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If your parking break rev limiter kicked in when your riding it could be very bad. And if it has kicked in you would know.

-Kyle
 

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I did it the same way, but i didnt remove the wire, i just unplugged it and sealed off the plugs with electrical tape.

Bump for a good how to.
 

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when i pulled out the parking break sensor connection i accidently pulled the other sensor underneath of that one out too. on the handlebars there are two, the one on top and the one underneath that. what does that go to??
 

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Discussion Starter #45
The parking break sensor lets the electronics know if the parking brake is activated or not and if it is activated it will make the motor cut out so it doesnt try to move, the problem is the lever where the sensor is can become loose or the sensor can malfunction and cause the electronics to cut the motor out randomly without activation of the parking brake.
 

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okay...i under stand what the pb sensor does....but by removing this, can i still start my quad in gear? and if it's off but in gear and i hold the clutch in will it turn over?... thanks
 

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okay...i under stand what the pb sensor does....but by removing this, can i still start my quad in gear? and if it's off but in gear and i hold the clutch in will it turn over?... thanks
No, all it does is get rid of the PB rev limiter.
To start in gear, you must bypass the clutch switch, follow the wires from the clutch switch to the area where they plug into the main wiring harness, unplug the switch wires and plug the main wiring harness wires together..........
 

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so i just follow the wires from the cluch perch and unplug those?... i' m not sure what the clutch switch is...

and these are all just plugs or am i required to splice wires together?

thank you
 

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Thought I would add my $.02. I have an 05 and this past weekend I was out in the dunes and it wouldn't start when I was in gear clutch in but would start in neutral no problem and ran fine. I got it home and started wiggling wires around. I wiggled the electrical connection that goes in to the clutch and it would start in gear clutch in. I followed the wire down and it wengt into a white plug that looks just like the picture on the first page. I attempted to take the connector off from the clutch area and broke it. I figured oh well I don't need it anyway. I took the wire all the way out and unplugged it........ same problem wont start in gear clutch in. I stripped the 2 wires and twisted them together and now it will start at any time in gear clutch in or out. I called the so called "Yamaha Dealer" near my house and asked him if the 05 had a PB sensor he said he had never heard of such a thing. I told him I know they are on 01-04 for sure he acted like I was speaking Chinese. He said the only electrical connections on that side of the handlebars are the starter/ kill switch and the clutch sensor. My clutch sensor connection is now borken and it's gonna cost me $35 to get a new one from the Stealer. So for the record THERE IS NO PB SENSOR ON AN 05. Hope that helps some in the future.
 

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that would be a good place to stay away from. I have the same problem with local yamaha dealer. They are idiots. If you want to know something, you ask on this forrum.
 

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that would be a good place to stay away from. I have the same problem with local yamaha dealer. They are idiots. If you want to know something, you ask on this forrum.

Service departments were designed to repair, not to tell you how to repair........
 

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I hear that!!
 

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Discussion Starter #53
Im pretty sure an 05 does have the parking brake sensor, pointless for Yamaha to put it on 01-04 and take it off in 05 when they actually redesigned the parking brake so it WORKS. Ask anyone on here with an 01-04 Raptor and I can bet 95% never use the parking brake OR it doesnt work. If you are unsure where your parking brake or clutch sensors are, dont mess with the wiring. With 01-04 you just unplug the sensor to bypass, people with 05s havent really said anything about this since its not a big problem because of the redesign. There is really no reason to bypass the clutch sensor unless you need to remove it for a new perch setup, the only thing bypassing the clutch sensor does is make the CDI think the clutch is always in, and there is really no benefit to being able to turn it over in gear with the clutch engaged. Also, I know the CDI tracks the RPMs and will notify you when you are revving the engine too high in neutral, I am not sure if it also does anything about RPMs when it knows the clutch is disengaged which if you unplug the sensor....it will think the clutch is always disengaged.

If you unplug the sensor and it runs differently, plug the sensor back in, if it still runs differently then you have some other type of problem. If you want to experience what happens when this sensor malfunctions, put your parking brake on(with sensor still plugged in) and try to run/move your atv and you will see why it is advised to bypass this sensor so you do not have this problem while riding. I honestly believe if the 700 did not come out so soon, Yamaha should have done a recall on the sensor/perch design. This can pose a very big problem when jumping and hill climbing when throttle control is a major part of whether you make it or wreck.

Remember, there is no replacement for common sense...if you unplug it and it runs worse, and when you reconnect it and it still runs bad...well obviously its not the sensor at fault. This sensor is very simple, it either works or it doesnt and there is a major difference in the way it runs(you wont even be able to move the quad) when it fails.
 

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I'm 100% positive that there is no PB sensor on the perch on my 05. There is not even a place for it to go. The only electrical connections that are on the left side of the handlebars is the clutch sensor and the ignition electronics. The clutch sensor connects to an identical white plug as the PB sensor pictured in this thread. When unplugged it always thinks the clutch is disengaged and will only start in neutral. I took the broken cable and spliced the two wires together and it thought the clutched was always closed and would start in gear clutch out. I have since replaced the clutch sensor and all is good.
 

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Still having problems with engine cut-out

I just read through your complete thread and over and over the same resolution comes to removing the PB sensor. I removed it and I am still seeing the same problem. I was not sure to hook up the 2 wires or leave them disconnected. I tried both and it still gives the sames result. The engines starts, idles and when you push on the throttle it sputters out. I noticed willy's response and he said that you did not need to connect the wires. So right now that is where I am. PB sensor is out, wires are disconnected.

Any other suggestions?

I guess it could it be a problem with the CDI? Has anyone experience problems with the CID going bad by it thinking the sensor was always disengaged (PB brake was on) and causing the engine to cut out?

I can't imagine it is a problem with the carbs, b/c it starts and idles great. It just cuts out as soon as you give it a little gas. I even turned up the idle screw and it raises the idle with now problem. It just shuts down as soon as you hit the throttle.

Any help is greatly appreciated.

I have not taken apart the carbs yet, b/c it really seems to be electrical versus gas not being delivered.
 

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I assume you have an 01-04? If so then you just disconnect the PB sensor entirely follow the instructions in the first post. I have an 05 and no PB sensor I the sensor I was talking about in my last post is the clutch sensor. Hope that helps.
 

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Yes, it is an 02 and as mentioned above, I have actually removed the sensor and have the wires disconnected and it still is cutting out.

That is why I was looking for other suggestions.
 

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I may not be understanding you correctly but if you are able to connect the 2 wires together than you haven't removed it from the white clip behind the left headlight.
 

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Yes, it is an 02 and as mentioned above, I have actually removed the sensor and have the wires disconnected and it still is cutting out.

That is why I was looking for other suggestions.

As long as you have not connected the wires together after removing the sensor wiring harness.............
 

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Discussion Starter #60
Do not connect them together, but since you removed it and it still does it...have you bypassed the reverse limiter???
 
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