HB .61 muffler

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

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HB .61 muffler

Postby joebugs1 » Mon Jun 12, 2006 5:24 pm

Perhaps I should be addressing the parts dept, but I'll ask here anyway. I've got 2 HB .61's, one came with no muffler and one had a K&B .61 muffler with it. I know that the K&B mufflers are still "in process", :roll: but you have the HB mufflers listed as in stock. What is the difference between the two stock mufflers, and will it make any difference which one I use on either engine.
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Postby MECOA » Tue Jun 13, 2006 10:24 am

The HB muffler is slightly larger and uses differrent screws. K&B is a 5-40 thread and HB is a 5-44 thread, both are US threads. Either will work on your engine.
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