electrical problems

[Craig54]

81 gs 1000
went for a run and every thing was going great when she cut out.
good grief..
I pulled the plugs out on the 2 outside pots to check for spark and found the right side no spark when cranked over
feft side sparked without turning it over
wierd..
any ideas where to start?
replaced the final transitrers about 6 months ago
thanks
craig54

[tom203]

I need a Fosters to translate this, but it's too early! Outside plugs ( #1 on left as you sit on bike and #4 extreme right) sparking strange- as you know they should fire together and only when triggered by ignitor. So you replaced some transistors- in the ignitor box? were you having same problem before they were replaced?

[Craig54]

electrical problems

I need a Fosters to translate this, but it's too early! Outside plugs ( #1 on left as you sit on bike and #4 extreme right) sparking strange- as you know they should fire together and only when triggered by ignitor. So you replaced some transistors- in the ignitor box? were you having same problem before they were replaced?

I replace the transistor about 6months ago and its been running great until
now.

I pulled the plugs out on the 2 outside pots to check for spark and found the right side no spark when cranked over
The feft side sparked with the key on without hiting the starter

craig

[Nessism]

Did you install a Dyna S by chance? They throw a spark when turning off the key, although that is not what you describe.

Regarding the spark, the plugs fire in pairs: 1-4 and 2-3. For both plugs on one side to stop firing is very strange, and if the other side IS firing, that points to bad plugs and/or plug caps/wires.

[Craig54]

Found it loose wire....phew

[Redman]

Found it loose wire....phew

Good that you found it.

I am Trying to imagine what wire would make #1 act different than #4, since they are both on the same coil.

.