Hello, a bit of advice please - I need to get the autolube pump on my DT250A serviced, so I want to fit a blanking plate and run on pre-mix for a short period. When I remove the pump, I can take out the worm shaft OK, but do I need to take the clutch cover off to remove the bush (PN 1371317600 ) or does it pull out from the outside? Thanks

Welcome to the forum. When your oil pump is off and being serviced it is not absolutely necessary to remove the worm gear. The worm gear will not wear out. If you leave the pump on without oil then yes the pump will burn out. You should be able to send the pump in and have it rebuilt by one of the members here. Others will guide you. You do need to take the clutch cover case off to put a block off plate.

On that model the worm gear pull right out... Not sure if it could fall out with pump removed.

Bushing does come out from in to out but not sure if you could grab bushing and remove without damaging something.

Maybe use a couple longer screws and attach a block off plate over the end of the bushing?

Might be safer to just plug the bush rather than remove it as should be in there pretty tight plus may not go back in as good or straight--even though it should.

Thanks for the responses - really helpful. When I was thinking about fitting a blanking plate, I was in '4-stroke mode' ie, thinking about oil leaking from the crankcase - obviously with a 2-stroke, there's nothing to come out, just need to protect things going in! I was also trying to avoid buying a clutch cover gasket as they seem expensive in UK (17.50 euros plus tax/post from CMSNL - a whole new subject that I could do with some further advice on). Thanks

As long as the gasket is not torn, I would imagine that it can be re-used.

Actually oil would leak out. That's the clutch cover and behind it is the transmission oil.

Yes, good point. I presume that normally the oil seal and oil pump spindle prevents gearbox oil coming out into the pump as well as stopping 2 stroke oil passing through the pump going back into the clutch?

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