Start first with the shifter cable for adjustment! I can't say for sure but you need to start some where. It could be the shifter is moving and making contact some how?????:getrdone:

 

Theres been recent posts from people having this problem if I remember correctly, try sifting through a few pages in the forums or use the search.

If not, im sure someone will chime in, I never really read the posts so I cant help you out.

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The reverse sensor is bad. It is on the left side of atv behind the motor and kinda looks like a spark plug. You can un clip it and ground the wire out and it will run fine. But be careful in reverse cause there will be no limiter now... or get a new sensor...

 

Yes this is exactly right. This just happen to yamaguys 700 and this tip fixed it.


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ok i will give that a try thank you!

 

On 07 & 08 700's you can cure the problem several ways (probably works on other models also). 1. ground the wire to the switch (has side effects). 2. Put a thinner washer under the current rev/nuetral switch. 3. eliminate the washer and re-install the switch using thread sealant. 4. Install the newer updated switch (around $20 at online vendors).

 

Mines an 06 660, grounding out that wire will stop the engine from cutting out or does that just stop reverse light from flashing?

 

:rocker:Go to grizzhopperdotcom for instructions on the "reverse override mod" for your model yr.

 

on the 700's the gear selector switch gets water in it. Its behind the cluch housing assembly, I have taken mine apart a few times, loaded up with dielectric grease and it will fix it.

 

on the 700's the gear selector switch gets water in it. Its behind the cluch housing assembly, I have taken mine apart a few times, loaded up with dielectric grease and it will fix it.

Ok but mines a 660, is it the same?

 

Definately the reverse sensor, replaced mine last week, problem solved.

 

will doing the reverse mod stop my engine from cutting out while im driving?

 

Yes if it is the sensor also it will eliminate the light for the reverse on dash. If it is only cutting out once in a while just get it prepped for the mod.. Take a piece of wire and connect it to a engine bolt for the ground out and on the other end put a male bullet connector , then when it starts cutting out stop and unplug the sensor and connect it to the male bullet connector and it should cure your problem.. But remember the limiter in reverse will be gone...................

 

I haven't ever heard of the reverse sensor going out on a 660, that's a 700 problem. It's his reverse limiter kicking in it sounds like. As stated go to Grizzhopper dot com and ground out the green wire with a white stripe, it's located running along the top of the frame, left side of the 660. Right next to and running along side the main wiring harness.

 

Hi
Is this the reverse sensor?
Sorry I am not mechanical 😬

 

Get the best info for your machine by posting year, cc and model.

That is the thermoswitch. The reverse sensor has only one wire and is actually called the a neutral switch and looks like this

 

Thank you. It’s a Yamaha Grizzly 350 2006 model. Where is the neutral switch located?
Thanks in advance

 

Should found on top left side of the crankcase above the transmission.