Buell running lean

[buellinoz]

My bike is stock, we tried new plugs , even thro the old ones looked perfect. No change. still pinged. Good news, the local dealer is going to repair the head gasket etc under warranty and try to locate why it pings. They had were not convinced that pinging had caused the gasket to blow !!!!!?????
One magazine i read mentions an ignition module overheating ( down by the cam drive )and then causing problems, as a replacement fixed the issue. Anyone found a definitive answer to the pinging.
Blocked injector is possible but bike ran fine and had no flat spot when wound on.Just went into instantaneous ping. Any thoughts ?

 

[buellinoz]

Here's another thought......bit left field but who knows. Back preasure can cause pinging due to detonation and the Buell exhaust is very exposed to dints from speed humps. Mine has a ding front , middle and back and thats happened while being careful ! Maybe this has caused an internal restriction thats just enough to over pressurise the chamber under load ?? At a glance you'd say no way, as they are not severe dints that require a pull out. Any thoughts ??

 

[bahamasair]

Mine is all dented to **** and I dont have pinging. Pinging is caused by the fuel/air mixture detonating before the spark plug fires. Usually caused by excessive pressure. Id think it would have to be timing but there are a bunch of things that can cause it.

 

[dan50]

For what it's worth, when my plugs were removed & new ones installed, they were apparently soaking wet according to the guy who pulled the plugs (I had the dealer do it because of the warrenty). I haven't looked into why the plugs were wet, mainly because it cured the pinging problem I had. If the ping returns, which hopefully will happen while the warrenty is still active, I will look further into it. It could be some sort of fuel delivery issue.