"tinging" noise
Road Captain
Joined: May 2009
Posts: 505
Likes: 2
Its sensible to check for loose bits obviously but the clear thing here is that the sound is identical to the sound of detonation, it happens under acceleration which is when detonation occurs, hot weather, lower revs and heavier loads will all increase the likelihood of detonation.
You know what I think it is.....
Detonation is not a good thing - it kills engines and it can sometimes kill them fast. It needs to be looked at. Changing the riding style is the cheapest way of sorting it - only really works if you get it at low rpm riding and it's the bikes way of telling you to turn the throttle and stop being a wimp. Increasing quality of fuel is often all you need to do, sometimes boosters are needed, rejetting/remapping is sometimes required. Checking the ignition, timing, looking for airleaks in manifolds etc is also sensible. The key thing is to prevent it or the engine will damage itself, performance will gradually deteriorate and it will eventually be scrap.
You know what I think it is.....
Detonation is not a good thing - it kills engines and it can sometimes kill them fast. It needs to be looked at. Changing the riding style is the cheapest way of sorting it - only really works if you get it at low rpm riding and it's the bikes way of telling you to turn the throttle and stop being a wimp. Increasing quality of fuel is often all you need to do, sometimes boosters are needed, rejetting/remapping is sometimes required. Checking the ignition, timing, looking for airleaks in manifolds etc is also sensible. The key thing is to prevent it or the engine will damage itself, performance will gradually deteriorate and it will eventually be scrap.
Seasoned HDF Member
Joined: Mar 2009
Posts: 24,709
Likes: 9,209
From: Snow Hill, NC
My 07 FLHTC did this really bad they ended up putting a new 02 sensor and doing a download to change the fuel/air mixture...messed up my fuel mileage because they made it run richer...then got a stage 1 and SE breather...doesn't do it anymore.
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Road Warrior
Joined: Sep 2006
Posts: 1,570
Likes: 45
i have been messing with the same prob for long time now. i tuned most of it out with my
tts mastertune. what worked real good for me was to up the accel pump tables a couple
of units + more fuel in the o2 bias tables. i also retarded the timing a bit, but like i said
the biggest help was the accel.pump table it cured 90% of it.
tts mastertune. what worked real good for me was to up the accel pump tables a couple
of units + more fuel in the o2 bias tables. i also retarded the timing a bit, but like i said
the biggest help was the accel.pump table it cured 90% of it.
