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Were you able to confirm that with a timing light? I am concerned, because my current specs for the reluctor show the possibility that there is some overlap of the pick-up coil and reluctor. We are going to try to measure a small pin flywheel's reluctor location to the pick-up coil, since both...

This picture will make it easier to visualize. I think that part of the problem is how Borut illustrates the static angle. Bill M.

Look for an exhaust or fuel leak. If either occur the engine will start in the water, but it will just crawl along at wot and never get on plane. Another possibility is a rag stuck in the exhaust or water box. It is common for people to forget the had a rag in the exhaust hose, pipe or...

Old post but, This was not a fuel pump problem. It is a common carb problem. Bill M.

I understand this, but I still need a little help to insure that the reluctor on our custom flywheel is correct. The standard static angle for a Kawasaki is 56 degrees. We have measured the stock reluctor (lump) as 42 degree duration. So the reluctor begins at 56 deg BTDC, and ends at 14 deg...

The MSD has a weaker spark when compared to the Zeel, but the MSD has 2 sparks. So it has a longer duration. What I am hoping for is reliability. We are on our 2nd MSD, and 3rd Advent. Bill M.

Thank you all for your help! I have been trying to balance these two statements with what I know from this thread. Since I have not designed a reluctor before, I have been a little stressed. Important! Static angle has to be greater then maximum ignition advance! Example - If maximum advance...

Earlier in this thread, the subject of static angle said that there could be timing instability if the static angle was greater than 45 degrees. I believe that didn't matter for a 2 lump system like the Kawasaki and Yamaha because the cdi was reading 1 lump every 180 degrees (or 2 lumps per...

I am going to machine the reluctor (trigger, lump) in a few days, is the any recommendations for the end point ,and the start point (in degrees). The ignition curves we are using right now begin at 18 deg and max out at 30 degrees, but I want room for a 34 degree max advance. Seems like a...

I purchased an "advanced 2 channel programmable DC-CDI" and now I need to fabricate a "single lump trigger" and like many I am confused about the "Static Angle." I need some help designing the trigger lump, and confirm or correct me on what I understand the Static Angle is about. Basically the...

That is why I don't like primers. Primers eliminate the symptom (hard starting), but they do not fix the engine problem that caused the hard starting. Back in the late 80's and early 90's when Jet ski's were popular, customers would bring in their 440/550's for tune ups before a vacation, and...

That engine must have been hard starting or it had other carb problems, caused by the leaking front main seal. And it must have been making a Rorrr sound from the rusted main bearings for a long time before it seized. That ski was thrashed. Did it have a fuel primer? Bill M.

It has been my experience that a restrictive air intake system can be used as a tuning tool for a new set-up because it can prevent a wot seizure. Bill M.

It is not likely the water is coming from the fuel. Water does not freely pass through jets while the engine is running. (for lack of a better term) Water density or viscosity? is greater than gasoline, so it tends to plug jets under running conditions, and cause bad hesitations, drop a cylinder...

IMO, Long term reliability is important for our toys. For that reason, I recommend spending more money on a few items. Try to find OEM main seals that are still in their Kawasaki packaging. Keihin carbs develop hard starting problems. If you are going to purchase a rebuild kit, purchase a...

Before this post, I was under the impression that your problem occurred in a straight line. Now it sounds like your issue is X2 hull related (unless your impeller's leading edge is dinged up a little). It has been too long since I used to ride X2's, but the X2 rider I tune for uses a Jet...

The stock X2 hull is not the greatest. In order to have a reliable engine, you need to match the exhaust port duration with the pipes tuned length. On many engines the peak HP is located at 6500 to 7100rpm. When your pump limits peak rpm to less than peak hp rpm, the engines reliability can...

Unfortunately that isn't a part #. Maybe the part # is printed on the back side? At least their advertising on the package is honest. Nothing about gains with peak HP, only gains in acceleration. Bill M.

I think what you want is an impeller that accelerates better? There are 2 different ways to describe acceleration on a watercraft. An impeller can accelerate from idle to ~7000 rpm quickly, or the watercraft can accelerate faster in feet/sec. An old Solas with 12 degree leading edge may...

I know, it is broken, so it needs to be welded. But why does it need to be welded? It has been my experience that a Nikasil can sustain more abuse than that, and not loose any HP. Nikasil is a very durable coating. Is chipping a real concern? Or is that a ring end gap location? Good Advice...