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Canadian Daves JustKDX
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[QUOTE="Canadian Dave, post: 75392, member: 16102"] Will Boyesen reeds help? I expect they would by they likely aren't the solution to your RMXs hard starting problems unless the reeds you are presently uses are worn past their service limits then changing the reeds to either the stock or Boyesen reeds would be a big help. At start up the engine is cold so the incoming charge or fuel easily condenses on the cylinder wall, crank, case etc etc and not enough fuel is vaporized to allow the engine to fire. The fuel is there just not in a form the engine can fire. The choke dumps additional fuel into the engine so that there is enough vaporized fuel to fire due to the shear volume of fuel. Fuel is drawn into the cylinder via the pilot circuit so as the size of your pilot is reduced so is the amount of fuel at start up. Try to get MX Tuners attention on the Performance Forum. He ran RMXs for a number of years and can likely give you the guidance you're looking for. I'd also suggest calling Jim Couster at CC Cycle in Westlock. He has a pile of experience with the RMXs including trips to the ISDE. David [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
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