I have been having a condition of back firing and piston knock at low speeds. This is worse when cold but eases up when warm but
getting worse. I checked compression and it seems good. I was starting to lean toward carbs needing rebuilt. The bike has 60,000
on it but I have no history. When heavy on the throttle is does not back fire only when cruising say around 20` to 40 mph. It is also
hard to start at times. If I choke when cold it may not start but if I
take chock off it fires but hard to keep running other times no problem to start. I know cars with one carb but bikes with 4 unsure.
Any feed back welcome. Had bike 2 years put on 12000 miles but needs work now.
Thanks
getting worse. I checked compression and it seems good. I was starting to lean toward carbs needing rebuilt. The bike has 60,000
on it but I have no history. When heavy on the throttle is does not back fire only when cruising say around 20` to 40 mph. It is also
hard to start at times. If I choke when cold it may not start but if I
take chock off it fires but hard to keep running other times no problem to start. I know cars with one carb but bikes with 4 unsure.
Any feed back welcome. Had bike 2 years put on 12000 miles but needs work now.
Thanks