Wasted spark is where each cylinder gets two separate sparks, the second one occuring on the exhaust stroke, a.k.a Wasted Spark

I'm trying to calibrate a dyno device and the directions call for that information.

anybody know off hand?

Thanks
Dean

 

no they shouldnt have that type

 

Yes , I think we do

 

OK we're in a dead even heat :-)

Anybody have, shall we shall say, imperical knowledge? ie., you were holding a plug wire and got lit up on the exhaust stroke, or possibly have seen the specifications listed in the factory manual?

I have a CD manual but haven't found it as of yet.

Thanks to the guys that offered their knowledge thus far.

Dean

 

Ours is a wasted spark design. The coil fires 2 plugs at the same time. That's why we have only 2 coils.

 

Exactly correct. All wasted spark setups have half as many coils as they have pistons, and each plug recieves a spark on the compression stroke and on the exhaust stroke.

Keith