Stop the Shaking
Stop the Shaking
I was reading Cycle Magazine Tech section, and they explained how carbon can build up on piston heads and can cause an imbalance and cause motor shake. The recommended solution was to get a good grade of engine treatment like STP Gunk gone, you know the little bottles you pour in the tank of your car. Well I did this yesterday and today. I put a half a bottle in my gas tank and drove it hard for couple of hours and I can tell a difference at idle. My 2001 FLHTC doesn't shake as bad at idle. I'll let you know if it improves more after the second tank.
Has anyone heard of this before?
Has anyone heard of this before?
Road Warrior
Joined: Mar 2010
Posts: 1,441
Likes: 48
From: Eastern N.C.
can tell you that I use seafoam in mine. bought it used and it had alot of top end noise. seafoam took care of that. now I use alittle in just about tank full, keeps mine running nice. use this stuff in every engine I have. try it, I know you will like it.
kroozeabout. wal-mart about 8.99 or 7.99 pt.
kroozeabout. wal-mart about 8.99 or 7.99 pt.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
Sounds to me that mag was doing a marketting job for an advertiser! I've been riding Harleys almost 40 years now and that is the first time I have heard about that 'problem'! If your bike starts shaking, check the engine mounts. If you want to 'treat' your bike occasionally, simply run it to the redline a few times in the lower gears - that will probably shift any carbon build-up.
Trending Topics
Supporter
Joined: Jul 2007
Posts: 2,196
Likes: 10
From: Shenandoah, TX
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Road Captain
Joined: Oct 2010
Posts: 747
Likes: 7
From: NY
Mine was too smooth :/ So I got a 103 Big Bore and a cam now it shakes just right 
I did notice on the original piston tops there was quite a bit of carbon. Hmmm, does going from stock lean to fuel enriched make this inevitable ?
I seem to remember as a kid pouring water in the buicks' carberator to steam clean it lol
SC
I did notice on the original piston tops there was quite a bit of carbon. Hmmm, does going from stock lean to fuel enriched make this inevitable ?
I seem to remember as a kid pouring water in the buicks' carberator to steam clean it lol
SC