I'm trying to get my dad's 99 MXZ 600 running properly for him. He hasn't ridden it in almost 2 years. Last year I took apart the carbs and cleaned them. Now, I'm trying to fire it up so we can ride, but the PTO side wont fire. I've got lots of spark, tons of fuel, and 105 PSI compression. As you can see by my profile, I'm a Polaris Guy and don't know much about Ski-doos. If anyone has any idea as to why this thing won't run, any help would be greatly appreciated!!!! :dunno: