3120 Industrial Drive
Yuba City, CA
(530)674-9123




This dyno chart shows the effects of the RPM adjustable ignition trigger on my R1. Because of tolerance differences in various stock ignition components, no 2 R1's will have the same timing curve straight from the factory. Therefore, installing the adjustable trigger at 0 degrees advance may or may not be equal to the ignition curve given by the stock ignition piece. As you'll see later (in the chart below), there was a 2 hp difference between the stock ignition piece on my bike and the RPM trigger installed at 0 degrees advance.

This chart shows the effects of different advance settings on my bike with the RPM adjustable trigger. Dyno run 41(blue)is with the trigger set at 0 degrees advance. Dyno run 44(red) is with the trigger set at 2.5 degrees retarded. Dyno run 46(green) is with the trigger set at 2.5 degrees advanced. I tried a run at 5 degrees advanced but it came out a tiny bit worse than at 2.5 degrees advanced. As you can see, 0 degrees advanced turned out to be the best setting on MY bike. Please remember, YOUR bike will be different. That's why these ignition triggers are made to be adjustable. After seeing this, I can't imagine why anyone would buy a fixed position ignition advancer.....it's a total shot in the dark at changing the ignition curve. A non-adjustable 4 degree advancer may advance your timing 6 degrees on your bike while advancing the timing only 2 degrees on your buddies' identical model bike. This is because of those production tolerance differences in the factory ignition components.

The RPM ignition trigger is very simple to install. All it involves is removing the ignition trigger cover on the right side of the bike directly in front of the clutch. The trigger is held on by 1 bolt. Adjusting the trigger is accomplished by loosening 3 small allen head screws and rotating the trigger assembly. You can make adjustments in 5 minutes while on the dyno. I found the trigger to be extremely easy to work with while on the dyno and that it gave very linear results that could be easily tracked.


After playing with the different advance settings, it sure appeared that I had picked up 2 hp with the RPM advancer set at 0 degrees advance over the run with the stock ignition piece. To make absolutely sure, I reinstalled the stock ignition piece which is shown in Dyno run 51(blue) and then immediately reinstalled the RPM advancer at 0 degrees advance again, Dyno run 54(red). Sure enough, a 2.0 hp gain just like I had seen the first time. The torque gains are even more impressive than the hp gains. The RPM advancer even helped eliminate part of the 3-4K torque dip caused by the full exhaust system. What's even more impressive is that during these tests I was still working the jetting out with the K&N filter and was still too lean at the time which was killing off a couple hp. The RPM trigger tended to further lean out my jetting on top BUT still managed to give me a 2 hp gain. With the proper jetting this would probably be more like a 3 hp gain.