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Visseroth
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« on: July 21, 2014, 11:44:52 AM » |
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So over the past month or so I've been noticing what seemed like one cylinder seemed to have kind of a low tone pumping noise that was subtle but as I ride the bike pretty much every day I noticed it but couldn't put my finger on what the problem was. As of Friday it started getting really noticeable. More so when the bike is warmed up and there is definitely a noticeable vibration in the engine and I have no idea what is going on. Maybe I'm just being paranoid but take a listen and let me know what you think. If someone thinks I can make a better video just make a request and I'll get it recorded...... http://vid833.photobucket.com/albums/zz254/visseroth/Motorcycle/Valkyrie/20140721_084748_zpsfc903e6a.mp4 |
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« Last Edit: July 21, 2014, 05:56:07 PM by Visseroth »
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'98 Honda Valkyrie Standard 1520cc
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Skinhead
Member
Posts: 8727
J. A. B. O. A.
Troy, MI
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« Reply #1 on: July 21, 2014, 02:41:31 PM » |
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I guess I 'm not picking up any thing unusual. Try hold a strip of paper over each exhaust pipe and see if one doesn't blow the paper away from the pipe as much as the others, that would be you weak cylinder. Not sure it that will work, but it won't cost you much. If they are all the same, ride it like you stole it!
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 Troy, MI |
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Visseroth
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« Reply #2 on: July 21, 2014, 03:25:16 PM » |
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Thanks Skinhead, I'll do that as soon as I get home.
I will also be attaching some more images and videos as soon as they get uploaded. I had them uploaded them then accidentally deleted them because Photobucket has become a bit of a pain to manage when uploading photos from your phone.
This coming from a computer guy!
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'98 Honda Valkyrie Standard 1520cc
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Visseroth
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« Reply #3 on: July 21, 2014, 03:48:26 PM » |
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Here is what it looks like around the spark plug of #3    I'm still trying to get the other video and a spark plug image to come up correctly. |
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'98 Honda Valkyrie Standard 1520cc
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Visseroth
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« Reply #4 on: July 21, 2014, 03:49:51 PM » |
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Here is plug #2  |
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'98 Honda Valkyrie Standard 1520cc
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donaldcc
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« Reply #5 on: July 21, 2014, 03:57:47 PM » |
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could this be a plugged drain hole adjacent to plug?
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Don
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olddog1946
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« Reply #6 on: July 21, 2014, 04:41:06 PM » |
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You definitely have a plugged drain hole, might want to check all of them and run a wire down through those holes. Looks to me like that gap is too wide as well..
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VRCC # 32473
US AIR FORCE E7, Retired 1965-1988
01 Valk Std.
02 BMW k1200LTE
65 Chevelle coupe, 1986 Mazda RX-7 with 350/5spd, 1983 Mazda RX-7 with FOMOCO 302/AOD project, 95 Mustang GT Convertible 5.0, 5 spd
Moses Lake, Wa. 509-760-6382 if you need help
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Visseroth
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« Reply #7 on: July 21, 2014, 04:42:19 PM » |
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Will do and what is the gap supposed to be?
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'98 Honda Valkyrie Standard 1520cc
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Skinhead
Member
Posts: 8727
J. A. B. O. A.
Troy, MI
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« Reply #8 on: July 21, 2014, 04:51:10 PM » |
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I believe the gap on a regular plug is .032 - .035. You definitely have a plug drain hole on that cylinder. Put the plug back in, clean and blow out that hole, new plug(s) and wire(s) and you should be good to go. For what it costs you may as well do them all.
No need to bother with the paper thing now.
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Troy, MI |
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Visseroth
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« Reply #9 on: July 21, 2014, 04:52:52 PM » |
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stuck a wire up through the drain hole and low and behold it drained! Go figure, I didn't even know it was there!
Will be posting the other videos shortly and correcting the link up top
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'98 Honda Valkyrie Standard 1520cc
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Visseroth
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« Reply #10 on: July 21, 2014, 05:32:50 PM » |
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Crazy part is I just put new plugs in this spring. Those are the new plugs  |
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'98 Honda Valkyrie Standard 1520cc
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Skinhead
Member
Posts: 8727
J. A. B. O. A.
Troy, MI
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« Reply #11 on: July 21, 2014, 05:42:33 PM » |
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They would probably be fine once you clean them up. The plug wire may be cleaned up as well, but for all the hassle, might be easier to replace it and be done.
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« Last Edit: July 21, 2014, 05:44:46 PM by Skinhead »
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Troy, MI |
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Visseroth
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« Reply #12 on: July 21, 2014, 05:57:39 PM » |
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'98 Honda Valkyrie Standard 1520cc
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gordonv
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Posts: 5763
VRCC # 31419
Richmond BC
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« Reply #13 on: July 21, 2014, 09:17:34 PM » |
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But they where Iridium plugs. A nice sand blast, or other means of cleaning up, would be nice.
But there was that one that the electrode looked very black. Burning too rich?
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1999 Black with custom paint IS   |
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BobB
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« Reply #14 on: July 22, 2014, 08:43:06 AM » |
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My ears are detecting a possible valve slap on the left side. These beasts have solid lifters that have to be checked and adjusted from time to time. There is plenty of information on doing it here on this site.
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Visseroth
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« Reply #15 on: July 22, 2014, 09:35:51 AM » |
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I've checked and re-checked my valve lash. Everything is within spec. I did have a slight tick on the left side because I had a exhaust valve just a touch to tight so I went around and re-checked and re-adjusted just a touch. .006 on intake with .008 not going and .009 on exhaust with .011 not going in without force mind you.
