HB.25 muffler pressure

HB , Helmet Burnhard, engines, Made in Germany. Owned by RJL Industries since 1989.

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HB.25 muffler pressure

Postby Anthony J. Natale » Mon Feb 28, 2005 5:11 am

I have a nib/old HB.25 that has a Perry carb and no muffler pressure attachment. There is however, a boss on the muffler (undrilled) for a pressure nipple. Do I need pressure with this carb/muffler set-up or not.TIA.
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Postby MECOA » Wed Mar 02, 2005 4:48 pm

No you don't need pressure with this engine. The hole is actually intended for priming.
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