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Old 04-13-2014, 06:17 PM   #1
Midlife_Madness OP
Not too old, not too late
 
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Joined: Sep 2009
Location: Spokane, WA
Oddometer: 27
XL250R timing chain question

I'm pretty sure I know the answer, but I appreciate the experts out there chiming in to confirm what I'm thinking.

I had pulled the bike out of storage a few weeks ago, fired it up and made sure it was running okay. It seemed to be okay. I'm preparing to sell it so I was cleaning it up and had also replaced the handlebars on it, so I wanted to make sure it was running okay after that. Well, after a lot of kicking it finally started but with an awfully loud clicking from the engine and after about 30 seconds it died. I was a bit concerned so I just tried to turn the motor over gently with the kick starter and it wouldn't move. Uh-oh - this is bad.

Now look at the picture below. This is a 1982 Honda XL250R engine with a close up of the bottom of the timing chain. As I understand it, the timing chain tensioner should be keeping the chain relatively tight, or at least such that it shouldn't look like it does in the picture. I just moved the left side with my finger and it feels very loose. My initial thought is the tensioner is broken. I'm obviously going to have to pull the engine so I can pop the top off and see what it looks like at the top of the engine.

My question: What other possibilities can you guys think of here? Unless it's really bad I need to be able to do the work myself as I can't afford to take it to a shop. But there's a certain point where it might be beyond my abilities.



Thanks for the help!
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Old 04-14-2014, 01:39 AM   #2
StevenD
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Joined: Aug 2005
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As you say, you know the answer already. Feel silly you kept the motor running now?.. probably bent a valve there.

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Old 04-14-2014, 11:39 AM   #3
Midlife_Madness OP
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Yeah, I do and yeah, that's my fear too.
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