Pinging testing
Extreme HDF Member
Joined: Aug 2012
Posts: 11,392
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From: Big ol Titties
Not only does this compromise the performance of your bike (internal combustion engines run best with cool dry air mixed with gas and no oil), but the oil going into the combustion chamber builds up carbon deposits and effectively raise the compression ratio.
So now you have a bike that ran fine for thousands of miles, and then started pinging.
What do most people do? They treat the symptom instead of the cause. They retard the timing, thus reducing the performance of the bike even further.
What would be far better for engine longevity AND performance is to get an air cleaner, like an Outlaw 587, that does NOT feed that hot dirty oily air into the engine.
Once you do that, there are a few ways to get the carbon deposits out of your combustion chamber without pulling it apart.
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Grand HDF Member
Joined: Nov 2004
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From:
The cause apparently is carbon buildup due to dirty air I guess but if the motor company agrees that they need to add fuel then so can you. Personally I'd bite the bullet and find a reputable tuner in the area and get it fixed with the proper tune. If your still running stock then your running pretty lean from the get go. If that's not a route your willing to take hen maybe running some seafoam through your gas tank a couple of times might help s well. 1 other thing comes to mind is going to a colder plug such as the 10R12 from HD. This may help some but not sure, I run this year round but I don't ride in extreme cold either.
Ultimate HDF Member
Joined: Jan 2009
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From: East Tn Foot of The Dragon
DT Glide is likely correct. Carbon build up on pistons or combustion chamber will raise compression and thus a ping. Retarding timing to correct this will effect mpg and performance. Routing the crankcase breathers out of the combustion chamber may help, burning quality name brand fuel to incl pure gas will help, RPM's hot will help prevent/remove carbon build up, over fueling motor with "a tuner" will cause carbon build up. To eliminate this in automobile engines, the only product I have found over the years is Chevron Techron. Install 4-5 oz's to a full tank of fuel and run the motor to operating temp and ride it hard to high rpm's multiple times. Leave set overnight and do it again. May have to treat system several times. This stuff does work, and the injector version of this product works better then the fuel system cleaner version. No, I did not advise you to use Seafoam product, there is use for Seafoam, but it does not perform even close the the Techron.
Last edited by checkers; May 19, 2013 at 06:45 AM.
Outstanding HDF Member
Joined: Aug 2008
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The topic of venting the crankcase to the atmosphere is common. I did this to mine about a year ago, and have noticed great improvements. As someone else mentioned, your engine is not fond of burning moisture (a normal byproduct of an I. C. E.) and oil either.
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Outstanding HDF Member
Joined: Aug 2011
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From: On. Canada
Can you explain what you did?
Outstanding HDF Member
Joined: Aug 2011
Posts: 2,464
Likes: 4
From: On. Canada
DT Glide is likely correct. Carbon build up on pistons or combustion chamber will raise compression and thus a ping. Retarding timing to correct this will effect mpg and performance. Routing the crankcase breathers out of the combustion chamber may help, burning quality name brand fuel to incl pure gas will help, RPM's hot will help prevent/remove carbon build up, over fueling motor with "a tuner" will cause carbon build up. To eliminate this in automobile engines, the only product I have found over the years is Chevron Techron. Install 4-5 oz's to a full tank of fuel and run the motor to operating temp and ride it hard to high rpm's multiple times. Leave set overnight and do it again. May have to treat system several times. This stuff does work, and the injector version of this product works better then the fuel system cleaner version. No, I did not advise you to use Seafoam product, there is use for Seafoam, but it does not perform even close the the Techron.
Never mind......
Last edited by Pete6114; May 19, 2013 at 08:18 AM.