It'll be the solenoid on the starter clicking, not the motor itself.. Could be down to not enough amps (ie flat battery) or jus a dodgey solenoid (maybe its old). Not too sure bout the inlet fanimold t off, I know on my kjet its still attached to the rubber breather pipe from block, its just the airbox end that's unattached, and that goes into my catch tank (lucozade bottle). Just to confirm spark, pull a plug out, stick it on the rocker or inlet so its earthed, then turn over briefly and look for spark.. take your battery off and charge it over night, then have another crack 2mrw and report what's happening..