Are front sprockets meant to move abit up and down the shaft

[Dtaylor12345]

I have a Honda cbr 650f all I want to know is iff it's normal to have movement up and down the shaft on the front sprocket.

I can't find any reliable information any where, some people say it should be fixed tight and others belive it should move to allow perfect allniment of the chain on the sprocket.

I have bought a aftermarket front sprocket so I thought it was the wrong size anyway after waisting money on a Honda part it's still the same. All of my spacers are located. Please help but only exact facts please .
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DT

[Ste]

How good are you at welding?

[redeem ouzzer]

Yes it should float. Yes you shouldn’t use anything other than the OEM sprocket on such a setup. Some pattern sprockets are harder than the splines on the shaft, so they’ll start to wear the output shaft out.
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Be a REAL MAN!

[Pete.]

[-]

Is that normal then? What stops the bolt coming loose?
Mine have always had a tab washer which you hammer over to stop the retaining nut moving.

I’m not familiar with your bike, so that could be normal. Just looks a bit odd to me.
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Jaguar S Type 3.0 V6 Sport R, VW Transporter T5 GP LWB Shuttle 140ps DSG.

[Ed Case]

I've had several Hondas and without exception the front sprockets were always 'sloppy' on the final drive splines, didn't seem to create excessive wear on them.

[redeem ouzzer]

[Dtaylor12345]

The only reason why I'm concerned is becauce I can experience the same sound as what the sprocket movement makes sometimes when riding .

It's not very load but I have noticed it sometimes when let's say selecting 3rd gear. Once the gear is selected and when I relise the clutch I can hear it .

I can also replicate the noise iff I just release the clutch in 1st gear semi fast and it's deffiantly noticeable. But it will also do the sound just realising it like normal but not qwite as load

This is the only thing I believe the noise is from. Even Honda don't know for sure. I would love to be able see official information about it as Honda don't seem to know for sure iff it's normal either
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DT

[Dtaylor12345]

[Dtaylor12345]

Also the output shaft dosent look worn and dosent seem to move .the bolt and spacer locks ontop of the shaft but the sprocket just moves
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DT

[Pete.]

[Dtaylor12345]

Grease will always help because 1. It lubricates and 2. It prevents rusting. Rust (Iron oxide) is very abrasive. If you look at a badly neglected rusty chain invariably the sprocket will also be rusted and if that gets into the spline gap it makes a perfect grinding paste.[/quote]



My shaft does look qwite stained
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DT

[Riejufixing]

[Sister Sledge]

Interesting about the hardness of front sprockets - I hadn't considered that when buying parts. Genuine it is from now on then.
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CCM 404 DS

[Pete.]

[Dtaylor12345]

So iff the play is normal and I've got a original Honda sprocket on isn't it going ware ?. There is also very very slight rotational movement but it's got to be normal there is nothing I can do about it lol
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DT

[Dtaylor12345]

I'm accturaly tempted to sell the bike becauce of this it's annoying me I belive it's a very weak . Does the play weaken the output shaft over time or what ? I'm at 10000 miles and it's already got a little bit of rotational movement (less than a mill) but I just don't want it going worse . I'm really getting put off by Honda.
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DT

[trevor saxe-coburg-gotha]

Probably someone has said this above but have you sought a second opinion - i.e. let A N Other experienced rider have a go? I don't want to be dismissive but at this point I'd be surprised if this is anything out of the ordinary. Having said that, I bought a bike last year and absolutely knew that the headstock bearings were notchy - I had three other people try it including a bike mechanic of 35 years, a BAE engineer who covers 20K a year and undertakes all his own maintenance and thirdly, a bike MOT man who also rides and has owned bikes all his life. All three of them, independently, said no problem here. But it was pissing me off and the notches at 10 and 2 o'clock seemed painfully obvious to me. I went to a fourth guy and said I'm saying fuck all about this bike just get on it and ride - preferably quite slowly. He came back and I said well, so, tell me. He said hmmm...headstock? I said thank fuck. Get 'em done. He did, and the improvement was obvious - at least to me. The other three either felt nothing at all or said tyres. To be fair, the rubber was 10 years old - but I knew in myself it wasn't that. And sure enough, when I did put new tyres on it was still there. Hence me going to a fourth person.

