not start but if I continue holding start button, it will run but when I let off start button it dies. Still thinking ECU.
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post #3 of 3 Old 08-17-2019, 03:50 PM
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Welcome from Colorado.
Sorry for no one getting on this thread until today.
So the bike starts with the start button in, then dies when the button is released?
Like the coil loses power?
dezz will be by to help. He knows ignitions very well.

Fast Green Convertible "06" 660 on 26" BH OG's with Stock Wheels.
COOP45 Primary, 1.5 mm shim, -1.5 mm belt, Purple Secondary Spring,
21 gram weights, weight covers reduced to 29 mm diameter and a 2 mm Cut Cam Plate.
2 heat range hotter plug, Warn Winch, Passenger Foot Rests, Rock Deflectors, Heated Grips and Hand Mitts,
Grab Strap, Cooling System Up-Grade and multiple position mirrors.
8040 miles, 812 hours on 1-1-15
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