2008 Dyna supeglide custom, new battery. Standing voltage 12.7, cranking voltage 10.9, charging voltage 13.9 pronblem i have it takes ages to start, backfires, grinds, cranks and takes a while to start. Once it does it runs sweet but quite embarrasing at servo or the pub and it sounds like a sick dog. Just done the 30k service, new plugs, all the oils but this has me fucked and cant work it oout, been doing it for a while now.

Any help appreciated and thanx in advance. 

Doing it before the service? Does it when it's hot or cold or both?

doing it before the service hot and cold, but was showing a mate tonight when cold and fired up straight away, so, i dont know, got me stuffed. 

doing it before the service hot and cold, but was showing a mate tonight when cold and fired up straight away, so, i dont know, got me stuffed. 

Staring simple, I'd make sure the exhaust and whatnot is done up tight, but I'd be leaning towards ignition timing. Someone on here will probably have a better idea though.

Yweah a mate said that so i will put the dyna jet tuner on tomorrow and check it out cheers.

Yweah a mate said that so i will put the dyna jet tuner on tomorrow and check it out cheers.

Sounds like my 2007 Street Bob... it's been like that on and off since not long after I bought her new. Happens more if I try and start her in gear with clutch in. Always select neutral now.

Was told it was the starter clutch, but I'm not so sure.

 

Mate had a similar problem on his 99 Dyna, turned out to be a faulty crank angle sensor.

Compensator ??