Honda cbf 125 won't move forward when in gear

[Aidenwilko]

My honda cbf 125 won't move forward when in gear but will just rev but when put on the centre stand the back wheel will rotate.

[Westbeef]

Alreet, I assume the rear wheel on the stand will roll off the clutch and as you rev speed right up?

If it does as above, have you checked to see if the front brake is seized on or anything?

[Tango]

Sounds like your clutch is slipping.......is the cable adjusted correctly, with the right amount of free play?.......start with the easy stuff first.......

[JRH]

When it is on the stand and in gear and the wheel rotates when you Rev. What happens if you then operate the back brake without touching the clutch?

If it stalls as beefy says check front brake,

If it continues to rev and wheel stops then check clutch

[JRH]

[mention]Tango[/mention] just beat me to it

[Aidenwilko]

I have tightened the clutch and have checked the front brake and it still won't go forward

[Aidenwilko]

Sounds like your clutch is slipping.......is the cable adjusted correctly, with the right amount of free play?.......start with the easy stuff first.......

I have adjusted the cable and have checked to see if the front brake is seized on bit it isn't

[Tango]

Can you move the bike around by hand?......If so, your front brake isn't seized.......

[JRH]

I have tightened the clutch and have checked the front brake and it still won't go forward

 

What do you mean by tightened the clutch. There needs to be some free play in the cable between the lever and the clutch operating arm.

[Aidenwilko]

I have left free play

[fastbob]

Sounds like you haven't got a clutch at all . Your going to have to open it up but I reckon you might find the friction plates burned , missing or just plain worn out. Get a manual and whip out all the plates , friction and steel, then measure the total stack height and compare it to acceptable limits.

[Tango]

Sounds like you haven't got a clutch at all . Your going to have to open it up but I reckon you might find the friction plates burned , missing or just plain worn out. Get a manual and whip out all the plates , friction and steel, then measure the total stack height and compare it to acceptable limits.

 

Also check that the clutch basket isn't notched, stopping the plates from moving correctly......

[fastbob]

My honda cbf 125 won't move forward when in gear but will just rev but when put on the centre stand the back wheel will rotate.

 

A completely worn out clutch will still have enough friction to turn the back wheel if it's off the ground and there is no resistance at all.

[fastbob]

You do have teeth on both sprockets don't you ? I

[oldgrump]

You do have teeth on both sprockets don't you ? I

 

Like this!

 

Sorry just had to post< came in on a Honda City fly couple years ago, Guy reckons wouldn't move forward very well!!!!!

Now hangs on workshop wall

[fastbob]

You do have teeth on both sprockets don't you ? I

 

Like this!SAM_1092.JPGSAM_1093.JPG

Sorry just had to post< came in on a Honda City fly couple years ago, Guy reckons wouldn't move forward very well!!!!!

Now hangs on workshop wall

 

If you ever visit Bike Bits breakers in Coventry they have a rear sprocket hanging in the shop that actually has no teeth at all , not even bumps. The bike was ridden there from Leamington Spa which is about 15 miles !

[JRH]

But [mention]oldgrump[/mention] that is a circular saw blade.