This supplementary information applies to manuals with a copyright date of 20050712 (see back cover). Manuals having later copyright dates may already reflect this supplementary information.
Please see Page 8, Figure 12K. This figure shows the 3mm nuts evenly spaced at .875 in. (22 mm) from the firewall. This works well for some motor shafts but may be lessened or expanded to reflect different lengths of motor shafts. The important thing here is that the motor shaft be able to extend through the front of the cowl and still securely hold the propeller without the propeller contacting the cowl. A distance of 1-3/32 in. (27mm) works well for many popular motors.
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