Evo shake
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Outstanding HDF Member
Joined: Nov 2013
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If the plugs dont fix it, I wonder if unplugging the VOES might indicate the issue one way or another??? Kind of throwing it out there for someone more versed on it than me to discuss.. The thing that got me was your comment about the ignition not being right and that it comes and goes like a switch.. If you take the VOES out of the equation, it may make it good or bad at all times if its a timing problem.. Just a thought..
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
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From: Coromandel Peninsula New Zealand
There are some unhelpful comments in here, bottom line is....there shouldn't be a bad vibration patch at any revs, my Harleys have all had the ability to footle along in 5th at under 2K with no bad vibes so whatever your riding style it seems something is wrong and needs attention.
Trouble is you have looked over most things so the conclusion has to be that its something obscure or (more likely) something very simple.
I take it you have slacked off all the motor mounts and let it shake itself straight? I believe you have checked the vertical alignment and all the other obvious stuff but, as you are new to Harleys I would respectfully ask if you checked them all correctly??
A very specific vibe patch at 2K makes me think it could be a misfire but that needs confirming as with misfires its usually under specific conditions, load etc so if its stubbornly fixed at a certain RPM I am thinking its mechanical...balance factor, badly trued crank or cracked frame, mount etc.
There comes a point at which you may just have to give up on it and just ride the damn thing for the summer and see if your body tunes it out and you get used to it or if it gets worse.
Sorry I can't be of more use to you but its a long ride to NZ for you but I am thinking its something like the crank being out of true and you might be best to ignore it if possible until such time as you can investigate.....they all vibrate at some point but from my experience the type of problem you are having is usually crank balance or motor mount.
Trouble is you have looked over most things so the conclusion has to be that its something obscure or (more likely) something very simple.
I take it you have slacked off all the motor mounts and let it shake itself straight? I believe you have checked the vertical alignment and all the other obvious stuff but, as you are new to Harleys I would respectfully ask if you checked them all correctly??
A very specific vibe patch at 2K makes me think it could be a misfire but that needs confirming as with misfires its usually under specific conditions, load etc so if its stubbornly fixed at a certain RPM I am thinking its mechanical...balance factor, badly trued crank or cracked frame, mount etc.
There comes a point at which you may just have to give up on it and just ride the damn thing for the summer and see if your body tunes it out and you get used to it or if it gets worse.
Sorry I can't be of more use to you but its a long ride to NZ for you but I am thinking its something like the crank being out of true and you might be best to ignore it if possible until such time as you can investigate.....they all vibrate at some point but from my experience the type of problem you are having is usually crank balance or motor mount.
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Outstanding HDF Member
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Spanners, yes to the best of my knowledge I think I've done everything correctly however I've done some things more than once to be certain so I won't know until it's resolved. I aligned it once without and again with digital inclinometer, I loosened and let it run, was considering doing that with the weight on the back wheel since on the lift the wheel/swingarm is pushing the engine not letting it settle but I don't believe that is right. I haven't eliminated the crank position sensor because I'm not sure the right test. The manual test didn't work, assume i missed something and posted a question here to clarify. Aside from checking the ground and ohm rating on coil ignition and wires I don't know how else to test them, they tested within specs. I was leaning away from engine internals like he crank because it doesn't get worse with rpms. Open to suggestions and advice and some electrical test procedures to rule it out all
Seasoned HDF Member
Joined: Dec 2010
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From: Coromandel Peninsula New Zealand
Crank sensor either works it doesn't usually.
Engine shake should be done with bike on its wheels or the weight of the rear wheel loads the tranny downwards so do that again on the ground.
Crank balance factors will give vibes in one spot and not get worse with revs...crank damage such as big end will get worse with revs so it could be the crank still but try the shake down with the bike on its wheels.
Engine shake should be done with bike on its wheels or the weight of the rear wheel loads the tranny downwards so do that again on the ground.
Crank balance factors will give vibes in one spot and not get worse with revs...crank damage such as big end will get worse with revs so it could be the crank still but try the shake down with the bike on its wheels.
Road Warrior
Joined: Apr 2007
Posts: 1,952
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From: Senoia, Ga., by way of Miami, Fl..
There are some unhelpful comments in here, bottom line is....there shouldn't be a bad vibration patch at any revs, my Harleys have all had the ability to footle along in 5th at under 2K with no bad vibes so whatever your riding style it seems something is wrong and needs attention.
.
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Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
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From: Coromandel Peninsula New Zealand
You are most certainly one of the resident guru's.. But, with all due respect, I cant quite agree... With the factory style compensator sprocket on my Dyna, it is very smooth(for a Harley). With the BDL one I had on it, it was a very violent lug with any throttle, in 5th below 60(around 2kRPM).. I don't really believe anyone is saying this vibe is normal. The truth is we cant feel it through our computers, he has covered most options, and admitted this is his first Harley. Coming off a metric, the smoothest V-rod might feel like an unbalanced washing machine on spin cycle.. An experienced riders input might be very helpful..
