Slight clicking from front spocket + other Qs - YBR

[JoeDaStudd]

Hi,

After getting the tyres changed on my ybr there has been a slight click when pushing it in neutral or manually spinning the back wheel.
Originally I thought it was just the feelers from the new tyre catching on something, but upon inspection I noticed it was coming from the front sprocket.

I've cleaned the chained and relubed the chain, checked for tight spots, damage, etc and adjusted the chain (was just within tolerance ~30mm out of the 20mm to 30mm, now ~22mm).
No luck.

Any ideas?


Second question while trying to troubleshoot the clicking noise I did two very stupid things.
First I managed to forget I put the disc lock on the front and pushed it a bit, the lock knocked into the brake.
With shame (the disc lock had the reminder string, but I didn't put it on the handlebar...) after checking for damage I put my bike away only drop (wasn't fast, the bike has engine protectors and it was onto grass) it while wheeling it out the next time I came to use it.
After the usual checks and nothing visible I took it for a short ride and it felt a little off (the front felt like it was forcing down), but wasn't sure if that's because I was carting around my 2m Almax III chain and lock (heavy bugger).
The issue was much less noticeable after a mile or so

At which point I got a little paranoid and started checking everything.
The front wheel will only spin about 2 revolutions when on the centre stand, but I genuinely can't remember if it did this before.

How freely should the front wheel spin?
Anything to check or simple I'm missing before I continue non my paranoid state and remove the front brake and check it all over?

[jaffa90]

Are you checking the chain slack with somebody sat on the bike both feet up and side stand down on a block of wood?
The wheel sounds free enough but check the disc after a run for HEAT.

[Evil Hans]

[whitedevil]

check your wheel alignment. youtube string method
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GPZ500 sold ~ CBR600FS-2 sold ~ ZX6R sold ~ Street Triple R

[JoeDaStudd]

[Evil Hans]

[JoeDaStudd]

Are you being serious as the Haynes manual, owners/service manual and every guide/video I've seen mention nothing about adjusting the chain with extra weight on the bike .

I'll go over the chain one roller at a time and check the wheel alignment, hopefully this rain stops and I can get it sorted tonight.

[Snod Blatter]

Yes he's serious. When you sit on it the suspension will sag and the distance between sprockets will lengthen - you will probably find that the chain is drum tight when you are sat on it. This is really Not Good™ as it will not only promote quick wear of the chain and sprockets but also puts a lot of load on the bearing that holds the output shaft in place (the one with the front sprocket on it) and if you knacker that you're in serious trouble.

I would like about 3cm of uppy downy when sat on the bike and poking the chain with a spanner/stick/whatever. A slightly loose chain is much happier than a tight one. Get a helper to poke the chain if you are a moron/dyspraxic and can't manage it yourself.

Also two spins of the front wheel is fine. It's not super, but it's okay.
____________________
1994 CB250, 1984 CBX250RS-E, 1989 K100RS, 1995 TRX850, 2016 Z250SL

[jaffa90]

We are serious.

[herulach]

Checking slack on centre stand is fine, provided that the measurements you're using are for that. If its out of the manual (3cm on the centre stand) its fine. If its clicking from the front sprovket, probably wants clutch adjusting - does it go away when you pull the clutch in?
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YBR 125>FZS600

[Commuter_Tim]

[jaffa90]

Haynes state that for safety reasons. Every bike I've had and I've had plenty in 45 years I've always simulated riding conditions (not bumps) when checking chain slack. Then you can put it back on the centre stand if fitted and see/feel the difference and note it.
Watch Moto GP and see them chains wagging up and down at 150mph.

[Commuter_Tim]

[jaffa90]

I don`t need a manual to set any chain tension, it`s common sense that you need chain slack when the swing arm is on max movement.
Trail type bikes need more slack so your talking 50mm min without a rider sat on it. It`s not rocket science when the front of the chain pivots on the gearbox sprocket and the back of the chain pivots on the swing arm.

[Ste]

https://www.youtube.com/watch?v=u6ZsWwQ072E

[redeem ouzzer]

Most of the above is bollocks. The chain slack figures in the factory manuals are virtually always given without load. You wouldnt want 30mm of slack under load, the chain would flap around like a shithouse door.
____________________
Be a REAL MAN!

[JoeDaStudd]

Forgot to update this thread.

So I checked over all the chain link by link and nothing.
The alignment was pretty off which reduced the clicking a lot.
Still making the noise, I'll check the clutch play.

[jaffa90]

The alignment was pretty off which reduced the clicking a lot.
How did you find that out?
Are the sprockets running in the middle of the chain?

[Hong Kong Phooey]

What's the condition of the front sprocket? If it's hooked you should change.

Because it's hidden it tends to go unnoticed.
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'81 CG125, '97 FZS600 : '99 CBR600F4, '09 KTM RC8