Activity Stream

All of the major bearing manufacturers sell various lines of Chinese made bearings. While manufactured in China they are built to each companies...

Boat is currently under construction so pics wouldn't help much. Its your basic 14' aluminum vee with two pedestal seats and a front deck with...

Boat is currently under construction so pics wouldn't help much. Its your basic 14' aluminum vee with two pedestal seats and a front deck with...

Soon >>> I also put a coat of Wearlon F1m, I tried it on my C hydro and after running a few seasons prior, I knew if there was a difference it would...

Sometimes its tuff to tame them and settling for it to smooth down at top speed is the best it will get. Outboard race runabouts are prone to...

Been awhile. Lets see pics of the trim tabs and the tapered pad you made. Maybe video of rig running?

All this time later, a conclusion.. I made up these trim tabs to keep the nose from popping up, probably about 30 deg. . They were on the outside...

I’m working up a tapered spacer to tuck the motor in but I had it out for a couple weeks to modify it as it had too much taper originally. This is...

Props are only as good as test results, different per boat or motor Genrelly if you do change a prop it only makes sense to try different settings....

Thanks pprint! Especially for the jet chart, that will give me a better starting point than trying to suss out the info from different threads. ...

Jet chart picture rotated correctly. Rob

These are pictures of the Link&Sync instructions in one of my service manuals. Maybe it will help. One picture is a factory jet chart. Rob ...

Quoting myself here to keep things coherent. Took the boat out and saw no improvement in speed. I was able to trick it into idling with the...

Quoting myself here to keep things coherent. Took the boat out and saw no improvement in speed. I was able to trick it into idling with the...

I also see in the pic that you set this up as a 31.8 manifold.

The Mikuni slide carbs will probably perform better to start with. I made up a manifold to accept a 2 barrel carb from an OMC 85hp. Each barrel the...

That looks like a nice setup, but dual carbs seems like it would be a PITA. OK, I got my 1 3/8" carb on and it starts and runs but the idle jet...

These are the flow numbers of a stock reed plate versus a Yamaha 500CC jetski V reed block shown in the pictures. Rob

I will just leave these here for discussion fodder.

Generally above 7200 + or - is about it, a bearing cage fail is the likely reason. Not that an engine couldn't be built to go more but the weight...

Gotta love the racing togs!

MotorBoating magazine - July 1931

Thanks. That makes sense. Maybe I will get a chance to verify for myself soon.

Sometimes you can get an indication from comparing the parts catalogs for both motors. Looks like the driveshaft top bearing is shared as well as...

Thanks. That's about what I would expect. I actually have a long and short driveshaft from a 25/30 so I could do a shaft swap, however, I haven't...

I had brought 2 shafts in with me to get a quote, and it was approx 1.5 or 2 hours of shop time for both (approx $95 CAD per shaft). Turns out, for...