SPARK PLUG
Remove the spark plugs as follows:
- Remove the bolt securing the ignition coil.
- Pull out the ignition coil.
- Loosen and remove the spark plug using the box wrench in the tool bag.
Your outboard motor comes equipped with the following “standard” spark plug for normal usage.
Standard spark plug NGK LKR6E
Non-resistor types of spark plugs will interfere with the function of the electronic ignition, causing misfiring, or causing problems with other electronic boat equipment and accessories.
Use ONLY resistor type spark plugs in your outboard motor.
Your authorized Suzuki Marine Dealer can determine if the standard spark plug is suitable for your type of motor usage by inspecting the color of the plug’s porcelain center electrode insulator after operation.
If the plug tends to run hot (usually evidenced by whitening of the insulator or a burnt electrode), stop using your motor immediately as severe engine damage may result. If the plug tends to run cold (usually evidenced by blackening of the insulator or a wet electrode), performance may suffer. Ask your authorized Suzuki Marine dealer to evaluate either of these problems to determine the cause.
Use of improper spark plugs or improperly tightening spark plugs can cause severe engine damage.
• Do not experiment with other spark plug brands unless you can determine that they are directly equivalent to the specified brand, or you may experience engine damage which will not be covered under warranty. Note that aftermarket cross-reference charts may not be accurate.
• To install a spark plug; seat it as far as possible by hand, then use a wrench to tighten it to either the recommended torque setting or the specified rotation angle.
• Do not overtighten or cross-thread a spark plug, as this will damage the aluminum threads of the cylinder head.
To maintain a strong spark, you should clean and adjust the plug at the interval shown in the maintenance schedule.
Remove carbon deposits from the spark plug using a small wire brush or spark plug cleaner, and adjust the gap as follows:
Spark plug gap 0.8 – 0.9 mm (0.031 – 0.035 in.)
If the electrode or insulator is damaged, or if either shows excessive wear, then the spark plug should be replaced.
BREATHER AND FUEL LINE
Inspect the breather and fuel line for leaks, cracks, swelling, or other damage. If the breather and fuel line are damaged in any way, they must be replaced. Consult your authorized Suzuki Marine dealer if it is necessary to replace them.
