shift question?
#1
09-06-2011, 05:31 PM
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shift question?
hey everyone, sorry if this is placed in the wrong category im new to the site, but i had a question that needed to be addressed.... i have a 1991 cbr1000f and im having a shift related problem, the bike had trouble shifting into 3rd and upper gears, the only way to get it into the higher gears was to halfway downshift then up-shift quickly and even that didnt work half the time, and now this problem is starting to happen to my first and second gears, i can barely even get it into first now from neutral, i have to pretty much kick the crap out of it for it to go into first, all fluids are topped off and the clutch is good, although i noticed when i took the clutch cover off and operated the clutch lever only the first two plates would kick out, i dont know if that has anything to do with it because im relatively new to bikes, but i feel like its clutch fork/ gearbox related.
it would be greatly appreciated if some one would HELP ME PLEASE!!
it would be greatly appreciated if some one would HELP ME PLEASE!!
Last edited by Sprock; 09-06-2011 at 05:57 PM.
#2
09-06-2011, 05:56 PM
Your clutch slave cylinder seal is most likely going or nearly gone !
Under the left mid fairing on the sprocket cover !
Ebay should have seal kits
Happened my 1990 last year ....... yours is right on schedule
Look for light oily fluid residue just below the sprocket cover
Under the left mid fairing on the sprocket cover !
Ebay should have seal kits
Happened my 1990 last year ....... yours is right on schedule
Look for light oily fluid residue just below the sprocket cover
Last edited by Sprock; 09-06-2011 at 08:39 PM.
#3
09-06-2011, 10:35 PM
Hey:
You also may want to check your fork seals and plug wires as those are made from simular material and have about a 20 year lifecycle in harsh wx enviroments. Do you live on a coast by any chance? Where are you located?
Dub
You also may want to check your fork seals and plug wires as those are made from simular material and have about a 20 year lifecycle in harsh wx enviroments. Do you live on a coast by any chance? Where are you located?
Dub
Last edited by CBR1988; 09-06-2011 at 11:23 PM. Reason: added?
#4
09-06-2011, 11:31 PM
Senior Member
#5
09-07-2011, 02:58 AM
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Hey , not to throw a spanner into the works of good advice , but do you have a full throw on the clutch lever ?? I mean does it feel like it is pushing stuff the whole way ?
Does the bike try to move in gear with the clutch in , standing still ?
(clutch dragging ? )
Have you done the whack her up on the main stand to see if the clutch is dragging ??
(Try 1st gear up on the stand to see if you can stop the rear from spinning EASILY ) but be careful to keep your fingers clear of all the moving stuff except the tire !!!
If she is not dragging , perhaps the linkages have been adjusted by some dick wit ? and they are sticking badly ? worth a look !
....
Does the bike try to move in gear with the clutch in , standing still ?
(clutch dragging ? )
Have you done the whack her up on the main stand to see if the clutch is dragging ??
(Try 1st gear up on the stand to see if you can stop the rear from spinning EASILY ) but be careful to keep your fingers clear of all the moving stuff except the tire !!!
If she is not dragging , perhaps the linkages have been adjusted by some dick wit ? and they are sticking badly ? worth a look !
....
#6
09-07-2011, 10:46 AM
Here's the problem I see here, you can do what has been suggested to see if it helps but......you should be able to shift the bike without a clutch once rolling down the road.
You say only 2 plates move. Have you tried to move them with a screwdriver with clutch in?
I would do as Cbrclassic suggested with the bike on the center stand but I would not use my hand, I would use the rear brake instead. It should give you the same info but safer.
Have you ever heard the term "Grabbing Gears"? This term refers to a rider with his feet hooked up on the rear of the saddle and while rolling the throttle off and back on rapidly while reaching down and grabbing the shifter and up-shifting. The wet clutch has enough slip to allow this kind of shifting if you plan on a lot of maintenance.
Can you grab 2nd for 1st w/o clutch? If so the clutch may be free. If 2nd to 3rd is a no-go the shifting forks may be bent.
I would try grabbing gears on the center stand as it's not as harsh as down on the pavement.
You say only 2 plates move. Have you tried to move them with a screwdriver with clutch in?
I would do as Cbrclassic suggested with the bike on the center stand but I would not use my hand, I would use the rear brake instead. It should give you the same info but safer.
Have you ever heard the term "Grabbing Gears"? This term refers to a rider with his feet hooked up on the rear of the saddle and while rolling the throttle off and back on rapidly while reaching down and grabbing the shifter and up-shifting. The wet clutch has enough slip to allow this kind of shifting if you plan on a lot of maintenance.
Can you grab 2nd for 1st w/o clutch? If so the clutch may be free. If 2nd to 3rd is a no-go the shifting forks may be bent.
I would try grabbing gears on the center stand as it's not as harsh as down on the pavement.
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