This is not a 5 minute job, so make sure you have the time to do it properly. There are some small and somewhat delicate pieces involved so patience is key.

Tools needed: Phillips screwdriver, small flathead screwdriver, needle nose pliers, 5mm Hex (allen), 3mm Hex (allen), torque wrench, Super Glue (or similar).

Step 1: The first thing that we need to do is remove the fuel tank. There is a detailed How To here.
http://www.yamaha-forum.net/forum/showthread.php?t=447

Step 2: Remove the rubber cover below the battery tray to access the Lean Angle Sensor.
http://www2.mediafire.com/imgbnc.php/6457292409394764c41c2a88421e42b06g.jpg (http://www.mediafire.com/imageview.php?quickkey=6to3zykxx14&thumb=4)


Step 3: Remove the 2 Lean Angle Sensor mounting bolts.
http://www1.mediafire.com/imgbnc.php/299fce3b37e91ea2c00ba9bb3c208fa46g.jpg (http://www.mediafire.com/imageview.php?quickkey=27vclxgsgkj&thumb=4)


Step 4: Disconnect wiring.
http://www4.mediafire.com/imgbnc.php/d154a06e848d626c6d36675be6ce646e6g.jpg (http://www.mediafire.com/imageview.php?quickkey=dmzelzmmlyt&thumb=4)


Step 5: Take a small flathead screwdriver and start working on pushing the white connecting spacer out of the box. There are 3 areas that you have to work on to get it out. One on UP side, one on the DOWN side. and one opposite the mounting bolts. There is also a Black gasket that can be removed next.
http://www2.mediafire.com/imgbnc.php/77b64f0f2b698c00ef91a25e75eddbde6g.jpg (http://www.mediafire.com/imageview.php?quickkey=7mxjdmnt20n&thumb=4)

http://www3.mediafire.com/imgbnc.php/b26a0c4d50af801bd6a7a34b3651a30a6g.jpg (http://www.mediafire.com/imageview.php?quickkey=buzzmzxu9my&thumb=4)

Step 6: Take needle nose pliers and lightly start pulling out the sensor by the metal connector tabs. Once you get it out far enough that you can pull it out by hand stop using the pliers. There are a couple of small pieces that are going to fall out, so you want to be able to hold on them. My pictures are fairly detailed, but you should still try to remember how everything comes apart.

http://www3.mediafire.com/imgbnc.php/bf0e80c7f270d59a255268cc2bec6aac6g.jpg (http://www.mediafire.com/imageview.php?quickkey=b4wimjmtumj&thumb=4)

http://www0.mediafire.com/imgbnc.php/0f695d55e03dda1bb9075714ba08525e6g.jpg (http://www.mediafire.com/imageview.php?quickkey=0jgwm7mjedg&thumb=4)


This is the part that activates the sensor. It has a small magnet/weight on the bottom side. This works similar to a pendulum.
http://www1.mediafire.com/imgbnc.php/4f6c410678ea5194cba2f2e7e8865da26g.jpg (http://www.mediafire.com/imageview.php?quickkey=42ir71mhjyn&thumb=4)


Step 7: We are going to partially reassemble the sensor. Assemble and disassemble the parts a couple of times so you feel comfortable are not fumbling around once you apply Supper Glue. The picture is with the unit in the UP position. The magnet/weight should be at the bottom/opposite the white part on the board.
http://www4.mediafire.com/imgbnc.php/dd9a4c3261198b722c68ddb3cc901b356g.jpg (http://www.mediafire.com/imageview.php?quickkey=d2t1mzgnod3&thumb=4)


Step 8; Apply Super Glue on both of the U areas & assemble circuit board and pendulum. Let glue set for 5 minutes. It should look just like this picture when assembled.
http://www3.mediafire.com/imgbnc.php/9b78de43a5c6567a7fb12e090d868e046g.jpg (http://www.mediafire.com/imageview.php?quickkey=9xnzwzzmyqz&thumb=4)

You should now be able to turn the unit to any angle and the pendulum does not move. You now have a disabled Lean Angle Sensor.
http://www2.mediafire.com/imgbnc.php/8fb860026c84381d739c93e8ea4b2b0a6g.jpg (http://www.mediafire.com/imageview.php?quickkey=8ykr9z5zuid&thumb=4)


Step 9: Reassemble the other pieces of the sensor.
http://www2.mediafire.com/imgbnc.php/51e936b2697a5f828071340ab8ad029f6g.jpg (http://www.mediafire.com/imageview.php?quickkey=5q9ztrzsx7m&thumb=4)


Go back to Step 4 and work your way back to Step 1.


Ride safe.

:thumbup:biggrinDAMN

didn't even know they had one.....

great how-to bro!!!!!!!!

:thumbup:biggrinDAMN

Thanks for providing the space for the pics.:fact


didn't even know they had one.....

great how-to bro!!!!!!!!

Thanks, different design on the 07-08 than previous versions, but same principle.


Ride safe.

its same for 04-06. i just use a small dab of silicon on the pendulum to keep it in place. for hard launches drag racing i had few issues with mine. tho it was moved from stock place anyway,but this cured the cut off of motor under hard launches.

Good right up!! :thumbup

I'll probably have MY MECHANIC :sing do this for me if I feel the need. :yes

Good right up!! :thumbup

I'll probably have MY MECHANIC :sing do this for me if I feel the need. :yes

:lmao :) I hear he's a great one too... :)

:lmao :) I hear he's a great one too... :)

:rofl Yes he is!!!

