oil pump ?

[sgp56]

I was wondering how do you can tell if a oil pump is working correctly? Thankx

[Howard]

I know the one on my old 350x went bad, it was real hard to turn the oil pump gear.

[thefox]

What trike? The Yamaha 200 and 225 have a check bolt on the topend. If you remove the bolt with the engine running oil should pump out.