Will Chemtool b12 hurt my snowmobile carbs?

[magicbeers]

I bought a bottle today and would like to use it as an ongoing maintanence procedure with my sled. I'm concerned about the strength of this product since the floats in my carbs are plastic. Mikuni TM 40's. What about the new multi use STP that is sold in the same looking bottle as Seafoam and Chemtool...anyone ever try that product yet? I like Seafoam, I've read good things about Chemtool, however I feel like a nutcase when it comes to gathering information about products like this. Same goes with 2 stroke oil!! It's like OCD or something.

 

[Quest]

I'd be more worried about B12 chemtool on rubber o-rings within carb, not the carb float itself (provided that you are not using chemtool full-strength but to mix it with gas (feed into the fuel/carb system).

Q.