Vintage dirtbike problems

[Keyser Soze]

I was ridin around on my 1980 yamaha TT250, I posted a pic of a week or so back ,when all of the sudden the clutch quit working. You can still shift through all gears but you cant use the clutch. Its like its none existint. Im not much of a mechanic but the thing the clutch cable hooks up to on the case should have some resistance, and it should pull the clutch cable back. Now when you pull the clutch cable it just stays in the foward position, it does not pull back. Ive never split cases on anything so im not sure how it works. I know there is a little spring on that metal peice but I didnt have one on my old shee and there was still plenty enough force to pull the cable back..now there is none. Kinda off topic but im clueless. Id like to get it fixed ASAP.

[Keyser Soze]

bump

[boneyardbanshee.]

well I havent worked on too many dirtbikes, but a motor is a motor.

 

My opinions would be:

Both have happened to me in wich that happend

 

1. Best case scenario

 

The nut that holds the cluth basket on has come loose.

There should be some kind of lock waasher behind it that has failed.

Easy fix, get a new lock washer.

 

 

2. The not so good scenario

 

The clutch pushrod has welded its self to something in there.

Depending on what it is will determine how muh its gonna cost ya to fix it.

 

If it just welded on the clutch side you will need a new ball and maybe a new rod. You should be able to file it back to normal. In this case you should be able to get away without splitting the case.

 

If it welded on the peice that is connected to the cable you wont be able to remove it from the case and you will have to split it.

 

Now just because it doesnt come out doesnt mean it welded there. It could have just worn a flat spot in it. Either way you will need to split the case and buy a new clutch arm. That was the most expensive part of the repair for me. That and the pancake bearing that prevents it from happening.

[colby72olds]

My CR250 did this too, luckily I was able to change the oil and it fixed it. Check your oil, mine was all milky and shit.

[Keyser Soze]

Oil looks good. I thought about that myself. I think the connecting disconnected from the basket. It sat in a barn for 4 years and I know when i first started it the clutch would work a little but the cable was nearly froze. I dont think it ever got hot enough to weld the connecting rod to anything...Oh well I can part this bad boy out for a fair amount if anything.