748 Gearbox probs PLEASE HELP!!!
 

Hi all! I have a strange intermittant gearbox problem on my 1999 748 bip. Occasionally when I downshift, the gear change lever will stick in the lower position and I cannot return it to neutral without coasting over to the side of the road and pulling it back with my hand!
I have inspected and lubricated the linkage and checked that it isn't fouling the swingarm but can't find a fault.
Does ANYONE have a similar exprience of this? I'm a bit paranoid about gearboxes anyway as the one on my RGV exploded as I exited a corner!!! All help gratefully received...

Heard of this before. Drop Nelly a U2U, and I'm sure he'll let you know the solution. It's got something to do with the selecor rod/pin If I remember rightly.

Only time I had a similar problem was on my race bike at Castle Combe as a few of the Hants Guys will recall, in my case it was the linkage, the rose joint/rod end bearing that was connected to the gear lever had near enough seized and no amount of lubrication was going to free it off. So in the end I fitted a new rose joint/Rod end bearing, that cured the fault.

There's a spring on the internal arem that actuates the slector drum. This can break.. Sounds like that's the problem, if there's nothing snagging on the outside.
It's not a difficult fix, but you'll need the engine casing off so the oil and water needs to come out.

I have the same problem on my SPS, but only occasionally.

If the spring was broken, wouldn't it happen all the time ?

Possibly. May just require adjusting, or the spring is about to go.......

Thanks alot guys!!! Sounds promising...