G: Gearbox (Twin) Oil leak

erik

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VOC Member
The gearbox of my Twin is leaking on the sprocket side. I have fitted a new oilseal and the Surface of the sprocket is perfekt for the oilseal.Any ideas? Erik
 

erik

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Maybe my dipstick is to short and the gearbox is overfilled?I used a Long cable tie to look how Deep the oil is in the gearbox and it was About 8 cm Deep.Erik
 

craig

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VOC Member
This is my understanding of Burman grease/oil level.
I am using Castrol 000 grease.

So you look in the fill port and if the grease is touching the bottom of the kick start quadrant, the level is okay.
Yes? No?
BurmanOilLevel4.jpg
 
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greg brillus

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VOC Member
The twin gearbox only really needs one litre of oil, the factory specs say 2 pints (1200 ml's) so fill with one litre, then add another 100ml's.......If the oil is just showing on the end of the dip stick with the bike upright on level ground, then that is enough. The leak is probably from between the output shaft bush and the input shaft, common leak if the box oil level is a tad high.......and/or if the output shaft bush is excessively worn.
 
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