Excessive Engine Vibration or Normal?
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,590
Likes: 3,362
From: Cental, MI
I have twice. Piston was coming up and only down in spark plug hole like an inch. On the flywheel I saw 1 dot, then 2 dots, then the line. Set timing when the red light just turned off going clockwise. Locked it down. Then had serious rattle can sound at higher rpms when I got on it. Right now she loving 50 pilot 195 main and turned CW a little more but my gas mileage is ****. Reserve comes in at about 100 miles. 4.2 gal tank I ride it hard though.
Seems like not enough Advance..required perhaps if ya time on Exhaust Stroke!!
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Intermediate
Joined: Sep 2024
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From: Tulsa OK
Are you shitting me? I can't get the ICM light to come on from cam pickup on the other stroke. What would that mean then?
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Intermediate
Joined: Sep 2024
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From: Tulsa OK
I followed the manual instructions on how to static time it by watching the pushrods open then close the intake valve.
Last edited by Lando Evo; Oct 15, 2024 at 01:49 AM.
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From: Tulsa OK
[QUOTE=t150vej;21841105]If the light doesn't flash at key on, turn the module a little and try key off/on again. If the light still doesn't do one blink, it's wired wrong or a bad module.[/QUOTE
I already said I timed it according to the manual by watching the intake valve to ensure it was on the compression stroke. Timing is close but could use some adjustment possibly.
I ordered a new VOES and will replace all vacuum lines. Once installed I'll go from there. I'll also replace the footboard pads since they are hardened and deteriorate and not dampening as designed.
I already said I timed it according to the manual by watching the intake valve to ensure it was on the compression stroke. Timing is close but could use some adjustment possibly.
I ordered a new VOES and will replace all vacuum lines. Once installed I'll go from there. I'll also replace the footboard pads since they are hardened and deteriorate and not dampening as designed.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,104
Likes: 7,632
From: Poolville
The timing must be set with the T/F timing mark on the compression stroke of the front cylinder set in new window perfectly then adjust your ignition plate.. Normally The rev limiter is set to 6000 with your build and also
I'm not surprised that you have vibrations in the higher RPMs You are so far retarded it's ridiculous.. Also I believe that the ultimate ignitions have two aggressive of a timing curve and with that said would run curve 3 not curve 2..
The DynaJet D2Ki you can run on curve 2 on a higher compression motor without fear of detonation, the curve is a little more linear than the Ultima..
I also totally agree with
@johnjzjz
back a couple years ago I had him balance my S&S 4 5/8" crank with axtel 30° Pistons with my compression being up at 11.25:1 and from 2,700 RPM up to 6,500 RPM the motor truly is smooth as silk..
However What you do sometimes to satisfy the higher rpm range will affect the lower rpm range.. With that said I do have a minor vibration at 2200 to 2400 RPM but it's not that bad at all..
I would probably run the bike in the higher RPM range had I had better lifters I seem to have an issue with them at times in the high range..
If it turns out your ultima ignition is not functioning properly I would get a DynaJet 2KI...
I'm not surprised that you have vibrations in the higher RPMs You are so far retarded it's ridiculous.. Also I believe that the ultimate ignitions have two aggressive of a timing curve and with that said would run curve 3 not curve 2..
The DynaJet D2Ki you can run on curve 2 on a higher compression motor without fear of detonation, the curve is a little more linear than the Ultima..
I also totally agree with
@johnjzjz
back a couple years ago I had him balance my S&S 4 5/8" crank with axtel 30° Pistons with my compression being up at 11.25:1 and from 2,700 RPM up to 6,500 RPM the motor truly is smooth as silk..
However What you do sometimes to satisfy the higher rpm range will affect the lower rpm range.. With that said I do have a minor vibration at 2200 to 2400 RPM but it's not that bad at all..
I would probably run the bike in the higher RPM range had I had better lifters I seem to have an issue with them at times in the high range..
If it turns out your ultima ignition is not functioning properly I would get a DynaJet 2KI...
Last edited by 98hotrodfatboy; Oct 15, 2024 at 08:07 PM.
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Intermediate
Joined: Sep 2024
Posts: 35
Likes: 25
From: Tulsa OK
The timing must be set with the T/F timing mark on the compression stroke of the front cylinder set in new window perfectly then adjust your ignition plate.. Normally The rev limiter is set to 6000 with your build and also
I'm not surprised that you have vibrations in the higher RPMs You are so far retarded it's ridiculous.. Also I believe that the ultimate ignitions have two aggressive of a timing curve and with that said would run curve 3 not curve 2..
The DynaJet D2Ki you can run on curve 2 on a higher compression motor without fear of detonation, the curve is a little more linear than the Ultima..
I also totally agree with
@johnjzjz
back a couple years ago I had him balance my S&S 4 5/8" crank with axtel 30° Pistons with my compression being up at 11.25:1 and from 2,700 RPM up to 6,500 RPM the motor truly is smooth as silk..
However What you do sometimes to satisfy the higher rpm range will affect the lower rpm range.. With that said I do have a minor vibration at 2200 to 2400 RPM but it's not that bad at all..
I would probably run the bike in the higher RPM range had I had better lifters I seem to have an issue with them at times in the high range..
If it turns out your ultima ignition is not functioning properly I would get a DynaJet 2KI...
I'm not surprised that you have vibrations in the higher RPMs You are so far retarded it's ridiculous.. Also I believe that the ultimate ignitions have two aggressive of a timing curve and with that said would run curve 3 not curve 2..
The DynaJet D2Ki you can run on curve 2 on a higher compression motor without fear of detonation, the curve is a little more linear than the Ultima..
I also totally agree with
@johnjzjz
back a couple years ago I had him balance my S&S 4 5/8" crank with axtel 30° Pistons with my compression being up at 11.25:1 and from 2,700 RPM up to 6,500 RPM the motor truly is smooth as silk..
However What you do sometimes to satisfy the higher rpm range will affect the lower rpm range.. With that said I do have a minor vibration at 2200 to 2400 RPM but it's not that bad at all..
I would probably run the bike in the higher RPM range had I had better lifters I seem to have an issue with them at times in the high range..
If it turns out your ultima ignition is not functioning properly I would get a DynaJet 2KI...
HDF Community Team
Joined: Dec 2005
Posts: 5,404
Likes: 2,605
From: NC USA
According to the photo, that is neither a Dyna 2ki or an Ultima. Just so you know, it's a Chinese copy of one or the other.
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Intermediate
Joined: Sep 2024
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From: Tulsa OK
Yeah I know. I'm gonna save for D2Ki and replace it asap
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