Motorcycle Repair: yam big bear 350, clutch pack, centrifugal clutch

Question
i have a 350 big bear and i just fitted a new clutch and a second hand cf clutch put it altogether and as i put it in gear it jolts forward and you cant stop in gear its like the clutches are not working the problem i had is i brought it broken the original problem was the cf clutch had snapped a spring so i put the second hand compleate cf clutch in. why it was apart for the for the second time i changed the other clutch aswell still the same problem i have done the adjuster on the side of the casing but no change what else can it be please help thanks Dave

Answer
Is the idle to fast not letting the centrifugal clutch back off. Also check to make sure the spacer washers are behind the clutch pack and not missing allowing the friction to drag the outer drum or bind it up thus trying to turn the driven clutch. Also check the ball disc actuator as this thing falls out of place easily when the cover is removed. When the shifter is moved it turn the actuator disengageing the clutch. You may have to tip the quad on its left side and stack the components on the clutch while you put the cover on over the clutch assembly. This may keep the parts in place while you do this. Make sure the gas is low and shut off or you may create another problem. If you tilt the quad over find something to rest it on or against so it doesnt go over bending or breaking things. After the cover is on readjust the clutch adjuster bolt to get the proper shifting and clutch engagement.