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Clutch slipping in 1st under WOT? (Read 485 times)
ThumperPaul
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Re: Clutch slipping in 1st under WOT?
Reply #30 - 04/15/23 at 13:43:39
 
It would take a pretty good carb flooding for it to be what I described.  Did the bike ever seriously flood since the last oil change?  It would take something pretty noticeable.  Dang on the 85mph for 2 hours!  I have no experience on these bikes doing that!  That might be the culprit, but that still seems like a lot of oil consumption.  Good luck. I’m outta ideas. Maybe somebody else with more experience with these bikes can weigh in.
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och
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Re: Clutch slipping in 1st under WOT?
Reply #31 - 04/15/23 at 15:36:52
 
ThumperPaul wrote on 04/15/23 at 13:43:39:
It would take a pretty good carb flooding for it to be what I described.  Did the bike ever seriously flood since the last oil change?  It would take something pretty noticeable.  Dang on the 85mph for 2 hours!  I have no experience on these bikes doing that!  That might be the culprit, but that still seems like a lot of oil consumption.  Good luck. I’m outta ideas. Maybe somebody else with more experience with these bikes can weigh in.



Nah, I don't think there were any major flooding, if any, I think it may be just running the engine under high stress for a prolonged time. I know this bike isn't made for high speeds, but man it keeps up like a champ, and I'm having way more fun on it than the Harley guys have on theirs - they are just cruising their large displacement bikes at that speed, while mine feels like racing.

But I'm a bit worried about the consumption, because in the past I have ran it at WOT for 30-50ish mile distances, and ran it hard in the twisties with the sport bike riders, but it never consumed any oil. I wonder if mineral oil is more prone to consumption.

Now that I am thinking about it, I do smell burnt oil occasionally, and burn mineral oil has this very specific smell that reminds me of sunflower oil when its burning. Synthetic doesn't have this smell when it burns.
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ThumperPaul
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Re: Clutch slipping in 1st under WOT?
Reply #32 - 04/15/23 at 16:48:46
 
I hope it’s not this, but it’s the first place I’d look.  http://suzukisavage.com/cgi-bin/YaBB.pl?num=1099227295
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Re: Clutch slipping in 1st under WOT?
Reply #33 - 04/15/23 at 17:03:27
 
ThumperPaul wrote on 04/15/23 at 16:48:46:
I hope it’s not this, but it’s the first place I’d look.  http://suzukisavage.com/cgi-bin/YaBB.pl?num=1099227295


Nope, no leaks here. I had a major leak last year from the starter o-ring, but that has been fixed, and not a drop anywhere ever since. My fork is leaking, but that is another story that I will take care of.
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Re: Clutch slipping in 1st under WOT?
Reply #34 - 04/16/23 at 19:46:46
 
To revisit this, can low oil level cause the clutch to slip, or is it likely to be fried by now?
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Re: Clutch slipping in 1st under WOT?
Reply #35 - 04/16/23 at 22:36:47
 
I don't think so.
low oil causes rougher shifting, which might be from the clutch not fully disengaging.

slipping usually caused by low spring force or bad adjustment
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och
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Re: Clutch slipping in 1st under WOT?
Reply #36 - 04/20/23 at 16:27:11
 
Oil just came in, added almost an entire quart, so at least 1.25 quart total added, meaning I was running the bike with .5 to .75 quart last time. Thats bad.
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ThumperPaul
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Re: Clutch slipping in 1st under WOT?
Reply #37 - 04/20/23 at 16:39:23
 
Ya think?
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ThumperPaul
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Re: Clutch slipping in 1st under WOT?
Reply #38 - 04/20/23 at 16:44:58
 
And the math of you doing 85mph for 2 hours doesn’t make sense either.  That would be 170 miles and beyond the fuel capacity of the bike even riding 65mph for 2 hours.  You are beyond an oil change.
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Re: Clutch slipping in 1st under WOT?
Reply #39 - 04/20/23 at 16:55:13
 
And yes, your clutch is beyond slipping.  Hope your carb is health and you aren’t blowing smoke. No smoke - outta oil to do that.  Good luck and may the force be with you.
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Re: Clutch slipping in 1st under WOT?
Reply #40 - 04/20/23 at 16:59:37
 
ThumperPaul wrote on 04/20/23 at 16:44:58:
And the math of you doing 85mph for 2 hours doesn’t make sense either.  That would be 170 miles and beyond the fuel capacity of the bike even riding 65mph for 2 hours.  You are beyond an oil change.


We did make a short fuel stop. I was getting terrible mileage too, about 25mpg at that speed.
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Re: Clutch slipping in 1st under WOT?
Reply #41 - 04/20/23 at 19:34:56
 
Yeah, once you factor in the time at Zero mph to get gas it starts making sense to run slower and get better mileage and it will take less time to get there.
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Re: Clutch slipping in 1st under WOT?
Reply #42 - 05/01/23 at 12:54:41
 
Been riding quite a bit today, and my clutch is done. Anything past 60 mph, twist the throttle moderately hard and its just slipping. Have to ease in the throttle to keep accelerating past 60mph.

I changed the oil over the weekend, went with synthetic Liqui Moly, will keep an eye on the level.
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Re: Clutch slipping in 1st under WOT?
Reply #43 - 05/01/23 at 12:55:33
 
How long can I expect the clutch to last before it completely cuts out?

Can you guys recommend what I need to purchase when I'm ready to do the repair?
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Re: Clutch slipping in 1st under WOT?
Reply #44 - 05/01/23 at 13:04:54
 
och wrote on 05/01/23 at 12:54:41:
I changed the oil over the weekend, went with synthetic Liqui Moly, will keep an eye on the level.


Using an oil with a high Moly concentration will CAUSE the clutch to slip. Can can only assume that it has a high concentration given it's name. You need to use a motorcycle oil that is formulated specifically for wet clutches or Shell Rotella which has proven to be safe for wet clutches.

When you did your oil change, did you inspect the oil for clutch plate friction material? Did it look almost silver or like someone added sparkles?
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