Proper way to do a plug check?
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Joined: Sep 2006
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From: Punta Gorda,FL
Proper way to do a plug check?
I realize it is a good idea to do a spark plug check. I just installed some drag pipe baffles in my pipes, prior to that the bike was tuned with no baffles. Adding the baffles didn't seem to change the performance enough for me to notice. I was too lazy to do a plug check before adding the baffles so I don't know if the bike was running on the lean side then. I figure if anything the minimal baffling I put in the pipes should result in the bike running a little bit richer than it was.
My question is how do most owners do a plug check? Do you run the bike at highway speeds then try to shut the engine off as fast as possible, with minimal idling or do you drive around like you would normally for the day, with normal stop and go traffic and then do the check.
I would think that you would get two different readings depending on the type riding you do before the plug check.
Tom
My question is how do most owners do a plug check? Do you run the bike at highway speeds then try to shut the engine off as fast as possible, with minimal idling or do you drive around like you would normally for the day, with normal stop and go traffic and then do the check.
I would think that you would get two different readings depending on the type riding you do before the plug check.
Tom
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Joined: Feb 2006
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RE: Proper way to do a plug check?
Plug checks/throttle chops are no longer an acurate way to check for mixture since the removal of lead in the gas. What you see now is coloration mostly from additives in the gas and not from mixture adjustments. A sniffer that can be used to set the AFR (mixture) is the best way.
The plug checks can still be used for certain things like determining the heat range on the ground strap.It should change color about at the bend on the ground strap indicating that it is the proper heat range.
The plug checks can still be used for certain things like determining the heat range on the ground strap.It should change color about at the bend on the ground strap indicating that it is the proper heat range.
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fenderzig
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Nov 22, 2011 09:40 PM
