Crash Gearbox...okaaay?

[ReigN]

Hey all,

So learnt another term surrounding bikes etc anyways, Starting from last night, I've had problems trying to find neutral and chopping down gears so has been a pita which kinda cut my ride short. This never happened in the 2months that I've been riding so quite strange it's playing up. Took it into RB this morning and was told it's a "crash gearbox" and you have to rock it etc to get it into gear (not sure I worded that properly). Am I just being a bitch and should just get used to getting it into gear with "blippin the gas" or get it looked at properly? I don't mind so long as it doesn't screw my clutch or box (no, I'm not mechanically minded hence the shite explanation)

Any help would be appreciated

Churrrr

ReigN

[motorbyclist]

bike model, year and mileage?

when was your last oil change? - some bike gearboxes work notably better on fresh oil

Starting from last night, I've had problems trying to find neutral and chopping down gears so has been a pita which kinda cut my ride short. T

you should blip the throttle to match engine and gearbox speed - this saves your clutch, gearbox, chain and rear tyre from the nasty jolt/shock you get otherwise - OR slip the clutch, at the expense of a clutch. If you're ever ridden an FXR150 you'd also know this saves your balls from a rather nasty impact against the tank.

it's just like letting of the gas when you shift up.



but if you are stationary and she wont go into the desired gear, yes you do have to rock her back and forwards a bit; this is because you stopped with some dogs (gear teeth coupling synchro and gear) aligned just right to hit each other rather than mesh, so moving with realign them so they might slot together

[YellowDog]

What I think you are referring to is that you sometimes can't find gear or neutral without first dissengaging the clutch sightly to move it all around a bit?

If this is the case, most bikes are like this and it is something you will quickly get used to. A quick slip on the clutch will help you find neutral or the first gear.

If you are refering to changing gear whilst riding, as has already been said, it is always a good idea to get the engine revs up close to the wheel speed before changing gear.

[CookMySock]

Have you just changed the oil? If someone has put the wrong oil in it - this will stiffen the gearbox up and make it drag, making it behave completely differently, and also hard to find neutral.

Failing that, I'd say something has come adrift, and will likely spit the dummy before long.

Steve

[ReigN]

bike model, year and mileage?

when was your last oil change? - some bike gearboxes work notably better on fresh oil

you should blip the throttle to match engine and gearbox speed - this saves your clutch, gearbox, chain and rear tyre from the nasty jolt/shock you get otherwise - OR slip the clutch, at the expense of a clutch. If you're ever ridden an FXR150 you'd also know this saves your balls from a rather nasty impact against the tank.

it's just like letting of the gas when you shift up.

but if you are stationary and she wont go into the desired gear, yes you do have to rock her back and forwards a bit; this is because you stopped with some dogs (gear teeth coupling synchro and gear) aligned just right to hit each other rather than mesh, so moving with realign them so they might slot together

ZXR250C, 1991, 22k

Last oil change was 2mths ago I guess upon recieving the bike.

Ok so the blipping thing I've never been good at, so I guess I've been using the engine braking aspect to slow down just like when I'm driving but will try giving it a go on my way home.

Cheers again for the info though dude.

[ReigN]

What I think you are referring to is that you sometimes can't find gear or neutral without first dissengaging the clutch sightly to move it all around a bit?

If this is the case, most bikes are like this and it is something you will quickly get used to. A quick slip on the clutch will help you find neutral or the first gear.

If you are refering to changing gear whilst riding, as has already been said, it is always a good idea to get the engine revs up close to the wheel speed before changing gear.

Heya Yellow,

Ok cool, so I'm going to try playing around with the clutch abit before coming to a halt, just sux how it feels all mushy when trying to drop down in gears, what's more sucky is how to get off the line it starts in either 2nd or 3rd so I have to ride the clutch slightly in order to roll and then drop down to get momentum as per normal...or maybe my riding style is weird

Cheers again YD

[ReigN]

Have you just changed the oil? If someone has put the wrong oil in it - this will stiffen the gearbox up and make it drag, making it behave completely differently, and also hard to find neutral.

Failing that, I'd say something has come adrift, and will likely spit the dummy before long.

