Slight Knock/Rattle when engaging 1st gear
 

Hello,
Well I just bought an 1988 cbr 1000F, So far loving the bike. yet when I engage first gear and begin to release the clutch I hear some sort of knocking sound comming from under the bike. it seems to be in lower rpms, and dont notice it through the rest of the gears. it doesnt seem too major yet, but something I def. cant ignore, any suggestions? thanks all!

RE: Slight Knock/Rattle when engaging 1st gear
 

Sounds like it could be clutch basket-related - only happens going into 1st from neutral ?
Is the clutch slipping at all ? Maybe clutch springs are not all pushing with same tension, causing problem from a standstill ?
Maybe a worn gear selector ?

RE: Slight Knock/Rattle when engaging 1st gear
 

Yea it only seems to be 1st from neutral, doesnt seem like the clutch is slipping. once clutch is realeased and rpms start build the noise goes away. its just seems pulling off the line from standstill, I hear it.

RE: Slight Knock/Rattle when engaging 1st gear
 

I just realized my clutch fluid is low, do you think this would have something to do with the sound? Sounds easy, just go down and buy dot4 fill it up and see what happens. yet the bike is my only transportation, and the nearest store that has it in stock is 20miles away. Yea I live out in the sticks... I have dot3 but dont want to use something other then its called for. I assume it'll hurt something?

RE: Slight Knock/Rattle when engaging 1st gear
 

oh yea, and why would it be low? I dont see a leak, kinda curious how i'd loose fluid if I dont see something leaking. thanks!

RE: Slight Knock/Rattle when engaging 1st gear
 

check and lube the chain there might be a tight spot

Still helpful!
 

Wow! It is 2014 and this is still useful info. After adjusting the chain I was still getting the rattle. Cleaned and lubed the chain and everything is good. Thank you.


Ken