1986 tohatsu 9.9 carburetor help

[gman2692]

I have a 1986 tohatsu 9.9b 2-stroke with the old style carburetor. I'm trying to get a carburetor repair kit for it but can't seem to find one anywhere. So what all is required to upgrade my carburetor if that's what I end up having to do? The info I find online says tohatsu put a newer style carburetor around 1993 and it doesn't fit the older models. Does anyone know of a carburetor or repair kit I can use, or where to get one? I believe the old carburetor part number is 397-03100-0. Thanks for any info you may have.
The issue I'm having is I cleaned my carburetor last year and it ran great. A month ago it ran great but the following weekend it would idle fine but when under a load and you give it some throttle it starts sputtering and has no power. Any ideas other than the carburetor?

 

[MattFL]

If I had to take a guess, I would say it's possible that something is clogging the high speed jet in the carburetor. I would personally start by taking it apart and just cleaning everything carefully. Look through the jets and be sure you can see light and they're not obstructed at all.

 

[pvanv]

Yep. Old style carb is NLA, and no kits. Some individual bits are available if needed, but I agree with Matt. A good cleaning first.