Knock knock- FM 107 noises
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Joined: Feb 2009
Posts: 93
Likes: 0
From: Mid-Michigan
I have run a few sets of woods cams in my bike throught its stages and they have always been noisy. I did have a woods lifter that failed at high rpm that started with a similiar situation (mine got louder the warmer it got) and then eventually collapsed. This just happened last week. Waiting to see if woods will warranty it, may run a set of s&s premiums next. Just a thought
Tourer
Joined: Jul 2013
Posts: 389
Likes: 9
From: MT
2) Describe the noise & location before & after.
Road Warrior
Joined: Jan 2008
Posts: 1,446
Likes: 8
From: greenwood, mo
If you think it is a bad lifter pull pushrod covers and the bad liftervthe pushrod will be loose,I had a woods lifter go bad on my FM 107 called them they sent me another set fixed problem call FM they will work with you and they make things right great customer service
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Tourer
Joined: Jul 2012
Posts: 335
Likes: 3
From: Seattle (Alki)
Hi folks.
This wasn't supposed to be a Fuel Moto bash on my part. I'm pretty comfortable with the motor at this point. Both the guy that put it together, and a second Indy shop have tested it and said its solid. I agree with the FM assessment from my original post sometime motors have a harmonic noise that transmits. Time will tell but I'm happy with the motor, just sounds different than what I've previously had.
This wasn't supposed to be a Fuel Moto bash on my part. I'm pretty comfortable with the motor at this point. Both the guy that put it together, and a second Indy shop have tested it and said its solid. I agree with the FM assessment from my original post sometime motors have a harmonic noise that transmits. Time will tell but I'm happy with the motor, just sounds different than what I've previously had.
Road Captain
Joined: Aug 2007
Posts: 642
Likes: 3
From: Bellmawr, New Jersey
The knocking noise is still a concern for me! I have heard 106's, 110's, and larger builds that don't have this knocking sound. If the knocking sound is an effect of CAM and engine combination, I am interested to know if changing to a cam other than woods (with the same characteristics of the woods 555 or 777) would resolve the issue.
Outstanding HDF Member
Joined: Jan 2014
Posts: 2,482
Likes: 239
From: Minnesota
I installed the woods 555 cam and lifter set from FM. It sounded great for about 1500 miles but now has developed a ticking noise that comes and goes. To the best of my knowledge it seems like a failing lifter because it comes and goes and sounds like one lifter. I'm gonna readjust pushrods and see if it helps.
Tourer
Joined: Dec 2009
Posts: 440
Likes: 7
From: wisconsin
I installed the woods 555 cam and lifter set from FM. It sounded great for about 1500 miles but now has developed a ticking noise that comes and goes. To the best of my knowledge it seems like a failing lifter because it comes and goes and sounds like one lifter. I'm gonna readjust pushrods and see if it helps.
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