Hey Everyone, I have a 2011 883 Sportster with 10,000 km's that is causing me some grief. Starts and idles fine, accellerates and cruises at highway speeds just fine. However when riding at lower speeds, eg. riding through town at 60kph it misses and carries on. If I change down, it will go ok until I feather the throttle to maintain my speed, then the miss/surge returns. Same happens on my road to get home. As the road is a dirt surface I need to go slower, mainly 3rd gear and it misses and carries on, sometimes actually stopping for a brief second.

I have checked my voltage regulator for charge etc. and it checked out ok. Have replaced the plugs, the only thing I have done different is I have had a new dash fitted with a tacho, fuel gauge etc 5 years ago and I can't remember if it was playing up before I had the new dash fitted or not. I have tried different octane fuel with no change in symptoms.

Because of the miss/surge I don't ride it much, fuel is always replenished each ride though. Maybe plaque in the fuel system, not sure.

Any help is appreciated.

Cheers

- The state of the air filter.  A dirty or blocked air filter may cause issues.

- Put some inector cleaner through your fuel tank next time you fill up.

These may not be the cause but they're simple things to do/check.