Hi, I have a 1982 harley Davidson sportster, My problem is itll have spark then lose it. I'm not a mechanic only know basics, I have a book but cant make sense of it. Any help would be appreciated if I fdidnt provide enough info. Just ask and I'll try to explain more. Thank you.

 

it'll have spark then lose it....how are you determining this? What are you doing? Is it not starting? It is normally you have spark or you don't.

 

More info please.

Riding it? Does it die? Won't start? Have you physically checked for spark?

 

We're going to need a lot more information than that before even hazarding a guess at what's causing this intermittent fault .

 

Possible causes:

1. Loose Ground Wire
2. Loose Battery Cable
3. Loose Coil Wire
4. Bad Coil
5. Bad Battery
6.............

Start by removing, cleaning and re-installing your ground cables and battery cables.

 

Are you losing a spark at idle, or while riding? Are you allowing time for the bike to warm up? Are you sure it's the spark and not something like a clogged jet in the carb? Could also be a number of other things...bad coil, plugs, old wires, bad/loose ground...the list goes on.