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Discussion Starter #1
I own a Grizzly 450. I love the bike. It's literally saved my life before. With that being said my display no longer works. Bike runs it will start. However, I can't see what gear I'm in or my MPH or if the check engine light or anything is on. The blue LED backlight for the display works but none of the symbols or numbers appear. At the same time that stopped working i could no longer stick it in reverse or park. Almost like I wasn't engaging the brake. Even though I can still go to natural, high, and low. Please give advice! Is this just one of the electronics needing replacement or something else. Even theory's are welcome! Thanks to anyone who responds.
 

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Maybe just a fuse?
 

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After checking fuses, I'd start wiggling wires at the pod and working my way outward and see if it flickers on and off when you move stuff. Maybe a loose plug, wire coming out of a plug, bad ground, maybe the housing wore through and one is shorting. Or maybe something got chewed on by a rodent. Of course it's also possible that it's a bad ECU or other component but those are expensive to replace without knowing they'll fix the problem, but your own time to troubleshoot doesn't cost you anything.

What year? How many miles/hours on it? What kind of riding do you do? Where do you store it when not riding?
 
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Discussion Starter #4
After checking fuses, I'd start wiggling wires at the pod and working my way outward and see if it flickers on and off when you move stuff. Maybe a loose plug, wire coming out of a plug, bad ground, maybe the housing wore through and one is shorting. Or maybe something got chewed on by a rodent. Of course it's also possible that it's a bad ECU or other component but those are expensive to replace without knowing they'll fix the problem, but your own time to troubleshoot doesn't cost you anything.

What year? How many miles/hours on it? What kind of riding do you do? Where do you store it when not riding?

It's a 2012. With approximately 800 miles. Roughly 300 hours. Give or take. I do trail riding to mud bogging nothing to crazy deep though. It sits in a closed garage when not in use. Not accessible to rodents.
 

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............. At the same time that stopped working i could no longer stick it in reverse or park. Almost like I wasn't engaging the brake. Even though I can still go to natural, high, and low. ..........................
Start by checking all the fuses and adjusting the foot brake.
 

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There is nothing electrical to stop you from shifting gears. There is only pin that is connected via a cable to the rear brake. This cable sometimes stretch, or someone can over-tighten the rear brake cable and thus not allow enough travel to pull the gear shift pin.

The shifter pin is a safety mechanism to protect the rider and bike from accidentally shifting into reverse while moving.
 
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Looks a little different on the 2012 450. Is it #25? That one is labeled "CABLE, STARTER 1".
 

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I know for the 700, there’s a ground wire on the (very top) head of the motor - it can cause problems with the reverse override switch. It’s a little tit that the wire sticks onto. Might be related to this on the 450s?


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I know for the 700, there’s a ground wire on the (very top) head of the motor - it can cause problems with the reverse override switch. It’s a little tit that the wire sticks onto. Might be related to this on the 450s?
I had to recently replace that on my 700 and it's the Neutral Assembly Switch. However, the symptoms I experienced were very different from what the OP is describing. What was happening on the 700 was while at throttle, the engine would cut out while simultaneously the "R" would light up on the POD. The issue would happen pretty consistently until that part was replaced.

If that part does exist on a 450 (I do not know if it does but seems reasonable to assume it does), will a failing NAS behave differently on a 450? I'm not sure, @dezz might know.
 

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Looks a little different on the 2012 450. Is it #25? That one is labeled "CABLE, STARTER 1".
That part # 25 is actually the choke cable. Yamaha calls it the starter cable. Yamaha's diagrams can be very vague.

The shifter lock out is controlled by the foot pedal brake. Part #22 That is the reason the FSM indicates adjusting the rear brake before adjusting the shifter.
The handle bar rear brake lever cable pulls on the part of the foot brake linkage to apply the rear brakes and to release the lockout.
 

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I had to recently replace that on my 700 and it's the Neutral Assembly Switch. However, the symptoms I experienced were very different from what the OP is describing. What was happening on the 700 was while at throttle, the engine would cut out while simultaneously the "R" would light up on the POD. The issue would happen pretty consistently until that part was replaced.

If that part does exist on a 450 (I do not know if it does but seems reasonable to assume it does), will a failing NAS behave differently on a 450? I'm not sure, @dezz might know.
Yes, I couldn't recall what it was exactly - but it acted like the reverse override was kicking on (even going forward). Thanks for clarifying.
 

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Discussion Starter #12
Fixed the display!!

I fixed my display. It was a fuse that chipped on one of the prongs wasn't connecting properly. Swapped that out with a spare and its good as new. Couldn't be happier. I still cannot get it to shift into reverse or park though. I read one response that said check the cables and adjust I'm not really sure what how to. Handbrake has never worked footbrake doesn't work now either. Was bought used. Any suggestions?
 

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First thing you need is a factory service manual. Download at tradebits.com $15.00
 

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First thing you need is a factory service manual. Download at tradebits.com $15.00
Or you can just PM me your email addy and I can send you a copy of the 03-06 Kodiak 450 manual. Only notable difference with your '12 is frame and rear brakes
 
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