1vj oil pump
 

Hi you lot, hope you can educate me a wee bit.
I've got hold of an Italian import 1vj with 60,000 kms, which seems to wet sump big time. I have already replaced the ball valve in the clutch casing. Going through previous threads suggests that the oil pump is worn. A 3aj pump seems to be accepted wisdom. A call to the local friendly Yam dealer revealed the 3aj mk1 and mk2, both with different part no's. Which will fit my blue bomb? In due course the engine will be cracked open to find the state of the gearbox, but at present the box is smooth and quiet.
On a different note, the best cure for bad starting that I have found is,believe it or not, a centre stand. Seems she likes to be steady and level.
Is she a she or what???????

Oil pump
 

Hmm, I never noticed this, I just replaced the oil pump on the 55W with one from a 3AJ. mk1 or mk2, I do not know.
Highly likely that they will both fit.
To make sure, ask the guys at www.kedo.com. It is a German company but some of the speak English so will be able to help you.

Auke

Thanks for reply. On going to dealer in person, 1vj pump was superceded by 3aj. The guy was getting mixed up about the 3aj variants. It was listed as a set, so hopefully includes 3aj drivegear and o-rings. We shall see! Was there a oiling mod done for 5th gear, and if so can it be retro-fitted to 1vj? Just trying to keep her going as well as I can. My old XT500 didn't seem to be so finnicky.