So my solution isn't necessarily the best - but it may help. I'm definitely not a bike hypochondriac though. That's an actual thing, btw - I'm mates with a few bike pro bike mechanics and we see various people come in complaining of weird "problems" that yes okay I suppose strictly speaking these issues can be detected, but they're so piddling and pathetic that they amount to nothing. And are certainly not worth throwing good time and money at. I personally buy twenty year old bikes - all with some slight thing or other (e.g. a very, very minor gasket weep on one), and I take no notice, notch up tens of thousands of miles, and enjoy 'em.
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"Life is a sexually transmitted disease and the mortality rate is one hundred percent."

Mobylette Type 50 ---> Raleigh Grifter ---> Neval Minsk 125

[Dtaylor12345]

But my bike is only a year old with 10k miles iff the sprocket can be wiggly at only 10k miles emagine what's it's going be like this time next year. I can just emagine it going qwite bad just as my warrenty runs out.

And yeah it would he best if I could just accept it and move on I just don't want any headache in the future. and I honesttly believe this will cause a nightmare in a few years time .

I bought this bike to last me years and I just don't think it's going to.
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DT

[rpsmith79]

[Dtaylor12345]

They Think it's normal. But they don't know the facts ! They just seem to guess.
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DT

[trevor saxe-coburg-gotha]

So take it to an independent - or better still, several - and get their opinion. I'm not going to dismiss your concerns because if my own experience is anything to go by, sometimes it takes the owner of a bike to know when something is wrong, because they're the only person who knows the bike.

How many bikes have you owned? I was convinced the first bike I owned (bought with less than 100 miles on it - so to all intents and purposes a new bike) was ailing badly, and perhaps even trying to kill me. Why? Because neutral seemed almost impossible to select. Of course, a thousand miles later and it was a relatively slick operator and neutral could be found without any trouble 95% of the time. The gear box simply needed running in. NB I'm not saying your bike needs running in - just that some problems aren't necessarily problematic as such. They're simply how things are and kind of should be.
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"Life is a sexually transmitted disease and the mortality rate is one hundred percent."

Mobylette Type 50 ---> Raleigh Grifter ---> Neval Minsk 125

[Dtaylor12345]

I've tried speaking to loads of different people some say it needs shimming out but I don't like the idea of that beacuce it has everything in place. Iff i was going to do that I would need know it's fine .


Then others say it's normal but even iff it was normal I would class as a poor design I can't see the shaft being twice as strong as the sprocket. I belive it's deffo getting ware more and more. I think I'm going haft sell the bike I can't be arsed with it anymore.
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DT

[Dtaylor12345]

I've tried speaking to loads of different people some say it needs shimming out but I don't like the idea of that beacuce it has everything in place. Iff i was going to do that I would need know it's fine .


Then others say it's normal but even iff it was normal I would class as a poor design I can't see the shaft being twice as strong as the sprocket. I belive it's deffo getting ware more and more. I think I'm going haft sell the bike I can't be arsed with it anymore.
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DT

[Dtaylor12345]

I do hoenstly belive it's a design to make the sprockets and chain last longer so the front sprocket can move abit to reline with the rear sprocket so it's always aligned properly as u can never get the chain and sprocket 100% perfect.

But at the end of the day i think that compromises the long term relaibitly of the shaft.

I mean the play in the shaft could still be fine for the lifetime of the engine but my guess is it's just going make it feel more sloppy the more miles it goes on .

I believe the fact it's being able to move up and down the shaft that's going also make the rotatinal movent of the sprocket worse. I mean I was just going ACCEPT the movement of the shaft but I've now noticed there is a slight rotational movent so i can see it going worse .
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DT