Yamaha CBR125 - Gears

[KaGantua]

Hi riding a CBR at the mo as I have not passed my test one thing ive noticed is that often you will go up more than one gear at a time - is this a known fault or just me being heavy footed?

j

[Az]

You push up on the gear shifter once and it goes up 2 gears?

If that's what you're saying, that's not normal mate and defo' a mechanical problem not you being heavy footed.

Edit: You'll probably get more advice/explanations if this was in the workshop area of the forum not new biker

Just noticed 'Yamaha CBR125' ...this has gotta be a troll haha

[trevor saxe-coburg-gotha]

I had this happen on my Honda YBR125. Sucks man.
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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

[dydey90]

Only clicked on this because of the title. Disappointed at the lack of piss taking.
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This post is probably not serious and shouldn't be taken literally.
Past: CBR125,ER6f NINJA 650, ZZR600 Current: VFR750

[Doovy]

Sounds like it's a cut and shut, could be the reason
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Yamaha RXS 100 > Honda CD 250 > Honda Hornet 600 > Honda CBR 600RR > Yamaha RXS 100 > Kawasaki ZX6R J2 > Yamaha FZ1

[KaGantua]

YBR125 rather

Thanks all

[James83]

How do you know its going up 2 gears at once? If its just because it seems gutless, remember its a 125

On a serious note, if you are talking about missing neutral between first and second - I always has that issue on my YBR and it seemed to be fairly common.

[_Iain_]

[James83]

[KaGantua]

[Dave70]

Do you know anyone that rides bikes? If so, let them have a ride around the block and see if they find the same problem.

Or just take it to a mechanic and get them to check it over. Sorry I can't be of more help but, it sounds like you definitely have a problem with your gears that'll need fixing anyway.

[Teflon-Mike]

The sequential shift on a conventional motorcycle gearbox; works on a 'rachet'. When you move the shift lever up or down, it twists a pawl around a cam, as the pawl 'latches' on a tooth, it drags the cam round to the next gear selection. The travel on the pawl is 'just' enough to move the selector drum one gear possition, apart from between first and second, (conventionally) where there are 'half' latches for Neutral.

Make sense?

Well, if not, basically, its almost impossible to 'double shift' on a motorbike gearbox, due to moving the lever to far or too hard.

Non-shifts? Not moving lever far enough so it doesn't 'latch' the next ratio, and drops back into the one you were in; or finding 'False' Neutrals, moving the latch far enough to dissengage last ratio, but not far enough to engage the next... THESE are common gear-change faults; either from Learners not shifting 'positively' or a sloppy gearbox, much over worked by over eager newbies.

Sounds like YOUR problem IF you are double shifting, is just that... you are moving the shift lever twice.

At a guess, probably more often on up-shifts....

And if SO... my bet would be that what you are doing, is predicting an up-change, putting your toe under the shift-lever 'ready' to move it up... but in wiggling toe under, you are in fact moving it up enough to make one change, before you actually 'do' the change you planned.

Cure?

Try taking the shift lever off the change shaft, moving it round a few notches on the splines so that you can more easily get your toe under it WITHOUT nudging the mechanism... tighten it back up.... and go see if problem persists!

HINT:-

Often skimmed over in CBT or forgotten; BUT. In a car; you climb oin the drivers seat, and before setting off, you can move teh chair forwards or back to put the foot-pedals where most comfy and easy to work; you can adjust the tilt of the seat back, and often the tilt and hight of the steering wheel, so that you can hold it most comfortably; then obviousely the mirrors...

Bikes? DONT like a car SEEM to have anything that the rider can adjust... you just jump on and ride it....

NOOOOOoooooo not so. There's actually LOADS of asjustment on a motorbike, its just not so 'obviouse' or easily effected, often needing a spanner or allen key!

Handlebars can be twisted in teh clamps to move them forwards and back, and slightly asjust thier height.

Clutch & Brake Levers on the handlebars can me rotated around the bar so that they fall comfortably to hand.

Brake and gear pedals; can be adjusted for height on their shafts so that they are more easily worked with where your feet fall.

And you can make BIG differences to how everything falls into place, shifting your bum further or closer to the tank on the seat.

And a little time, playing, finding the most comfy position and setting the controls to it, CAN make a WORLD of difference and turn a 'horrible' bike into a really nice one!

Go give it a try.
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My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[Boris the spider]

Splendid advice.

I had to do exactly that with my YBR gear change.
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Yes I'm a pig....And yes... The working public do pay my wages. Tho I contribute to your benefits you lazy c##t. You do not pay my wages. So go fcuk yourself.

[MC]

[Teflon-Mike]

[MC]

I changed my oil back in August, I think it's just the electrics are a bit $hit. Very occasionally the indicator light doesn't come on either, then about 30 secs later it decides to work
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Yamaha MT-03 '08 (crashed)
Honda XR-125L '04

[davebike]