Engine - Hard Cold Start

88mazda09

Category Applicable Model/s

5 1986-1988 RX-7
Subject HARD START WITH COLD ENGINE
Bulletin No. 018/88
Issued 10/17/88
Revised
DESCRIPTION

The following corrective action should be taken if a customer complains of hard starting in cold weather conditions under the following situations:

^ Restarting after short distance driving.
^ After moving from garage, stopping engine then restarting.



REPAIR PROCEDURE

1. Change spark plug to new air gap type.

NOTE:
The new type of spark plug can be distinguished from others as follows.



2. Disconnect sub-zero starting assist device (if equipped).

NOTE:
Disconnecting the sub-zero starting assist device and the use of the new style spark plug are not recommended for carbureted engines prior to 1986. Mazda Motor Corporation has discontinued connecting the coupler for the sub-zero starting device. DO NOT reconnect this coupler at PDI or servicing.



PARTS INFORMATION
NOTE:
The above mentioned spark plugs (for hard start problem) will not be available until late October.

Old style spark plugs should be used at regular service intervals. The new style is recommended for customers with "Hard Start" problems.