Suzuki GT750 Spark Plug
GarageDex's powersports data shows the Suzuki GT750 uses a DR9EA spark plug, gapped to 0.026". Spark plug fitment varies by year - see the table for each range.
Spark plug fitment by year
| Years | Standard plug | Iridium upgrade | Gap |
|---|---|---|---|
| 1993 | DR9EA | - | 0.026" |
| 1975-1977 | CR9EK | - | 0.032" |
750cc motorcycle. Match the exact part code, thread reach, and heat range. The iridium column is the same-fit upgrade for a longer service life.
Spark plugs for your Suzuki GT750
The recommended plug is a DR9EA. Match that code - spark plugs are thread-, reach-, and heat-range-specific, so the part number matters more than the brand. Gap it to spec before it goes in and you're done.
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Frequently asked
What spark plug does a Suzuki GT750 take?
GarageDex's powersports data shows the Suzuki GT750 uses a DR9EA spark plug, gapped to 0.026". Spark plug fitment varies by year - see the table for each range.
What is the spark plug gap on a Suzuki GT750?
The Suzuki GT750 spark plug gap is 0.026". Set the gap with a feeler gauge before install - iridium plugs come pre-gapped but always verify, since a wrong gap causes misfires and hard starts.
Does the Suzuki GT750 spark plug change by year?
Yes - the fitment differs across the years we cover: 1993 uses DR9EA; 1975-1977 uses CR9EK. Match your exact year in the table.
How often should I change the spark plugs on a motorcycle?
Standard plugs typically want replacing every 8,000-12,000 miles (or per your service manual); iridium plugs go much longer. Fouled or worn plugs cause hard starts, misfires, and poor fuel economy - a cheap part that punches above its weight.