[AT] Firing on two instead of four

[Gene Dotson]

    Tim;
    What spark plugs are you running in this tractor? For light use and to 
prevent fouling you should be running D21's or equivilent to prevent 
fouling. Do not use resistor wires or spark plugs.
    Check your high power needle in the carburetor, it may be running too 
rich, set it at between 2 and 1/2 turns initially.
    How are you cleaning your plugs? merely scraping the carbon off won't 
help the fuel fouling. The insulator needs to be cleaned completely. I clean 
mine in my bead blast cabinet.
    I believe you said it has a distributor? Does the tractor have 6 volt 
battery system and a 12 volt coil? Tractor was originally equipped with a 
magneto and may not be firing hot enough
                        Gene



----- Original Message ----- 
From: "Tim Nobles" <tnobles at netsync.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Monday, November 27, 2006 7:44 PM
Subject: Re: [AT] Firing on two instead of four


>I haven't been back out to test any theories yet and may not make it back 
>out until the weekend.  But I did "eye" the gap and thought it didn't look 
>too close.  Will get the feeler guages out next time and report back. 
>Thanks for the input.