Make sure the decompressor is working correctly (on the end of the camshaft at the sprocket) , make sure its springing back , it should return easily , there is a pin also on the shaft of the cam at the lobe for the exhaust valve , make sure it moves in/out with pressure , this is what releases the exhaust valve a little and allows the compression to drop when kicking , as soon as the engine fires the decompressor kicks in from centrifugal force and allows the valves to close fully bringing back the compression ..... its most likely the cause of the heavy foot needed to kick it if its sticking ...Alright, so it's been a while...waiting on different parts/gaskets and what not but the valve adjustment was an easy fix. I'm an idiot and switched the exhaust shims with the intake shims even though I thought I had it all laid out perfectly. Switched them over...boom perfect clearances. Only issue now is that the crank is extremely hard to turn over by hand and almost impossible to kick start. Like I feel like I'm going to bottom out the suspension with all the force I'm putting into it and have to put my MX boot on to even think about giving it a kick. Is this just a timing issue or did I screw something else up? Once it's started it runs fine, haven't taken it on a lap around the block or anything but seems to idle and rev as it should.
Users browsing this forum: No registered users and 1 guest
Copyright 2016-2017 © CRF's Only Forums. All Rights Reserved.