Yes but his indy said there was something wrong too so for now I will assume its an issue but in my post I also said that he could try ignoring it and see if he tunes it out in his head....no V Rod will ever feel like a washing machine, they smooth-as...which is one reason I don't like them....they feel like Jappers
He also did his engine shake incorrectly so we might solve it soon.
Thread Starter
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Outstanding HDF Member
Joined: Nov 2013
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Crank sensor either works it doesn't usually. Engine shake should be done with bike on its wheels or the weight of the rear wheel loads the tranny downwards so do that again on the ground. Crank balance factors will give vibes in one spot and not get worse with revs...crank damage such as big end will get worse with revs so it could be the crank still but try the shake down with the bike on its wheels.
Spanners, correct engine shakedown, loosen all bolts wheels on the ground and run it. Top stabilizer link? Leave it alone? Recheck alignment after?
Last edited by br549A1; Jun 12, 2014 at 06:23 PM.
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Road Master
Joined: Oct 2011
Posts: 957
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From: Carlsbad Springs Ontario
I believe Spanner39 has hit it on the head ., and agree.
There are some unhelpful comments in here, bottom line is....there shouldn't be a bad vibration patch at any revs, my Harleys have all had the ability to footle along in 5th at under 2K with no bad vibes so whatever your riding style it seems something is wrong and needs attention.
Trouble is you have looked over most things so the conclusion has to be that its something obscure or (more likely) something very simple.
I take it you have slacked off all the motor mounts and let it shake itself straight? I believe you have checked the vertical alignment and all the other obvious stuff but, as you are new to Harleys I would respectfully ask if you checked them all correctly??
A very specific vibe patch at 2K makes me think it could be a misfire but that needs confirming as with misfires its usually under specific conditions, load etc so if its stubbornly fixed at a certain RPM I am thinking its mechanical...balance factor, badly trued crank or cracked frame, mount etc.
There comes a point at which you may just have to give up on it and just ride the damn thing for the summer and see if your body tunes it out and you get used to it or if it gets worse.
Sorry I can't be of more use to you but its a long ride to NZ for you but I am thinking its something like the crank being out of true and you might be best to ignore it if possible until such time as you can investigate.....they all vibrate at some point but from my experience the type of problem you are having is usually crank balance or motor mount.
Trouble is you have looked over most things so the conclusion has to be that its something obscure or (more likely) something very simple.
I take it you have slacked off all the motor mounts and let it shake itself straight? I believe you have checked the vertical alignment and all the other obvious stuff but, as you are new to Harleys I would respectfully ask if you checked them all correctly??
A very specific vibe patch at 2K makes me think it could be a misfire but that needs confirming as with misfires its usually under specific conditions, load etc so if its stubbornly fixed at a certain RPM I am thinking its mechanical...balance factor, badly trued crank or cracked frame, mount etc.
There comes a point at which you may just have to give up on it and just ride the damn thing for the summer and see if your body tunes it out and you get used to it or if it gets worse.
Sorry I can't be of more use to you but its a long ride to NZ for you but I am thinking its something like the crank being out of true and you might be best to ignore it if possible until such time as you can investigate.....they all vibrate at some point but from my experience the type of problem you are having is usually crank balance or motor mount.
I too am new to the Harley V twin but am experienced with Brit. V twins.
In my opinion ... considering the long stroke of a Harley , it would be reasonable to suspect a faulty plug or ignition system to add a " vibration " at certain rpms .?
I would replace the plugs first , and then back check the ignition and fuel system . Try spraying water on the spark plug cables in the dark and look for arcing etc. Do a standard compression test to check for a failing valve .
Im very interested as you say that this occurs like a "switch " effect ?
Let us know what you find .
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
. See that's why I ask, I thought as I looked at it that it should be run on the wheels, but the manual said lifted. I'll redo that for sure this weekend. I still want to check the crank sensor, voes is only suppose to fail completely too but mine was intermittent and would throw various ranges on the ohm meter. I could tap it with my finger and watch the ohms change. As far as the compensator I have a thread with pictures on that feedback was it looked fine. As far as the spring pack I haven't any answer. When it's bolted together, there's no play but that doesn't mean the springs couldn't be too weak with 40k miles on it. My tensioner shoe looks brand new. I even called every shop within 1 hour of where I purchased it attempting to get some history on the bike, came up empty. I'm watching the ads waiting for another dyna evo to come up for sale to look at.
Spanners, correct engine shakedown, loosen all bolts wheels on the ground and run it. Top stabilizer link? Leave it alone? Recheck alignment after?
Spanners, correct engine shakedown, loosen all bolts wheels on the ground and run it. Top stabilizer link? Leave it alone? Recheck alignment after?
If sensor changes readings when you tap it then its probably stuffed. Manual says do shake down in the air but I have never done them that way as it seems daft and my way works. so do as per your last paragraph and let us know what happens.