Retard the timing until the pinging stops.
Are your new plugs the same heat range as the old? How do the plugs look?
Check the plugs - your carbs may be set too lean.
Rick
----- Original Message -----
From "Jerry Goodman" <jerry.goodman at comcast.net>
To: "spridgets" <spridgets@autox.team.net>
Sent: Thursday, July 14, 2005 12:01 PM
Subject: plugs
> My 948 has some ping upon light acceleration in high gear.. I tried
> advancing
> spark...got worse....retarded it and still has a little. During recent
> tune-up I changed plugs to platinum Bosch...deeper plug than the Champion
> n3c
> that I had. Any thoughts
> Jerry G
> BE 59
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