He will be getting some work next weekend if those damn wheels show up like there supposed to!!! :yes

Now thats a detailed write up! Nice :thumbup

Good right up!! :thumbup

I'll probably have MY MECHANIC :sing do this for me if I feel the need. :yes

I thought you were lean angle challenged.. :rofl

Now thats a detailed write up! Nice :thumbup



I thought you were lean angle challenged.. :rofl



:lmao

:rofl:rofl:rofl:rofl

Now thats a detailed write up! Nice :thumbup



I thought you were lean angle challenged.. :rofl

:lmao

:rofl:rofl:rofl:rofl


Oh you two are freakin' hillarious!! :mock

I think I remember a spirited ride from the CROT to the Damn for the pics that you were enjoying with me leading!! :yes

Oh you two are freakin' hillarious!! :mock

I think I remember a spirited ride from the CROT to the Damn for the pics that you were enjoying with me leading!! :yes

:oh I think you got me confused with some one else...I followed Nick, Shane and company. ;) In your defense though, I enjoyed the pace you set on the sky way.

:oh I think you got me confused with some one else...I followed Nick, Shane and company. ;) In your defense though, I enjoyed the pace you set on the sky way.

The skyway was a blast!! :jiggy:jiggy:jiggy

:rofl Yes he is!!!

He will be getting some work next weekend if those damn wheels show up like there supposed to!!! :yes

I see more How To's coming in the near future. :sneaky


Ride safe.

What was this Lean Angle Sensor supposed to even do??? I have been leaned pretty far both ways and never noticed anything funny.

It's a safety feature for when the bike tips over to shut off the engine.... Many people who wheelie like to disable it to be safe.

R1Master is a Master at how to' as well... :)

Hey thanks DOOD!

It's a safety feature for when the bike tips over to shut off the engine.... Many people who wheelie like to disable it to be safe.

R1Master is a Master at how to' as well... :)


Thanks R1Lover.

HD1911, In theory the lean angle has to be greater than 65 degrees to activate it. Heard of people over the years having problems under different circumstances, so some of us choose to disable it just for peace of mind. Wheelies, Roadracing, Drag racing, etc.


Ride safe.

It's a safety feature for when the bike tips over to shut off the engine.... Many people who wheelie like to disable it to be safe.

R1Master is a Master at how to' as well... :)

So why would Bogie need to disable it? :squid

So why would Bogie need to disable it? :squid

That's twice today that Bogie got the shaft :lmao

:owned

Good right up!! :thumbup



I'd also say it's a good write up! :thumbup

nice write up! i'll add this to my to-do list

Sorry to bring back an old thread...

But i had a question, What exactly does this Lean angle sensor do ?

Sorry to bring back an old thread...

But i had a question, What exactly does this Lean angle sensor do ?

Need to read the thread, your answer was already there on page 1:

It's a safety feature for when the bike tips over to shut off the engine.... Many people who wheelie like to disable it to be safe.

R1Master is a Master at how to' as well... :)


Good write up on this. But, out of curiosity, couldn't one just disconnect this? I'm assuming it's a simple on/off switch and not a rheostat? Glueing is a simple fix as well, just seeing what other options are out there.

Need to read the thread, your answer was already there on page 1:




Good write up on this. But, out of curiosity, couldn't one just disconnect this? I'm assuming it's a simple on/off switch and not a rheostat? Glueing is a simple fix as well, just seeing what other options are out there.

Yeah, that was pretty dumb of me!
i really just subscribed with a question and i came back to read the rest today! Sounds like it could be an issue depending on the circumstances!

Definetly a great write up though! ;)

So why would Bogie need to disable it? :squid


:lol

You don't need it when you only ride on straight roads. :rofl

It's a safety feature for when the bike tips over to shut off the engine.... Many people who wheelie like to disable it to be safe.

R1Master is a Master at how to' as well... :)


hahahh thats kind of a OXYMORON isnt it! !hahahah
Wheelie and safety feature in the same sentence!! hahahahah:r1lover

Best way to disable a lean angle sensor: Let Bogie ride it. You'll never see the bike get enough lean angle to test it. :mrgreen

Best way to disable a lean angle sensor: Let Bogie ride it. You'll never see the bike get enough lean angle to test it. :mrgreen


Wanna bet?? :mrgreen

Skills are just smidge improved over the last summer. :yes:jiggy

It's a safety feature for when the bike tips over to shut off the engine.... Many people who wheelie like to disable it to be safe.

R1Master is a Master at how to' as well... :)

Will the Lean angle sensor cause a lack of accel when trying to wheelie? Sometimes when I go to slip the clutch the bike has a lack of power and does not come up. Is it possible for the lean angle sensor to back off on the engine on hard accel?

Will the Lean angle sensor cause a lack of accel when trying to wheelie? Sometimes when I go to slip the clutch the bike has a lack of power and does not come up. Is it possible for the lean angle sensor to back off on the engine on hard accel?
yamaha had to replace my ecu due to a stumble off five grand . the reason for the problem they gave was related to compliance with eruo III emissions standards or what ever they have to do to get them into the USA -C.A.R.B. or what ever. incase you did not know about this problem . they will replace your ecu no charge it takes about thirty seconds.

Awesome writeup... :thumbup

yamaha had to replace my ecu due to a stumble off five grand . the reason for the problem they gave was related to compliance with eruo III emissions standards or what ever they have to do to get them into the USA -C.A.R.B. or what ever. incase you did not know about this problem . they will replace your ecu no charge it takes about thirty seconds.


Thanks David!!! I got my ecu and it fixed the problem. thanks for the help guys!!!:thumbup

I was wondering if this method would still work if I'm already getting a error code 41?? I did some research and the code is the lean angle cutt-off switch. I don't know if I just have a bad connection or if the switch is bad. I'm not sure how to test it. Got any suggestions? My bike won't start and I have the itch bad!!!!!!!!!!!!!!