'98 70hp ETLF leaks oil in carbs when tilted

[Marcos B]

Hi Guys,
My '98 - 70hp ETLF, oil injected 2-stroke, leaks oil into the carbs when the motor is tilted up. Makes it hard to start, fouls the plugs.
Once it's been running for a bit, no problems.
Anybody seen this before?
Thanks,
Marco

[rodbolt17]

only when 1 or more of the oil line check valves leak.
each oil line has a check valve.
the kien pump had the valves in the pump,the mikuni pumps used inline valves.
cant remeber when the 3cyl went to mikuni pumps.

[Marcos B]

OK, So I took off the oil tank and there are 3 little silver valves, 1 on each oil line coming off the pump. Should I replace them all or can they be tested, cleaned? If they're not too expensive just replace 'em?
Thanks for the help.

[rodbolt17]

expensive is a relative term.
can they be tested,yep.
its in the service manual which I dont keep here at my house.

[Marcos B]

Oil leak Fixed

Thanks Rodbolt,
I removed the check valves and sprayed some solvent in 'em, blew them out with the air compressor, and no more oil in the carbs.
This forum rocks!