Recent content by mikidymac

Well the injection oil lubricates the crank bearings, rod bearings and pistons even diluted with gasoline so it should be perfectly fine for the brass gear and shaft bearings and full strength. Seriously, you are overthinking this. Think of the thousands that are still running with this oil and...

The oil doesn't circulate so the debris for the rotary gear can't get to the oil injection part. Also there is and inline oil filter for the injection pump.

Easy answer to your questions. The gear and seals were designed to use API-TC oil so just use API-TC oil. I have never seen one fail in 35 years of working on these that didn't have mechanical damage cause it, like a bolt down the intake. Also make sure you pressure test your new used engine...

It would become another hobby I go 100% into and don't need, LOL. Good thing we don't get snow here.

Always a fun oil debate. Can you run TCW-3, yes but you should not. It is a lower spec oil that is used mainly to protect the marine environment. For a lower output engine it is fine like outboards and other watercraft and even a 587 should be fine. It has been known to cause inner crank seals...

Great pictures but...... Are you installing it? Selling it?

Carb looks very clean. Never messed with snow machines but always thought they would be fun.

I do remember these washers being added at the factory for some skis. I don't recall the rhyme or reason or models though. None of mine have had them.

Do not change plug heat range, has nothing to do with our issues. Have the injectors cleaned and tested and make sure the two filters in the tank are clean. I have heard mixed reviews on the Quantum pumps.

Exactly. Like I said, I have run seadoo oil that was bottled in the 90's and oil in my skis that have sat for years. Not a single oil related issue, or any issue for that matter in 35 years. This is speaking oi oil injection with clean oil in the oil tanks. The only thing I have seen kill...

WOW! That bar pad looks mint.

A 951 with 400 hours will never be a "Top End Only" Rebuild. The balancer shaft and crank will never survive.

No, it doesn't go bad. I am still using seadoo oem oil from the 90's. The only reason to remove and replace it is if you are not 100% sure it is API-TC rated oil or if you are switching brands. you should also change the inline oil filter when switching oil also.

70-90's tech is where these are at so you should be good to go.

If it was me I would find a 2002-1998 XP limited if that is the hull you like. "Does not start" Needs fuel and air system rebuilt? This is the worst thing you can hear on a Di and can cost thousands. what is the compression? The DI engines are expensive to maintain and with that many hours...