| I dont think the belt would slacken becasue of the broken rocker, there are seven others in there to keep everything nice and tight. Plus the belt is tensioned by a pully arangement so unless that had moved there is no way the belt can come loose becasue of things going on inside the head. I've never done a four valve belt change but that amount of slack you have does look excessive.
Like others have said, if the engine will turn over the next thing you need to do is check that the timing marks line up then its head off time i think.
Oh, i just remembered, i have heard of a couple of cases of the main crankshaft belt pully shearing off. Not sure which bikes this happened on though. |