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no threads for Drive Sprocket Retaining Nut

ianth

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so i was cleaning my chain and saw that the Lock Washer and nut were gone there are no threads left on the main drive shaft for the nut to screw on to to keep the washer and sprocket on. Can i re thread that shaft or do i have to weld that nut on now.
 
Tear down and replace the shaft would be my only option. :eek: That's not good at all! Check with the dealer too as there was a recall for some model years for the sprocket retaining lock washer. You *might* be able to yell loud enough to get it civered under that bulletin and all done for free.

Either way, the bike is toast until it is fixed.... too dangerous to ride. :(
 
Don't even think about riding that thing that way!!!!:eek:

Can't imagine how that's going to get fixed properly without a teardown.

Good luck and the Big Universe must be looking out for you. :D
I'm going to go check mine in a few minutes.
 
Welding is a known fix on the XTZ750 - they suffered from this big time, and many have had the sprocket welded on - the famous bell-end weld. But, as said, it's got to be worth talking to your dealer about a warranty claim cos if you have to replace the output shaft it won't be cheap.
 
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thanks, looks like a tear down is what im going to have to do i think welding it on is too dangers if that mail seal around that shaft gets too hot oil is going to leak out. my bike is an 06 one year after the recall, talk to the dealer $16-1800 to replace the shaft would take 16 hours and would have to replace all them gaskets. would like to have some do it that i could help, would like to see the guts of that bike. dealer told me to call Yamaha, talk to them tonight ask for free parts since the dealer had told me he had never seen this before. they were going to talk to the dealer when the open tomorrow i will be praying tonight
 
Mine went in Mexico three days ago with 1000 miles to get home. No sign of any threads, just a smooth shaft. A couple of spot welds and a pressed on steel washer (found on the ground) got me home just yesterday.

692981356_gjpLC-L.jpg
 
I have a 2005 FZ6 and just had this replaced last summer under warranty when I took the bike in to have the Throttle Positions Sensor replaced (from the sounds of your message, I'm glad I did). I would contact your Yamaha dealer to see if your bike is covered as well.
 
Mine went in Mexico three days ago with 1000 miles to get home. No sign of any threads, just a smooth shaft. A couple of spot welds and a pressed on steel washer (found on the ground) got me home just yesterday.

692981356_gjpLC-L.jpg

BucketBrush2.jpg
:D Glad you found a way home!
 
I have a 2005 FZ6 and just had this replaced last summer under warranty when I took the bike in to have the Throttle Positions Sensor replaced (from the sounds of your message, I'm glad I did). I would contact your Yamaha dealer to see if your bike is covered as well.
Worth a shot, my bike is registered as a 2006 model. Where in fact it was actually a late 2005 bike. I contacted the dealer and had the TPS and sprocket sorted.
good luck mate. Thats one expensive thing to rectify.

Question to all, If this bike was brought from a dealer under sale of goods act. Would the owner have any legal rights?

Nelly
 
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Worth a shot, my bike is registered as a 2006 model. Where in fact it was actually a late 2005 bike. I contacted the dealer and had the TPS and sprocket sorted.

Is your bike in the affected bike list?
Is this list right or should it be updated?

techfz6.jpg
 
Mine went in Mexico three days ago with 1000 miles to get home. No sign of any threads, just a smooth shaft. A couple of spot welds and a pressed on steel washer (found on the ground) got me home just yesterday.

692981356_gjpLC-L.jpg

Man that truly sucks. You can bet my ass would be welding that sprocket back on for sure. I'm not going to pay 1800-2000 repair bill on a 6,000 bike. That weld will hold forever, just have to worry about sprocket change. I'd do the same then too.
 
so i was cleaning my chain and saw that the Lock Washer and nut were gone there are no threads left on the main drive shaft for the nut to screw on to to keep the washer and sprocket on. Can i re thread that shaft or do i have to weld that nut on now.
Ouch.... $$$$$$ , replacement is the best option... and yes welding will get you home , the only problem with welding it ...is you have no preload, so the sprocket will chatter away and in time wipe out both sets of splines....hell, your shafts screwed anyway... wish you luck with the yamaha appeal , remember the squeeky wheel gets the grease..Daryl
 
[

Is your bike in the affected bike list?
Is this list right or should it be updated?

techfz6.jpg
I will check later today. 3.00am at the moment lol. What do I cross reference that number with? When I took my bike down. The chap went outside and got the info, I stayed in the shop.↲↲Nelly
 
Welding is a known fix on the XTZ750 - they suffered from this big time, and many have had the sprocket welded on - the famous bell-end weld. But, as said, it's got to be worth talking to your dealer about a warranty claim cos if you have to replace the output shaft it won't be cheap.

You mean weld the sprocket to the counter shaft? That will certainly work, but is it reversible? What will you do when you need to replace the chain and sprockets once they wear out?
 
Agreed. I don't mind welding it especially considering how many of these have fallen off.

Lost your front sprocket and washer??? - Fazer hints and tips - Hints, tips, advice - Fazer Owners Club - Unofficial - Message Board - Yuku

It saw some pretty severe offroad abuse in the days before it went. There was a half day of these :)

695485109_3mr3s-L.jpg

Man that truly sucks. You can bet my ass would be welding that sprocket back on for sure. I'm not going to pay 1800-2000 repair bill on a 6,000 bike. That weld will hold forever, just have to worry about sprocket change. I'd do the same then too.
 
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You grind the solder off the washer and shaft. In my case it was kept away from the splines and should be simple to replace and reweld. :rolleyes:
:confused:
You mean weld the sprocket to the counter shaft? That will certainly work, but is it reversible? What will you do when you need to replace the chain and sprockets once they wear out?
 
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