sprocket nut retainers?

[mainline]

just wondering if the "special" washers as Yamaha calls them are really necessary or can I just use loctite and or spring washers on the sprocket nuts.

These washers are the ones that fold over the side of the nut and prevents it from loosening. I'm assuming they'd be single use only if you wanted to play it safe.

[cyclegod]

If you have ever been racing a bike and had a front spocket come loose you would be in no doubt as to why they are used. they are a necessary item for safety just like split pins on brake torque arms, axles, and footrest pins. I have a 16 stitch scar that reminds me EVERY time I ride that such things are important to fit and ensure are still present before riding/racing. A good scrutineer won't let you start without  one.

[mainline]

I was actually meaning the ones on the rear sprocket, but I suppose the same deal applies?

[cyclegod]

I was actually meaning the ones on the rear sprocket, but I suppose the same deal applies?

You bet it does, I got spat off a CB250RS coming out of a round-about after I just bought the bike. It would seem prudent to check when the previous owner sayes he had fitted a new chain and sprockets to ensure he had bothered to refit the sprocket bolt retainers 

[Doc]

Mainline it's par for the course to check rear sprocket bolts frequently. I don't use the lock tabs anymore cause I find them an utter pain (unless it's a resto) Instead I'll use brand new nuts/lock washers with Loctite or nyloc lock nuts if the clearance is available but! the golden rule is keep an eye on them no matter what you use and you won't have an issue

[vandy010]

Ditto what Doc said.
i find them a pain too. i always use one  on the front sprocket but use spring washers on the rear and keep an eye on them as general mantainace.

[asasin]

Yea lock nuts and loctite work good , use metal type spring lock nuts if you can get them as the nylon type "nylock" nuts can come loose if your rear hub gets too hot during a long race or vinduro type event. I spent all last year tightening nylocks after every race on a RM250 D until i switched to the metal ones . Hav'nt come loose since.

[mainline]

thanks gentlemen,

message recieved and understood

[mboddy]

Yea lock nuts and loctite work good , use metal type spring lock nuts if you can get them

That works well for me. Where do you get the low profile ones from?

[vandy010]

Where do you get the low profile ones from?

Try Repco,
 the one near me has a nut 'n' bolt stand that i've found pretty handy for the to odd little doo~dad. the stock does change from time to time depending on what thier Rep suppies.
worth a look.

[oldfart]

Spend the extra money and Buy high tensile bolts  ....they won't stretch 

[Colin Jay]

I have drilled the std sproket nuts on some of my 500 Yamahas and lockwire the nuts to the sprocket. Its not exactly the easiest solution, but I have never had one come loose. Of course you need to use proper stainless steel lockwire and having pair of lockwire pliers makes the job easier.

CJ

[Tim754]

Just DON"T ever get the arc welder out and weld the nuts to the studs and sprocket !!!!!!!!!!!!!  Unfortunately stupid and lazy idiots still do, as I found out only yesterday checking over a bike for someone.