I Still having loads of grief with the MC18 I have fitted in a superkart chassis, starts fine and tick's over well,ok right up though the rev range until it gets to 8500- 9000 then the lower/front barrel just dies, been through everything from carburation to electrics to new pistons and barrels.
I am not running a airbox just filter pods on the end of carbs. I have been told me that I need to run the airbox to get the max out of this motor. can any one confirm that this might be causing the problem I have. do I need the airbox fitted?.
kick myself if this is the case as I spent hours on this motor
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Owen