Hi, i'd be glad to have any thoughts on a problem with my B25.
The bike accidentally fell sideway (to the left) in the garage and was not discovered until the next day. There was no damage.
Since then the oil tank empties itself by dripping out of the casing at the contact breaker cover. This happens over a period of hours.
It's almost like wet sumping, but it had never occurred before.
I can't figure out how this fall can have affected the internal gravity flow of oil, as I believe there aren't any balls or springs in the pump which could have been shaken loose.
I can't work on the bike at present due to lockdown, but advice would be most welcome. Flactem.
You have disturbed all the unwanted rubbish in the bottom of the tank and it has probably blocked the oil pump seatings. Take the tank and pipes out and flush it all. Clean the pump, flush the engine with cheap new oil and try again. Drop it round my house, I am bored stupid.
More likely it had wet sumped as the contents of the tank will fill up the crankcase and outer timing cover up to just above the gearchange shaft. My B25SS did this and whilst on the sidestand, tilted over to the left it was OK. When I fitted a centre stand and it was upright, it leaked.
Reason for mine was a previous owner forgot (or deliberately) left out the ball and spring check valve so there was nothing stopping the flow past the pump. Big benefit was it kept the bottom end nicely lubed during 3 years of storage.
Definitely worth checking aforementioned valve, easy to get at and fix.
Good luck!
Chris