Hornet 250 sprockets/chain?

[sparky.scott]

Hi all

Recently ive noticed that when im changing down gears rapidly with a little bit of back brake on, any lower gear than 3rd and the back wheel starts to skip teeth on the sprocket and locks up the wheel for a split second then spins and locks up again.
Ive had a look at both the sprockets and neither are missing any teeth and i lube my chain frequently.

Does anybody have any clue on what could be causing this?

[NOMIS]

Hi all

Recently ive noticed that when im changing down gears rapidly with a little bit of back brake on, any lower gear than 3rd and the back wheel starts to skip teeth on the sprocket and locks up the wheel for a split second then spins and locks up again.
Ive had a look at both the sprockets and neither are missing any teeth and i lube my chain frequently.

Does anybody have any clue on what could be causing this?

i dont think that is your sprokets skipping dude, the rear wheel lock up is usually because of the hard down shifting and the gears trying to catch up ,

some techy please explain more im going to bed

[Ryan432]

What is happening is just compression braking, try not changing down to the lower gears until you are moving a bit slower and it will stop, Usually the first couple gears are geared shorter so you accelerate faster but they don't do so good at pace..

[xwhatsit]

If you blip your throttle as you downchange this won't happen.

When you lock the rear wheel on most bikes I've tried, it seems to make a rather disconcerting noise and vibration initially more often than not (not engine related, clutch in or out, whatever). I assume this is some sort of chain-related shenanigans (as in it's suddenly reversed the direction of tension or something and it's *snapping* tight mebbe?).

[Pumba]

the rear wheel lock up is usually because of the hard down shifting and the gears trying to catch up

Sounds like you are changing ito two lower gear to soon and as said the speedyou reaer wheel is spining in faster tha the speed your engine and therefore front sproket is spining causing the rear wheel to lock up until such time as the speed between the two is matched.

As already stated I also doubt it will be chain sliping otver the sprockets, if they are in good condition as you say. More likely the noise wil be from the chain slapping and the chattering of the rear wheel as it rapidly slows down (they can makesome funny as noises).

Best thing you can do to prevent this happening is try to reduce your speed more before changing down or by "bliping" the throtle increasing your engine/front sprocket speed before releasing the clutch. I wont explain the best way to do this, do a search cause I am sure somone will be able to explain it far better than I can.

[NOMIS]

. I wont explain the best way to do this, do a search cause I am sure somone will be able to explain it far better than I can.

on a hornet best way is to have your foot already starting to press down thru the gear, then as your read to change push harder blip the throttle and dont use the clutch... works for me very well. you may need the clutch at lower speed if you do this. If you want I can show you if you ever want to go for a ride.

[sparky.scott]

If you want I can show you if you ever want to go for a ride.

Thatd be good apart from the fact that we live on different ends of the country

[NOMIS]

Thatd be good apart from the fact that we live on different ends of the country

haha yeh i read that after i posted lol

[sparky.scott]

Hey all

Just thought id let you all know that i tried that blipping of the throttle today and it works a treat even though all the boy racers are busy trying to kill me (I hope not but it seems that way lately)

Thanks all for your help