My simple Front Sprocket Fix

[packie]

I check it from time to time and in the six year or so I've had the bike the worst it's been it about one or two turns loose.
Still pretty shite though. You'd have though Yam would produce an undersized nut to match the bad shafts

You'd be damn sure if it was a new bike there would have been a recall and the whole shaft replaced. They relented and gave "Unfazed" the whole set of parts to sort out himself.

What I would be worried about in your case is this....if it's constantly jumping the threads, eventually one day all the rubbing of the threads on the nut from skipping over the harder threads on the shaft might wear the threads on the nut so much that there will be no more bite to cling onto the shaft and you might have a total catastrophic failure before you get the chance for your next check-up.

I would liken your nut working a little loose constantly as to being like a warning sign to you...you know...like when you get a little pain every now and again in your chest and you keep saying to yourself "sure a heart attack couldn't possibly happen to me...i'll be grand once I constantly keep an eye on things". Well life don't work that way. Disaster could strike at an instant without you even knowing.

I had those type of small warning signs but took heed and got checked out and discovered I had a mild heart attack and I never even knew it!! They didn't even know it in the hospital after two ECGs as it never showed up. It was that mild a heart attack. It only showed up in my bloods and they discovered two badly blocked arteries after an angiogram. That was 6 years ago and I don't think I would be conversing to you now if I didn't take heed to the warning signs that my body was telling me and let those arteries block up further. Your bike is telling you the same thing....that all is not well down there. Your choice, your life.

See "Unfazed" download for his fix and the damage it caused his nut and shaft over time. I was talking to him personally and his whole sprocket dropped off, but he was haunted that he was at a near standstill.