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Honda 5.5hp misfire/backfire

#1

K

khunter08

All,
I've got a Craftsman walk-behind mower with a Honda 5.5hp engine (model 917-388820). The engine is misfiring or backfiring. I can see flame out of the exhaust sometimes. The spark plug is dry fouled. I've cleaned it and re-gapped it to 0.030, per the manual. The RPM seem low and of course it doesn't run nearly as smooth as what I think it should.

I don't know anything about small engine repair, but with your assistance and/or a good manual I can fix this mower. Any suggestions would be most appreciated.
Keith


#2

ILENGINE

ILENGINE

I answered your other post on same subject.


#3

robert@honda

robert@honda

khunter08 said:
All,
I've got a Craftsman walk-behind mower with a Honda 5.5hp engine (model 917-388820). The engine is misfiring or backfiring. I can see flame out of the exhaust sometimes. The spark plug is dry fouled. I've cleaned it and re-gapped it to 0.030, per the manual. The RPM seem low and of course it doesn't run nearly as smooth as what I think it should.

I don't know anything about small engine repair, but with your assistance and/or a good manual I can fix this mower. Any suggestions would be most appreciated.
Keith
Click to expand...

any identifying marks on the engine? sound like a Honda GCV160 overhead valve . stamped into the side of the engine block is a serial number, usua jut with 3-4 letters and then 7 digits. let's start with that serial number and any modifications to thr engine, and I'll see what I ca dig up,


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