Recent content by mikidymac

The first thing you need to do is measure the outlet of the Factory Pipe. If it is 34mm do not run it as it will melt down the rear piston. If it is 38mm it can be used. Find a stock head and get rid of the Westcoast Head. You will have to run race gas all the time with the pipe and the head...

951 uses a gasket instead of o-rings like on the 787 and smaller engines so it is much more difficult to get a good seal if you are just going to "pop the head" and have a look around.

If you have OPAS on your GTI is is controlled from the pump, the linkage is your reverse bucket.

Some of the cheap rpm gauges don't sample fast enough to do much good. I only use TinyTach brand ones.

That engine is toast. You are going t need to pull it apart and check for rust and damage.

Also make sure you use the proper API-TC oil in the Seadoo's, not the yamaha TCW-2.

No and nobody can tell you that, all depends on use and maintenance. General rule is 200 hours but then again the can go longer or shorter depending on fogging, water ingestion and oil used.

Step 1 is to verify the PO actually used genuine mikuni parts including new needles and seats and follow the Carb Rebuild Sticky. Make sure the accelerator pump is squirting. Make sure you have slack in the throttle cable before messing with the idle.

50-60 degree water should not cause any issues, you just need to let them warm up before hammering on them.

2000 Challenger 1800 is the Mercury 240 not a Seadoo Carb engine. I have moved your post to the Mercury sub forum.

I would suggest WSM top end over SBT.

1996 GTI with a dual carb 720.

No, just didn't think SBT used the "L" upper ring.

No point in cost cutting on a Di. Best quality is OEM.

Do not mess with the timing, align the marks and move on.