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Discussion Starter #1
hello guys,sorry for my english i'm italian
i have a problem whit my burgman 650 of 2008
this morning when i turn on the scooter, thay start whit the 5 gear , and is impossible to change , don't turn back on automactly and dont going down or up gear.

any guy know this problem ?
is possible do a cpu reset ?

thank's a lot
 

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Do you have an FI indicator showing on the dash?
 

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sorry to hear about your problem...

being stuck in 5th gear is a first that I have heard of.

Either the CVT belt is stuck and the CVT, primary pulley can't reset itself on a start or there could be an electronic problem.

I would check the connectors to the ECU.

try to get the bike to reset itself by disconnecting the battery and see if that makes a difference.

when you say you are stuck in 5th gear, I am assuming you are in manual mode?
on my 04, the gear numbers only light up in manual mode.
try switching to automatic mode to see if it makes a difference, make sure power mode is off.

you can also perform the dealer diagnosis, you may get a code that is somehow not being displayed.
good luck....
 

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Discussion Starter #5
thank's for your response ,
i'm tomorrow try to sconnect the battery for a hard reset ,
the gear ar on a manual , but i try to pass to automactly but that is impossible , the command doens't response .
 

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Usually when shifting is inhibited by the ECM a FI indicator will come on and a error code will be set. The conditions that cause this are failure of the CVT motor, CVT pulley position sensor, CVT speed sensor, CVT secondary pulley sensor or the CVT engine revolution sensor with resulting codes C51, C52, C53, C54 or C55 being set. Since you do not have an FI indicator showing then no code is set.

You can try reseting the ECM by unhooking the negative battery terminal for about 30 seconds but I don't really think it will do you much good.

I would suspect either a problem with the CVT motor or an internal problem in the CVT.
 

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Discussion Starter #8
thank0s a lot,
but another question , i don't understand where is the white cable for do the connection whit the paperclip?
 

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Open your seat and look on the front left side where the 40amp main fuses are. The cable will be down in there and will have a cap on it. It may not be white though. The one on my bike is black.
 

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almost sounds like it's stuck in manual mode.
ANy chance the button itself is stuck in?
 

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I've experienced this problem on an '08 B650 with a flooded CVT. The floodwaters caused the Primary Pulley Position sensor to burn out and give very erratic readings back to the ECM resulting in the dash display showing changing numbers and not responding to either the auto/manual mode button or the UP/DOWN buttons.
 

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I've experienced this problem on an '08 B650 with a flooded CVT. The floodwaters caused the Primary Pulley Position sensor to burn out and give very erratic readings back to the ECM resulting in the dash display showing changing numbers and not responding to either the auto/manual mode button or the UP/DOWN buttons.
So how did you remedy the problem and how much water was in the CVT etc ? In other words , the rest of the story .

TheReaper!
 

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Short answer - the bike was flooded under water 30" deep for a week. Replacement PPS was the resolution.

Long answer would require a lot of typing, suffice to say, I tore the CVT down and replaced some rusting bearings as a preventative measure. The bike is still going strong, 3 years and 25,000 miles later with no further problems.
 

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Discussion Starter #15
i do the bridge ,
in the screen come out the write " COD " and nothink also.
but now the scooter don't go in on ?

why?
 

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Discussion Starter #16
ok ,
i don't know why , but not it start in the 1° gear , i can change to D or to 1 , and when i'm at 8000rmp i can change to the 2° gear, the screen show me the 2° gear , but the trasmission doesn't change gear
 

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Since you are not getting an error code that implies that at least the ECM thinks you don't have a sensor problem. That doesn't mean you don't but it lowers the probability.

Have you pulled the primary stopper bolt out and checked it's condition. If not I would suggest you do. If the end of it has failed then that would indicate you have internal CVT problems.

If it is good then you can move on to checking other things like the pulley position sensor and the CVT motor.
 

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If you don't know how to check the stopper bolt LeDude made a video that will help.

(external link)
 
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