If I have a carb or carbs running rich will syncing the carbs fix it?
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'98 Honda Valkyrie Standard 1520cc
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BobB
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« Reply #16 on: July 22, 2014, 02:33:34 PM » |
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A carb sync will not affect the richness issue. These beasts normally run richer than what you may be accustom to. However the plug you pictured early on seams a lot richer than mine. I don't have a great deal of experience with carb issues. Never had problems and I had Big BF tune up everything at Inzane in 2012. Still running great...
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Visseroth
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« Reply #17 on: July 22, 2014, 06:33:18 PM » |
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I'm going to pull the plugs tonight to clean and re-gap them but am seriously wondering if I may need to rebuild the carbs. At least take them apart and clean them and if I take them apart I might as well replace the seals.
Thoughts or suggestions?
Oh and to answer a previous question yes they are Iridium plugs
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'98 Honda Valkyrie Standard 1520cc
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Skinhead
Member
Posts: 8727
J. A. B. O. A.
Troy, MI
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« Reply #18 on: July 23, 2014, 05:36:12 AM » |
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DoThePluGs&WIre First. I'd Leave The Carbs Alone Unless You Conti.Ue To Have Problems. And Then I Would Try Doses Of Techron First.
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Visseroth
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« Reply #19 on: July 23, 2014, 09:13:01 AM » |
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OK. I'll get those on order. I already put some Seafoam in the tank along with some heat in case by chance I got bad gas.
I'll keep ya posted and thanks everyone for the help!
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'98 Honda Valkyrie Standard 1520cc
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Visseroth
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« Reply #20 on: August 02, 2014, 03:34:58 PM » |
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Well I have parts on order but decided to ask some more friends and do some more digging. I ohm'd out the coils and I have 2 bad coils. Amazingly the bike still runs but once warm sounds horrible.
Anyone have any suggestions on what the best set of coils are?
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'98 Honda Valkyrie Standard 1520cc
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Bone
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« Reply #21 on: August 02, 2014, 04:02:40 PM » |
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Haven't heard or read anything about the coils can't answer your question.
HDL has them 1 for "30510-KT7-023 COIL, IGNITION $81.89"
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Ricky-D
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« Reply #22 on: August 02, 2014, 05:09:39 PM » |
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The best coils would be OEM.
Especially since they are fired by the ignition module.
It would be a gamble to use some other coil.
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2000_Valkyrie_Interstate
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Visseroth
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« Reply #23 on: August 04, 2014, 02:27:18 AM » |
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OK, well OEM is what I ordered. I should have them by the end of the week along with some other parts as well as new plugs. So this weekend will be repair weekend.
I'll post back the results as soon as I have any.
Thank guys!
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'98 Honda Valkyrie Standard 1520cc
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Visseroth
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« Reply #24 on: August 14, 2014, 03:13:05 PM » |
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Well seems it wasn't completely the ignition coils. The bike seems to run a little better so moving on to ignition pulse generators and definately wires though they all ohm out at 4.7 ohms.
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'98 Honda Valkyrie Standard 1520cc
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Visseroth
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« Reply #25 on: August 16, 2014, 01:55:12 PM » |
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Does anyone know what the spark plug wires should ohm out at?
I'm getting about 4.7 ohms each.
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'98 Honda Valkyrie Standard 1520cc
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Ricky-D
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« Reply #26 on: August 17, 2014, 09:23:15 AM » |
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Have you even considered the exhaust system is what's causing your consternation.
If you put the stock exhaust system on the bike, everything would be fine.
What I mean is that how can you expect an engine to produce perfectly when the
individual exhaust pipes are all different lengths. Not only that, but the inside diameters
of the pipes are so large that efficiency goes out the window.
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2000_Valkyrie_Interstate
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Visseroth
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« Reply #27 on: August 19, 2014, 02:26:19 AM » |
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It's a good suggestion but i bought the bike used with these pipes on it and it ran great and smooth up tell about maybe a month ago then the exhaust started sounding deep and the engine started feeling rough.
The engine is definitely not smooth like it used to be and it got quite consistent half way back while on a short ride. It's barely noticeable when the engine is cold and very noticeable once warmed up.
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'98 Honda Valkyrie Standard 1520cc
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rugguy
Member
Posts: 245
2000 Valk I/S
Atlanta, GA
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« Reply #28 on: August 20, 2014, 05:57:07 AM » |
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Compression check?
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I hate sand....sand SUCKS!
I wear a helmet....."I'd rather have brains in my head than wind in my hair"
1999 Valk I/S
2000 Valk I/S
2001 BMW K1200 LTE (sold)
2002 FLHRSEI (for sale)
2006 FLHCTUI (sold)
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Visseroth
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« Reply #29 on: August 25, 2014, 10:20:17 PM » |
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Yea, I'm seriously hoping it isn't a compression issue! It's definitely coming up on my list since I don't exactly have any tools laying around to do a compression test.
Where do you guys get wires? Do you get OEM wires or buy aftermarket and just cut your wires and if you do after market wires how are you testing and replacing the caps or resisters or what ever it is that is at the end of the wire?
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'98 Honda Valkyrie Standard 1520cc
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Ricky-D
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« Reply #30 on: August 26, 2014, 06:34:36 AM » |
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The Valkyrie ignition is run/controlled by the ECU.
If you start to modify any part, you chance screwing up
the compatibility of the system, and can end up with
a more poorly running bike, and maybe even ruining
some of the other components of the system. Honda
developed a rather bullet proof ignition system. Do you
actually think you can improve on this system.
Stay with stock OEM components to avoid future problems.
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2000_Valkyrie_Interstate
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