Jumping out of gear in 2nd/3rd ZZR400

[superstacker]

Hi guys,

My ZZR400, having issues with the gearbox,

basically during harsh accleration it jumps out of second and third gear back into neutral, which isnt nice

i think its load related as when i have a passenger this happens lower in the RPM range.

Is this a gearbox issue? Would i have to remove the engine to fix it?

all help appreciated!

[tatters]

Gears are fu*ked and its only going to get worst, plus its a full engine strip down to sort out.


very common on the ZZR600 and thundercat as well.
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[superstacker]

Bugger, looks like a good time to drop the 600 lump in then!

[mr.z]

Oh dear.. yes its the old problem.. the part to fix it is 50p but it does as has been said require a full engine strip..

Theres a guide online somewhere on how to do it (try some zzr forums) looks straightforward enough just a bit time consumeing!!

Not 100% sure but i think its the selector forks? worth changeing them and the selecter drum, i think they come to about £60 or so..

Out of interest how many miles are on the clock?

If you do a rebuild then it will look good when you come to sell (or at least anyone who knows what they are looking for)

Good luck


/The zzr600 lump is a good idea, 400/600 are almost idenicle appart from the 400's bore is smaller which makes the bike a sheeit load heavyer fromt he extra metal!
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