Jackpiner Carb

[husky450cr]

I have two 1972 Jackpiners...one with a 30mm Bing that runs great.  The other with a 32mm Bing that runs rich.  I have jetted as lean as Bing makes jets and it is still to fat.  I say rich, although I should quantify that statement...if I ride the bike, it screams pretty good.  But, this is my wife's bike and she likes to putt around so it loads up real bad.
Anyway, I am not having much luck locating a 30mm Bing, which leads me to my question...does anyone know of a supplier that makes a carb to cylinder boot or fitting to adapt a Mikuni or Keihin carb (or is this question total sacrilege...?)

Any thoughts would be appreciated.

Thanks.

Shawn Warner

[thrownchain]

Have you tried switching the carbs to see if that's the problem??

[husky450cr]

No, I haven't...  

Thanks for the reply.

Shawn

Shawn Warner

[john durrill]

Shawn,
 If the 30 mm does the same thing on the bike the 32 did you might try gearing it down. What sprockets are you running on the one that has a loading problem? If you can gear the bike down enough that your wife can stay on the pipe at a speed she is comfortable with it should run fine with the carb set up stock.
 John D.

[hrbay]

Shawn,  If slide is fine, you may need more air at idle and mid range for that engine, which would require a larger cutaway on your slide, it may just be too much carb.

GC