Triumphrat

NorthernThrux

I too have had the same issue with Dyno Jets and I think it has to do with the wasted spark. They use an inductive pickup and you start to get cross talk from the "dead" cylinder ay higher rpm. It's a radio frequency interference issue, not a ground issue. Using the negative lead on the ignitor as the LM2 does avoids that issue.

__________________
2008 Thrux. 1087 TPUSA motor. For Sale in the classifieds

mikeinva

That could well be it.I wish i could see what these motors look like on a old sun scope (lol if i still know what im looking at) I wonder what happens at hig rpms.

__________________
Why do I feel young on my bike

RumRunner

I'd love to hook up the ignition to a scope and see what it looks like through a power run.