Unfortunately I do not have the answer yet, but I will!!! I too am having the same problem with my 2006 F650GS I can easily, smoothly go up and down through all the gears but there simply isn't a first gear! It has been mysteriously replaced with neutral. I am totally down with time off here and there for virtually everything and everyone with the exception of first gear and maybe the sun!!!
Also the neutral light will not go off no matter what gear I'm in... it's like it's trying to fill in for first gear or something.
I've been told it might be a shifting fork but as you can see in the diagram below from
https://shop.maxbmw.com/fiche/DiagramsMain.aspx?vid=51602&diagram=11_2977
that 1st gear and 3rd gear share a shifting fork (part #10). Since I can easily use 3rd gear I should be able to use 1st. So unless I can get some useful information/advice on where to go I will take the engine out of the bike and tear it down and figure it out. What ever I find I will share with y'all!
Inspect all braking components for leaks or damage to begin with...Make sure brake lever isn't sticking ..,This could be a stuck faulty relay switch or system needs to be reset by disconnecting battery.....If no luck replace it...British Motor Works also have had faults in wiring....To be safe I would take to a Technician...They will check everything before replacing pump motor...
No, it is not supposed to be filled with petrol. There is a crack in the housing, A common problem.
Take the housing out, flip it over, roughen up the area around the crack and seal it with Q-Bond.
Yes, it is a common problem. Normally the housing needs to be replaced but if removed, you can roughen up the area where the crack is on the inside, and then use Q-Bond to seal it. Have repaired a few like this.
It depends on what you want to adjust. There is no screw type adjustment on the shock itself.
If you are after a different feel, this can only be done by replacing the fork oil with a different grade or amount.
Typically the shocks will have a 10W oil and a 120mm air gap. Using a thicker oil will make then slower, thinner oil makes them faster.
Smaller air gap makes them harder, larger air gap softer.
If the underside of the handlebar is stuck on the upper yolk after you have removed the four bolts, just give it a sharp rap with a rubber mallet from underneath. There is a knurled area that tends to bind but is there to assist clamping and prevent the bars from rotating in the clamp.