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Briggs & Stratton 16hp starts but runs rough spits and backfires with choke off
- Thread starter JLOCKE
- Start date
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Export threadMost likely cause... The issue shows when the choke turns OFF. This results in several areas to investigate...
If Ethanol is the issue, then I highly suggest you start using a cleaner/stabilizer, such as StarTron. From now on.... pour 1/2oz into your 5gal main fuel can, and allow that to work its way into all your small engines.
Hope this helps.
- The choke may be physically opening (turning OFF) too soon. A cold engine does require a 'rich' mixture. So there may be some mechanical issue (dirt, grass clippings, etc) that need cleaning, or a minor choke adjustment.
- OR, the choke may be operating 100% correctly, but the mixture presented by the normal carb jets is abnormally 'lean' due to minor Ethanol clogging. Thus the choke turns OFF as it should, but the super-lean mixture is too lean for the still not-fully-warmed engine.
If Ethanol is the issue, then I highly suggest you start using a cleaner/stabilizer, such as StarTron. From now on.... pour 1/2oz into your 5gal main fuel can, and allow that to work its way into all your small engines.
Hope this helps.