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Harley evo engine 1997

Vibrations between 1800-2200 rpm. both motor mounts are good.

Posted by Anonymous on

1 Answer

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  • Harley Davidson Master
  • 40,748 Answers

Hi Anonymous, and the usual suspects are:
1. Wheels and or tires unbalanced, worn or damaged.
2. Engine/transmission/vehicle not aligned properly.
3. Primary chain badly worn or links tight as a result of insufficient lubrication or misalignment.
4. Engine to transmission mounting bolts loose.
5. Upper engine mounting bracket loose.
6. Ignition timing incorrect/poorly tuned engine
7. Internal engine problem/ flywheel shift
8. Broken frame
Good luck

Posted on Jun 12, 2015

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Posted on Jan 02, 2017

  • 101 Answers

SOURCE: engine vibration at 1800-rpm and up 1340 evo 1994 dyna.

Hi .... This may sound daft but have you recently changed or had the exhaust off ? Have a look at the silencer/muffler rear mounts, difficult to explain but they should be in a 'neutral' position, not fully pushed in. Maybe the vibes are coming straight along the pipes from the engine and through the footpegs.
Let me know how you get on.

Posted on Jan 03, 2009

Mitchy123
  • 216 Answers

SOURCE: were do you drain the oil on a 1340 evo motor

Evo's drain from the oil tank, not the engine

Posted on Jun 16, 2009

  • 2418 Answers

SOURCE: 2005 lowrider vibration problem numb hands and

Bring it over let me ride her for a few years and I'll fixit for a small fee.  That front mount may be worn enough to cause this. May be a timing thing, or a vacuume leak at one head, get some wd 40 and spray on the manifold when she is running, rev it up and spray it, if you have some leak this will make it show up. Then clean her up, get that junk off my engine before you bring it over. 

Posted on Jun 30, 2009

wd4ity
  • 4565 Answers

SOURCE: help with harley engine

I don't know of anyone that makes such a spacer. If you have an idea with which to replace the original engine mounts, go for it. You'll probably see a few of them.

Posted on Jan 12, 2010

agent91
  • 2100 Answers

SOURCE: problem is vibration at 2500 rpm to 3000 rpm its

The last guy that wrote in here with the vibration problem was told his crank is shot!!! These are fairly new bikes, how do you get a bad crank shaft?? Somebody is screwing up. I was thinking that his cam timing was out of whack so it would miss and cause vibration like a funny car. But he didn't believe that one. Anyway, check it out. You might have to get a new bottom and swap your jugs and heads over to the new engine. Or just part out the old one and get a whole new engine. Hope this helps.

Posted on May 13, 2010

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1 Answer

2005 harley ultra classic- excessive vibration between idle and 3500 rpm-also 2 second ignition mis fire.


Hi Anonymous, and the usual suspects are:
1. Wheels and or tires unbalanced, worn or damaged.
2. Eng ine/ transmission/vehicle not aligned properly.
3. Primary chain badly worn or links tight as a result of insufficient lubrication or misalignment.
4. Engine to transmission mounting bolts loose.
5. Upper engine mounting bracket loose.
6. Ignition timing incorrect/poorly tuned engine
7. Internal engine problem.
8. Broken frame
Good luck

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Hi James, and the usual suspects are:
1. Wheels and or tires unbalanced, worn or damaged.
2. Engine/transmission/vehicle not aligned properly.
3. Primary chain badly worn or links tight as a result of insufficient lubrication or misalignment.
4. Engine to transmission mounting bolts loose.
5. Upper engine mounting bracket loose.
6. Ignition timing incorrect/poorly tuned engine
7. Internal engine problem/ flywheel shift runout should be .003" max.
8. Broken frame
Good luck and have nice day.

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My 1998 wideglide has a motor bad motor vibration from 1500-2000 rpm's runs good the rest of the time?


Hi Charlie, and the usual suspects are:
1. Wheels and or tires unbalanced, worn or damaged.
2. Engine/transmission/vehicle not aligned properly.
3. Primary chain badly worn or links tight as a result of insufficient lubrication or misalignment.
4. Engine to transmission mounting bolts loose.
5. Upper engine mounting bracket loose.
6. Ignition timing incorrect/poorly tuned engine
7. Internal engine problem/ flywheel shift runout should be .003" max.
8. Broken frame
Good luck and have nice day.

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1 Answer

I have a bad vibration on my 94 fxdlonly6 when i am slowing down or at a certain rpm but it is totally fine at a steadypace or when accelerating


Ok, the Dyna series bikes have rubber mounted engines but the mounts have a tendency to only absorb the higher frequency vibrations. When the engine is idling or running at RPM's lower than about 2000, you can feel the engine vibrations. I have a 1994 FXDWG and it does the same thing. This is normal for all engines with rubber motor mounts. However, since the bike has quite a number of years on it, it would be a good idea to check the mounts and the stabilizers to see if they might need replacement.

Good Luck
Steve

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1 Answer

'03 FLTHPI 43,000 miles.Vibration between1,500 & 2000 rpms. before or after that it smooths out.


You could have a problem with the rubber engine mounts or the stabilizer links or both. It's not unusual to have a vibration at idle and up to about the 2000 rpm point on most rubber mount machines. This is because the rubber mounts are designed to dampen the high frequency vibrations at the engine speed people usually ride at, over 2000 rpm.

Now, if you've suddenly developed this vibration, I'd check the engine mounts and stabilizer links. The stabilizer links look kind of like those turn type cable tensioners. I think there are two on your bike, one up above the carb/ throttle body, and possibly one near the front motor mount.

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2005 dyna wide glide...fuel injected...have engine vibration during acceleration...bike is smooth free wheeling at 70 mph...vibration returns with engine speed...need help


I'd check the motor mounts. The front mount is easy to get to but the rear isn't quite so easy. I'd check the front mount and the top engine stabilzer.

I assume that you've owned this bike long enough to know how it should feel. The Dyna series has rubber engine mounts. They do a very good job of dampening engine vibration once the engine gets up in it's rpm range. When the engine is idling, the vibrations can be felt then. When accelerating, you can feel some vibration but it should be bad.

Check your engine mounts and your primary chain adjustment. If it's something to do with the fuel system, I'm afraid that a dealer is going to have to check that for you. Good Luck!

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My 2009 Dyna Super Glide Custom motorcycle has had an unusual amount of vibration overall when under way while accelerating or deaccelerating through 2nd, 3rd, and 4th gears. It seems to me to be either...


You can check for a loose or broken motor mount but you need to consider how the rubber mounts work. The mounts absorb high frequency vibrations. Low frequency vibrations will be felt throughout the machine.

On most Dyna's, the bike vibrates when idling. When accelerating though the gears (and decelerating back down) if the engine rpm's gets below about 2000 rpm's, you'll feel the vibration. Once above this level, the bike smooths out due to the change in frequency of the vibrations. I have owned a '94 FXDWG since new and this is my experience with the bike.

However, if the vibration is very bad, you may need to have it looked at by a technician. You'll have to determine that for yourself.

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If it is a rubber mount engine, try running thru the motor mount adjustment. You WILL need a manual for this. If it's a solid mount engine look for loose bolts and nuts, and not just on the engine. Parts still shake loose on Harleys, even a 2003.

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Engine vibration at 1800-rpm and up 1340 evo 1994 dyna.


Hi .... This may sound daft but have you recently changed or had the exhaust off ? Have a look at the silencer/muffler rear mounts, difficult to explain but they should be in a 'neutral' position, not fully pushed in. Maybe the vibes are coming straight along the pipes from the engine and through the footpegs.
Let me know how you get on.

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