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The throttle shafts arent hollow, I was referring to the inline coupler. Mikuni couplers use a hollow cushion that goes over the shafts so they can be very close together. I have also used an aluminum spiral cut coupler that was hollow. I got an 8mm x 8mm from Ebay for $10. If I have room...

FWIW, the GM 5.3 truck engines up to 2006 have been remarkably reliable. So far myself and a friend have near 300k on ours. We will find out just how far they will go. The rest of the truck isn't doing as well. Overall Im happy with my $3000 Suburban. I still consider GM as "Garbage Motors" and...

Crossover manifolds do make idle to 1/4 throttle smoother. They will also require larger pilot jets and possibly larger main jets. I have always been able to get good response with 115G springs over a 2.0-2.3 N/S. If a carb cant open a 115G spring then its too big for the application. Pulse...

I’m not very confident these new cars will have much life left after ten years. At least not without some expensive maintenance.

I recently put a pair of 44s on a R&D 750 manifold. These manifolds place the carbs closer together and make mounting carbs more difficult. The driven carb needed the throttle stop cut, it needed 90 degree fuel fittings, and its shaft cut. The shafts were almost touching so i used a Mikuni...

More like the max debt limit!

The system in place works great as long inflation doesnt get too high. The rich are getting what they want AND the poor are relatively happy. It is looking like we may live long enough to see the outcome of a national debt that taxes can't service.

One problem I had with an overly rich pilot/popoff was those times I had to cross a lot of rough water at slow speeds. It sucked the tank dry nearly twice as fast. I agree most riders overload their engines and are then very hesitant to change it. Changing an impeller is a lot harder than...

You can power tune the main circuit. A little rich of peak power with good response is all there is to it. Nothing else matters when its at full throttle.

Thats a Coffman Sizzler with the curved tailcone for WR3. They work really good.

Nice condition is a lot easier to say than it is to actually find.

The 44 SBN was never used on stock Kawasakis. The Piston port 550 used round pump 44s and the reed engines used a keihin 38. Aftermarket SBN44s are painted either black or gold. They come with different jets. Singles carbs always need a larger main jet because of lower peak vacuum. Quarter...

It could be in limp mode if the wires from the CDI are touching.

Cavitation comes from an air leak or disturbance in front of the impeller. Make sure the pump is sealed to the hull and also make sure the rear grate bolts did not punch through the plastic inlet shoe. There could be an air leak at the driveshaft carrier.

The lower half will be out of money soon, then prices will collapse.

My experience says keep at least 1.6” between the port and deck on 750s. If you raise the exhaust port higher it takes better tuning skills to get good response.

I was referring to the exhaust open duration. The small pin single carb cylinders were 178 degrees open. The early sitdowns were 178 for single carbs and 184 for twin carbs. Most of the big pin cylinders ran 192. These high ports make great power with a pipe but can also be very slow to respond...

You can get away with that for 1- 2 minutes and it’s actually beneficial. Everyone else will look confused. They are the ones that end up selling their rusty crap here.

Your porting is basically what the factory did on sxr800. The carbs must always be retuned whenever any change is made. Open the top screw and leave it on the rich side of peak power. It’s more difficult to melt a piston that way. If it is the 178 degree the exhaust port it can be raised a...

You want to remove as much water as possible. Do a second run when you get home and see how much additional water appears. I think doing a second run will help a lot over time.