Sir Fallsalot Posted May 17, 2021 Share Posted May 17, 2021 Started to strip the 650 to fit a new cam chain tonight as all the parts i needed turned up today Had to strip the carb off to get the rocker cover off which was a right pain on this bike this is how it looks at the moment when i took the clutch cover off i noticed a bit of black plasticky stuff. Couldn't work out what it was at first or where it come from but after taking the cam chain out i could see wear on the crank case from the chain and then the horror dawned on me bloody cam chain guide is worn out and that bit of plastic was the side of it. To change it the head has to come off so new head gasket as well as the two chain guides This is the old chain and and the bit of cam chain guide i found floating about. The chain is totally fucked i'm lucky it hasn't snapped So now i have to sit and wait for more parts before i can rebuild it 6 1 Link to comment Share on other sites More sharing options...
XTreme Posted May 17, 2021 Share Posted May 17, 2021 1 Link to comment Share on other sites More sharing options...
Grasshopper Posted May 17, 2021 Share Posted May 17, 2021 That is a bit of work, but very interesting. Hope the needed parts come quickly so you can finish up! 1 Link to comment Share on other sites More sharing options...
Catteeclan Posted May 18, 2021 Share Posted May 18, 2021 Done well to get the cam cover off without snapping bolts, normally the 2 at the inside front. Good luck with the exhaust studs. 3 Link to comment Share on other sites More sharing options...
Pedro Posted May 18, 2021 Share Posted May 18, 2021 Your engine looks like it’s seen quite some mud in it’s life Link to comment Share on other sites More sharing options...
boboneleg Posted May 18, 2021 Share Posted May 18, 2021 It looks like you caught that just in time Fred, pay attention to the cam chain tensioner while you're in there. The one on my XR650L caused me a fair bit of aggro. 2 Link to comment Share on other sites More sharing options...
Catteeclan Posted May 18, 2021 Share Posted May 18, 2021 5 hours ago, boboneleg said: It looks like you caught that just in time Fred, pay attention to the cam chain tensioner while you're in there. The one on my XR650L caused me a fair bit of aggro. Little buggers keep breaking the spring end off. 2 Link to comment Share on other sites More sharing options...
Sir Fallsalot Posted May 18, 2021 Author Share Posted May 18, 2021 13 hours ago, Catteeclan said: Done well to get the cam cover off without snapping bolts, normally the 2 at the inside front. Good luck with the exhaust studs. No problem with any of the rocker cover bolts and I snapped the exhaust studs many years ago had to drill one out but i replaced them all with stainless steel Alan head bolts and they undone like i put them in yesterday. One of the headers is seized into the Arrow end can but that's not stopping me from doing the work. i got it soaking with penetrating oil 7 hours ago, boboneleg said: It looks like you caught that just in time Fred, pay attention to the cam chain tensioner while you're in there. The one on my XR650L caused me a fair bit of aggro. I've done a few of these tensioners before Bob the first time was a potch until i found this video on line Link to comment Share on other sites More sharing options...
Sir Fallsalot Posted May 18, 2021 Author Share Posted May 18, 2021 10 hours ago, Pedro said: Your engine looks like it’s seen quite some mud in it’s life All its time either that or water 1 Link to comment Share on other sites More sharing options...
Sir Fallsalot Posted May 18, 2021 Author Share Posted May 18, 2021 I've accepted this had to be done now so taken the cylinder off to get it honed and going to fit a new set of rings i'm too close not to do this Link to comment Share on other sites More sharing options...
boboneleg Posted May 18, 2021 Share Posted May 18, 2021 No problem Fred, it was Dave's advice that helped me out with mine . 1 Link to comment Share on other sites More sharing options...
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