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Spark arrestor on a new Generac

Posted by tom_nwnj z6 NJ (My Page) on
Thu, Nov 1, 12 at 12:54

Hi, have a new Generac (17.5 Kw) with less than 20 hours. The spark arrestor fell off. It's just a connical screen with a collar. Seems to have had some threads on the collar to hold it to the muffler pipe. The threads are now gone, and probably need a new one.

Question is, on a new 4 stroke gas engine, can I run for 20-30 hours without a spark arrestor? (Seems they are more important for engines with carbon buildup.)

Follow-Up Postings:

RE: Spark arrestor on a new Generac

Please post a picture showing this matter to help toward a suggested repair. IMO, running w/o a spark arrest is a concern when you have possible fire conditions from exhaust sparks (as dry grass and etc in the area).

RE: Spark arrestor on a new Generac

Well, here's a pic from Google, looks like the one below. Really just wondering if a spark arrestor is necessary on a new 4-stroke engine. Probably take at least a week to get another one.


RE: Spark arrestor on a new Generac

The spark arrestor itself doesn't affect the runability of the engine. It really does as the name indicates and is there to lessen the chance of fire from tossing a spark from the exhaust. You may be thinking of the practice not to remove a screen from a 2 stroke as some tend to remove them rather than to do proper maintenance or address the cause of the plugging- IE a rich mix or plugged air filter.

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