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Wax, Is there a reason why the PDCIS-02T isn't equipped with a tachometer lead? Bill M.

Your compression gauge reads low. Did you remove the inspection plug of the front cover? The most common problem is the front main seal leaking vacuum. That is why a pressure/vacuum test is necessary. Or test the front main seal with the engine running (ask). How did you apply the pressure...

It is a mock-up of an industrial (Large Boat) 2 stage pump. There are similar 2 stage examples with boats and airplanes. Bill M.

That is why I asked about the reluctor on the Kawasaki street bikes And you answered my question. The PJS 750 flywheel looks like a platter or a SeaDoo 785 flywheel without the magnets, or a Yamaha/Kawasaki flywheel with the magnets and lump completely removed. All I need to do with the is...

@Quinc the ATP TS2 TL system has an option to fire twice. Thank you Quinc, but I am working on a 750 X2. @waxhead I think it fires the same coil 10 degrees after wards, I cant see the point of that. Unless the ATP TS2 has a second boost converter and capacitor like the PJS Type 2 did, my...

Has anyone measured the Yamaha oem retard curve on the rear cylinder? I was told that Yamaha triples twisted 2 to 4 degrees. So I am curious how Yamaha handled twist on the 760. Was there any other sensor inputs to determine the load? or do you think it only reacted to the rev limiter. Wax, did...

Sounds like an exhaust or fuel leak. Bill M.

The stock exhaust manifold tends to foul spark plug on the rear cylinder because the cold water enters the rear of the exhaust manifold. Doubling up the carb base gaskets on the top and bottom of the throttle cable mounting plate will improve starting reliability by preventing a common vacuum...

This is how it got started, look at my attachment from the early X2 manual. it clearly lists the carb as a CDK34, but for some reason Kawasaki listed the venturi diameter as the size. I have always measured at the flange or spigot of all motorcycle and watercraft carbs. It is close enough...

Does it have a SS impeller? Bill M.

You need better priorities. At this point your 440 is a good kids, or a wimpy girl ski. Unless your brother is a lightweight, you need to concentrate on parts that will help the ski come out of the hole. More power will make it more ride-able. That exhaust manifold needs to be replaced and you...

Really!!! That is myth, not fact. Just look at a Kawasaki jet ski specification manual or the X2 repair manual. If you use the same logic that a CDK34 is really a 28mm carb, then try applying that logic to the Mikuni SBN carburetors. Sbn 46 would actually be a 42 Sbn 44 would actually be a 40...

Testing battery voltage is common, but can lead to misdiagnosed problems. Back when I was a young mechanic; charging systems were easy to diagnose, but difficult to confirm the parts that were replaced were actually working. This was because Kawasaki promoted using the battery voltage test...

Probably the most common carb problem on a 650. The needle and seat isn't opening because of a vacuum leak Stock 650 carbs are 34mm (not 28mm) and were later upgraded to a 38mm carb. Bill M.

650 engines have problems with the piston rings rusting when they are exposed to moisture inside the exhaust port. As a result the ring barely makes contact with the cylinder wall on that side of the cylinder. It is common for good quality compression gauges to read 30psi low. Hopefully part of...

On the 44bn damaged throttle plates were easy to remove because the throttle shaft was cut so the throttle plate laid on top of the of 1/2 of the shaft. On the SBN series, the throttle blade slides through the throttle shaft. So when the throttle blade is flattened on each side (of the...

On stock throttles the threads on the screws have been smashed (compressed) to prevent them from falling out. Before you try to remove the screws, cut the exposed threads down to the throttle shaft with a porting tool or dremel. Smash or compress the threads with a pair of needle nose vice...

JH is a sit down designation. CE is a "C" series engine from a ZXI. You need to look at the casting #'s on the cylinder and head to determine where they came from. It appears as though you bought a ski that was assembled from a box of parts. Bill M.

Is this a common problem with Yamaha's? I don't recall seeing that happen to a Kawasaki before. Is that something you have seen on MX bikes, I have seen an engine builder regularly cut the cylinders to move the reeds forward. Bill M.

Both reed cages have the same wear pattern and same orientation (all the wear on the top or bottom). I would guess, those are the "thin" reeds? Not the medium or thick reeds. Bill M.