[adz]

I have an SP1, it runs or ran beautifully. My brother left it outside overnight. I tried to start it with the choke on, it started twice but died. Tried starting it over the rest of the day and killed the battery. Put in a new battery, it cranks over, kicks once or twice and runs occasionally but only on back cylinder. What could be the issue?

 

[francisz]

was it raining?

 

[CBR_RR]

condensation in the electronics from overnight?

take it to a shop to get it fixed, that way you can hand the bill to your brother.

 

[Hessian]

Maybe someone came along and pulled off a lead or something dumb like that?

 

[adz]

condensation in the electronics from overnight?

take it to a shop to get it fixed, that way you can hand the bill to your brother.

lol not likely

 

[Johnnie5]

bad plugs , fit new new plugs

its got fuel ?

 

[The Dwarf]

V twins are very spark plug sensitive.
Throw a new set in and she should go.
I had an Sv that wouldn't go, turned out the last owner had mismatched plugs in her.
A new set and she started every time.