NEED HELP "Lost Torque"

[r0bertt]

I was riding on freeway yesterday I got up to like 85mph and I was about to exit when I notice I was losing torque, the engine revs, but I was slowing down. I push the bike to a parking lot to let it cool, I turned the key getting ready to start the bike, then I hear the fan... I never heard the fan before when I normally turn the ignition... I attempted to ride again, but I was not going anywhere... I can also start the bike in 1st gear and it does not stall out or anything. There is little to no torque if any... The bike starts normal, does not over heat, just no Torque when I roll on the Throttle... Can anyone help me out, or let me know what the issue might be, before I take it to a professional...

[blensen]

Sounds to me like your clutch is toast.

[pefrey]

Sounds to me like your clutch is toast.

This.

[r0bertt]

How do I determine if its acctually the clutch once I open it up... What exactly do I look for on plates...

[DonTZ125]

Measure the thickness of the frictions. Measure the free length of the springs. Clean the steels, inspect for bluing and warping. (Check the manual for specs)

If anything fails, replace as a set - frictions (almost guaranteed to be toast), springs, or steels; the groups that pass can be re-used.

[r0bertt]

Measure the thickness of the frictions. Measure the free length of the springs. Clean the steels, inspect for bluing and warping. (Check the manual for specs)

If anything fails, replace as a set - frictions (almost guaranteed to be toast), springs, or steels; the groups that pass can be re-used.

Thanks a lot

[r0bertt]

Measure the thickness of the frictions. Measure the free length of the springs. Clean the steels, inspect for bluing and warping. (Check the manual for specs)

If anything fails, replace as a set - frictions (almost guaranteed to be toast), springs, or steels; the groups that pass can be re-used.

How do you torque the bolts to specification on the clutch when reassembling?

[blensen]

Very carefully. You don't want to go over the recommended 7 lb-ft or you will snap off a bolt in the clutch basket (ask how I know... twice...). I would advise either buying a small torque wrench that reads in inch-pounds and convert it. FYI, 7 lb-ft=84 lb-in

[DonTZ125]

You mis-spelled "4.3 lb-ft" ...

[blensen]

So I did...

[r0bertt]

Very carefully. You don't want to go over the recommended 7 lb-ft or you will snap off a bolt in the clutch basket (ask how I know... twice...). I would advise either buying a small torque wrench that reads in inch-pounds and convert it. FYI, 7 lb-ft=84 lb-in

Thanks lots... Looks like I'm investing in a Torque wrench... How difficult was it getting the bolt out once you snapped it...

[r0bertt]

So this is what need for the torque 4.3lb-ft = 84lb-in???

[reelrazor]

.. How difficult was it getting the bolt out once you snapped it...

Getting the bolt out is not THE problem.

The snapped off 'tower'/boss that the bolt threads into in the clutch basket will be your biggest worry.

[blensen]

4.3ft-lb=51in-lb roughly. If you break a bolt off you will not be able to extract it.

[DonTZ125]

As RR suggested, you are less likely to snap the bolt itself than you are to tear out the spring tower in the clutch hub./ This is a fairly light casting, and this damage would be irreparable.