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whats up guys. 2004 sportster. 21 inch front wheel if that matters. So today I was forced into the middle of two lanes by a car who of course didnt see me. I went right into a fat pot hole, and ever since then I have a lot more noticeable vibration. Heavy vibration. I at first thought it was a bent rim but when I came to a stop, I still felt that vibration, through the foot pegs and handlebars. And at certain rpms I feel it harder. Any ideas? Im expecting the rubber mounts are probably bad or something of that matter.
Take a look at your front motor mounts and see if they are sagging.
Does the vibration change with engine speed? If you are moving at speed and pull in the clutch and chop the throttle does it go away? It is possible your primary chain is loose or possibly has a tight spot in it, but that would not have been caused by hitting a pot hole.
Take a look at your front motor mounts and see if they are sagging.
Does the vibration change with engine speed? If you are moving at speed and pull in the clutch and chop the throttle does it go away? It is possible your primary chain is loose or possibly has a tight spot in it, but that would not have been caused by hitting a pot hole.
so I tried it right now on my lunch break. With the bike just sitting at idle I cant really tell if the mounts are bad, I sat ont and gave it a few revs, definitely a lot more vibration with higher rpms. I pulled in the clutch and rolled and it went away until I revved it again. Im convinced its the mounts
If you put the bike on a lift (or lay down in front of it) you can see the two front motor mounts. The photo below is from the viewpoint of having the bottom of the engine at eye level and looking straight at the front of the frame. If they are sagging it will be obvious.
If you put the bike on a lift (or lay down in front of it) you can see the two front motor mounts. The photo below is from the viewpoint of having the bottom of the engine at eye level and looking straight at the front of the frame. If they are sagging it will be obvious.
so I took a look at it today. I tried tightening the big but it had but it doesnt seem to want to get tighter, it just gets a little bit more tight then looses all the tension after a 1/2 turn.
Crazy, I just checked mine after reading this thread and mine are sagging too. I guess my bike is 14 years old, any idea how many miles/years you usually get out of the rubber mounts?
tried it again like that and what do you know haha it got tighter. Idk why I didnt do that in the first place. Most of the excessive vibration is gone now, I feel like its still a little different then before hitting the pot hole but that might just be in my head.
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Engine excessive vibration. Any ideas??