Steve

Hey DB, I've just topped up the oil around 2-3 weeks ago as it was about halfway according to the reader. This shouldn't be the incorrect oil as it was the one recommended by RB and the same one they use on all their bikes before selling.

Yeah well hoping that doesn't happen hence the reason why I'd like to get it sorted before the 3mth warranty is up, sooner rather than later though tbh

Cheers for the input DB.

[vindy500]

you only fill it halfway up the glass...

[ReigN]

you only fill it halfway up the glass...

ahhh ffs you serious?! I checked this beforehand and this was filled all the way up the glass (I'm pretty sure of it) so therefore I always make it a habit to check water/coolant levels and ol levels too. GG me!!!

Cheers though Vindy.

[motorbyclist]

ZXR250C, 1991, 22k

gearbox/clutch could've been abused/neglected/damaged by the last learner owner, so maybe get someone independent and experienced to have a try. squiggles/myself would be happy to look

either way, try get the cam chain and tensioner looked at before warranty ends - those things chew through cam chains every 20-30 thousand k and the poorly designed tensioner can go in as few as 15

[ReigN]

gearbox/clutch could've been abused/neglected/damaged by the last learner owner, so maybe get someone independent and experienced to have a try. squiggles/myself would be happy to look

either way, try get the cam chain and tensioner looked at before warranty ends - those things chew through cam chains every 20-30 thousand k and the poorly designed tensioner can go in as few as 15

Maybe, hopefully i havent poked it for whatever so reason, I think I'm the first NZ owner considering I bought if from RB 2mths ago. Bro you're more than happy to come have a look, I'll pay you too, just spent the last 15mins trying to get this whole "rocking" thing right but it's not feeling my buzz, dam left shin is aching lol (no I'm not jumping up and down on the gear pedal)

This is starting to piss me off though, I've only done about 1000 clicks on it these past 2mths and surely can't have fucked it already? Making me think my decision to get the zxr250c and go for the newer hyosung? I know it's an older bike but still

Will have to book and get the cam chain and tensioner so back to cage/bus it is, FFS!!! FML!!!

Cheers again MB

[ReigN]

Weirder and weirder, when I turn it off and leave it for abit it seems to engage again? Is there anything apart from the aforementioned that can ultimately affect it as well?

I just find it weird that the gears turn to mush ie.trying to drop down and goes ok untill after 3rd where 2nd/1st is nowhere to be found, just alot of me trying to kick down and up at the lights to no avail, this leaves me lurching off in 2nd/3rd, surely this isn't common?

I'm gonna pop around to the West End carpark to see wether it's me or my ride that's the cause of the prob

[Madmax]

Hey all,

So learnt another term surrounding bikes etc anyways, Starting from last night, I've had problems trying to find neutral and chopping down gears so has been a pita which kinda cut my ride short. This never happened in the 2months that I've been riding so quite strange it's playing up. Took it into RB this morning and was told it's a "crash gearbox" and you have to rock it etc to get it into gear (not sure I worded that properly). Am I just being a bitch and should just get used to getting it into gear with "blippin the gas" or get it looked at properly? I don't mind so long as it doesn't screw my clutch or box (no, I'm not mechanically minded hence the shite explanation)

Any help would be appreciated

Churrrr

ReigN

Its a Constant Mesh Gearbox

[quickbuck]

Its a Constant Mesh Gearbox

Yup, and they ALL do that... if you look for a problem....

The trick is to get really dainty on your foot when going from first to second whole stationary..... Mind, conversely you have to be very positive while on the move.
A real pain when it jumps out.

As for oil, YES, ONLY half way up the glass....
The Race Bike (ZXR400) suffered a bit of a power loss, and clutch slip when overfilled... Ahem.

[kave]

It doesn't sound like you have any problem. You just need to realise that bikes are different to cars, and the bike gearboxes don't like changing gears while stationary. As long as you always stop in neutral (or somewhere close such as in 2nd gear) you will not have a problem. If you pull up to the lights in fourth gear and then try to chop it down through the gears the bike will not like it, and you will have to rock the bike to try and get it to change. It is just a whole shitload easier to be in the right gear when you stop.