Looking for suggestions here... Have an '96 XCR 600 with 4500 miles on it. It has run great up until this season. Now it starts hard and will only run on half choke. Here's what I've done so far; Took the carbs off, soaked them & cleaned them up, drained the tank and put in fresh gas. I put in new plugs (spark seems good), new fuel filter (including tank pick up), and a new fuel pump. I've heard that these motors are prone to bad crank seals, so while it was running I sprayed carb cleaner around the bottom of the engine with hopes that I would here a change in the idle -I didn't. Seems to be a fuel issue, but I'm at a loss -Any help is appreciated!