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GL15Brewer
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« on: August 12, 2021, 09:10:40 AM » |
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So was driving my 97 tourer to work this am and when I hit about 3500 rpm I'd loose drive power but the rpms would jump. Was like I dropped into neutral. As soon as I let off and rpms came back down to under 3500 it would ride smooth again. Any thoughts on what this could be? I have rebuilt the carbs recently due to sticking after sitting for to long. All vacuum lines ad fuel lines new. Pingle petcock. OEM air filter. Hoping I make it home. Should I even try to ride it home? Thanks all.
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GL15Brewer
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« Reply #2 on: August 12, 2021, 09:50:39 AM » |
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Mobil 1 the full synthetic racing. Think it's like R4 or something. 10-40 I believe. Says its wet clutch safe. So it also makes a loud noise when in gear and I pull the clutch in all the way.
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Bagger John - #3785
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« Reply #3 on: August 12, 2021, 09:56:25 AM » |
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So it also makes a loud noise when in gear and I pull the clutch in all the way.
Was it ever hard to use the clutch (lever travel stopped partway through the range of motion)? If so I'd suspect the clutch damper plate. |
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GL15Brewer
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« Reply #4 on: August 12, 2021, 09:59:07 AM » |
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Haven't noticed any difficulty shifting? Just cruising then feels like it slips and no more forward thrust and the rpms rev way up. Like I said it's like I pulled the clutch while on the freeway.
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yrunvs
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« Reply #5 on: August 12, 2021, 12:33:44 PM » |
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Could be that the little hole inside the clutch resevoir at the bottom under the metal guard is plugged. If it is you will have a clutch slipping symptom like you described. Clean it out and flush clutch with dot 4
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« Last Edit: August 12, 2021, 12:43:37 PM by yrunvs »
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I'm no gynecologist but hey I'll take a look!
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GL15Brewer
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« Reply #6 on: August 12, 2021, 01:00:44 PM » |
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I did just flush the clutch line, very well could be something floated into there. I'll try and give it a good flush when I get home. I keep getting paranoid I broke teeth on the drive gear before rebuilding the carbs and replacing the petcock and didn't know it. Would it run at all if that was the case? What are the symptoms of a broken drive gear? Thanks for all the help everyone.
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yrunvs
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« Reply #7 on: August 12, 2021, 01:08:13 PM » |
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But did you clean out the bottom hole under the metal guard after empting out the resevoir? Qtips work well. The metal tab/guard is only friction fitted and comes off easily
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« Last Edit: August 12, 2021, 01:19:32 PM by yrunvs »
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I'm no gynecologist but hey I'll take a look!
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John Schmidt
Member
Posts: 15199
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #8 on: August 12, 2021, 01:12:45 PM » |
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I did just flush the clutch line, very well could be something floated into there. I'll try and give it a good flush when I get home. I keep getting paranoid I broke teeth on the drive gear before rebuilding the carbs and replacing the petcock and didn't know it. Would it run at all if that was the case? What are the symptoms of a broken drive gear? Thanks for all the help everyone.
You do know there's two small holes in the bottom of the mastercylinder...right? One is rather large and quite obvious, the other is hidden under that little removeable cover and the hole is about the size of a human hair. If it's covered or blocked at the depression it sits in, you can overlook it cuz it's so tiny. |
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The emperor has no clothes
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« Reply #9 on: August 12, 2021, 02:00:33 PM » |
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I did just flush the clutch line, very well could be something floated into there. I'll try and give it a good flush when I get home. I keep getting paranoid I broke teeth on the drive gear before rebuilding the carbs and replacing the petcock and didn't know it. Would it run at all if that was the case? What are the symptoms of a broken drive gear? Thanks for all the help everyone.
I don’t think you need to worry about any of that. The suggestion about the TINY hole at the bottom of the master cylinder is a good one. If it is blocked it could very well be doing what you are describing. |
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GL15Brewer
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« Reply #10 on: August 12, 2021, 07:20:45 PM » |
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Ok so I used a syringe and needle (I work in a hospital) and sucked out fluid by the little hole and put it back on top. Ride home had no issues. Grabbed some dot 4 on the way and sucked out everything in the reservoir and used a pick to clean it up. Refilled and will see how the rid to work tomorrow goes. Almost done building my manometer and will hopefully get to balancing carbs this weekend. Love being back on the valkyrie. Thanks again all.
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GL15Brewer
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« Reply #11 on: August 13, 2021, 06:51:34 AM » |
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Ride in to work was great no issues. Wondering what that little hole I clogged is? Is it a vent?
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yrunvs
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« Reply #12 on: August 13, 2021, 09:12:42 AM » |
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Smarter people might chime in with better info but I think its a sort of fluid return/vent hole that must stay cleared or you will experience clutch slippage. Im glad cleaning it out worked for you.
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« Last Edit: August 13, 2021, 09:15:11 AM by yrunvs »
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I'm no gynecologist but hey I'll take a look!
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Bagger John - #3785
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« Reply #13 on: August 13, 2021, 10:20:51 AM » |
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Smarter people might chime in with better info but I think its a sort of fluid return/vent hole that must stay cleared or you will experience clutch slippage. Im glad cleaning it out worked for you.
Correct. If it's plugged, the assembly acts as a one way valve and the slave cylinder won't fully disengage. Think of a line lock on a drag race car's front brakes. |
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WintrSol
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« Reply #14 on: August 13, 2021, 10:44:45 AM » |
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As the fluid heats up, it expands; that vent is there to keep the pressure from building up. BTW, your brakes can do the same thing.
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98 Honda Valkyrie GL1500CT Tourer
Photo of my FIL Jack, in honor of his WWII service
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GL15Brewer
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« Reply #15 on: August 13, 2021, 04:17:50 PM » |
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Noted. The brake side was not nearly as dirty when I flushed them last. I'll check it though.
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