Zipper kit on my 80HP running rich

[WWhunter]

Removed cowl and both sets of floats. They are basically at the maximum+ weight for the pair. My postal scale didn't quite seem consistant so I use my powder scale....no, not for that kind of powder...the one I use for reloading ammunition. It measures in Grains and I converted it to Grams.

Weights are:
#1 4.328
#2 3.648
#3 3.427
#4 3.226

Thinking that I should be replacing them. Now to find them in stock!

I read awhile ago that MS was making them also. Anyone tried them?

[Av8r3400]

According to Hal, you should jet and tune the carbs as you would a standard 100 hp ULS engine. Also switch to the DCPR8E spark plugs. I prefer to gap at .021-.023" for better starting.

[Rodney]

Checked on the MS website and they are making the Rotax Carb floats again. $165 for a set of two.
May buy some just to have on hand for when the Rotax floats go bad.

Rodney

[avidflyer]

Just looked on the CPS online catalog, and the pair of floats are $131.75 Item 12 in the parts list. I know I'm going to regret asking this cause it will come to me as soon as I hit send on this message, but what company is MS JImChuk

https://www.cps-parts.com/catalog/rt...ngconstant.php

[desertdave]

I'm going to regret asking this cause it will come to me as soon as I hit send on this message, but what company is MS JImChuk

Marvel-Schebler
https://msacarbs.com/product/rotax-b...loat-ms80-430/

[WWhunter]

According to Hal, you should jet and tune the carbs as you would a standard 100 hp ULS engine. Also switch to the DCPR8E spark plugs. I prefer to gap at .021-.023" for better starting.

Yes sir, using those plugs and gap.


I found an old set of floats in my hangar and weighed them. All 4 were about 3.2 grams. I can't remember if I replaced them when I rebuilt the carbs due to being heavy or just did it because I had new ones in the rebuild kit. They may have been heavy and have dried out after sitting on the shelf. I'll let them soak in some fuel for a few ys and see if they gain weight.

Probably just smarter to order new ones from MS. I did call them today and as has been mentioned, they have them available again.