Part number for 750 genny fan belt

One way is to check the lenght of the belts with tailors tape. The original is around 535mm.
It is very essentail not to mix different kind of lengths.

You can check that the 10 x 495 belt if it is around this. If is around 513mm then the 495 is datum lenght not inner length as should be
and the belt is too short.

-Jouni
 
I've always put my belts on by levering over the dynamo pulley whilst turning it.
I have never had one break in 30 years.
Paul
 
Understood the piss taking Clem. ;)
I meant the replacement interval. Normally the classic V belts last in old cars around 30 - 50 000 kms in desired condition.
Some people state that the Laverda generator belt doesn't last longer than 20 000 kms in a desired condition,
when everything is carefully set as should. Even less if everything is not in best possible condition or poor belt.
If compared to cars it is very short belt on small pulleys spinning at higher speeds and no tightener.

-Jouni
 
I reiterate.
The belts are hassle free. I've only ever changed one and that was replaced many, many years ago by a toothed belt which is still in my SF2.
There is no setup. Put it on and forget it.
The only charging problem I've had on a 750 was due to the dynamo bearings giving up the ghost.

Paul
 
I have had and seen them start to shred, slip and otherwise fail. Not something you hope for half way between Kickatinalong and Tearabaginarf on a circumnavigation on Oz. A new belt should last the distance though, strange it is so hard to get the correct one.
 
If you're between Kickatinalong and Tearabaginarf, you can cut lengths out of your Y fronts. Will quite happily replace your belt, and buckles.

If you're worried about things breaking, you should stay at home anyway, as long as there isn't a roof over your head, it could fall. You can't do anything about a roof with Y fronts.

Paul
 
Thank you Jouni, the simple answer was right there all along, but I failed to see it until you mentioned it. 4x 1mm washers under the brackets, and the 11a0545 belts fits like a finger in a bum.

Thank you Jouni, cold beer waiting for you when you arrive!
 
I consider the drive side bearing in the generator has no modern dust shield. Dust goes in and eventually kills it.
It is possible to use modern RS type ball bearing, these have rubber seal.

Still somewhat strange if the standard size belt is too short.
My first thought is if the generator pulley is not original, or something like this.

-Jouni
 
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