Usually 2nd gear is more prone to damage. Tell me your symptoms and i can pinpoint the problems. Gearbox problem is bullshit as for that you have to open the whole engine.
Don't open the engine in hurry.
Change that washer. Leakage will stop.
Updates on my Bike:-
Change both the front and rear tyres.
Front- Since 2.50-18 tyre is not available any more fitted 2.78-18 tyre. Ceat secure Zoom. Difference is that front takes more distance to turn.
Rear- Fitted my favourite tyre. Ceat secura M86. 3.00-18.
Now speedometer needs to be changed for correction in reading. Also Have to increase the rear sprocket by one teeth to accommodate changes in gearing.





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