I've been running the pulse carb since last summer. I was super impressed the first time I rode the bike. Other than the TWIRP porting it was the most impressive mod to the engine. cycle the engine with the kill switch on then kick and the bike usually fires first or second kick when it's cold. Right off the bat you can tell something is different in the way the engine idles, smooth and consistent.
got even better when you rode it. The power is smoother through the entire rpm yet at the same time pulling harder. Rode it back to back With a cr500 with regular carb. You don't realize how slow a stock carb revs, it felt a lot slower even though it had a hard midrange hit. The pulse felt like it revved faster kinda 250 like. You can actually feel every time the spark plug fires on a regular carb, pulse was smooth and fast! The over rev is better also. Just for example with the same gearing and same stretch of forest road the regular carb bike got going 91 mph on the GPS and my bike got to 91 faster and kept going to 96ish... That was the last time I looked at the trail tech.
It's super forgiving too. When I first got it ran fine with the jetting it came with. I went up 10 jet sizes just on the main and it runs like never before now. I had the main crank seal blow out this summer and other than it blowing smoke like a train it didn't run any different.
Running an avid carb heater and thermostat right now which is the only heater I can get to clear my AF frame. It flows lots of coolant but been having carb freeze still. No carb jacket, lots of snow dust ingestion, and super crazy powder is to blame. Will be resolving these issues shortly.
Might be harder to get the parts then... maybe someone will make CAD drawings of them.
