05-08-15, 12:38 AM
I had a similar problem with a blade, the bike would not rev past 8K, although it would in neutral. It spent 4 days strapped to a dyno and we changed all sorts, carbs, ecu, tps, crank sensor, cable tied the side stand switch, changed the loom (twice) etc. It was carburating perfectly up to 8K (100BHP) but then rev no higher. I rode it like this for two years, eventually I got fed up and linked out everything that could stop it running at the connectors closest to the loom, clutch switch, neutral switch, side stand switch, rode it and it was perfect, by a process of elimination I figured out that the cable which went from the connector to the side stand switch was faulty and would short out at 8K. Weird but true.
So before you start swapping big stuff like crank sensors and stuff, just try linking out all the stuff that could stop the engine at the closest connector to the loom, its worth a try and at least you will be able to discount the simple stuff cheaply and quickly, unlike me.