Where is the spark plug on a Kawasaki Ninja 250?
There are two spark plugs on the Kawasaki Ninja, located in the engine, underneath the seat. The motorcycle’s spark plugs provide a spark inside the cylinder wall of the engine.
Do motorcycle spark plugs come pre-gapped?
Most also come pre-gapped and are well designed to resist electrode burnouts from excess heat combustion. You are less likely to experience engine misfires with a spark plug that’s higher on the price scale.
What if my spark plug gap is too big?
One of the key factors that makes a spark plug work well, or not, is the size of the gap between the electrodes. However, if the spark plug gap is too large, the spark is unlikely to consistently “jump” across the long distance between electrodes, thus leading to a rough-running engine or one that doesn’t run at all.
What would cause a spark plug gap to close?
If you are using the correct length spark plugs then a possible cause is that the connecting rod bearings are failing. This allows the piston to rise up farther than normal due to excessive slop in the connecting rod. The piston hits the spark plug and closes the gap.
What kind of spark plugs do I need for my Ninja 250?
All NGK CR8HSA plugs for the Ninja 250 should come with crush washers. AGAIN: DO NOT run anything other than NGK or Nippon-Denso plugs in this engine. The NGK part number you want is CR8HSA. Number CR7HSA will work, but only in really cold weather (not “California Cold”).
How do I set the spark plug gap on my engine?
Spark Plug Gap setting is important for proper engine operation. To set the spark plug gap correctly, you need to use a spark plug gap tool. For reference, see our spark plug gap chart below, this chart converts metric measurements to standard. How to Change Spark Plugs – Spark plug Gap setting and Gap cross reference chart
What happens if you put Champion spark plugs in a ninja?
If you’re unlucky, a piece breaks off and destroys your combustion chamber. Traveling 25 miles at highway speed is about how long it takes for Champion spark plugs to die a horrible death. We don’t recommend that anyone use Champion brand spark plugs on their Ninja 250, or any other vehicle, for that matter.
What kind of spark plugs do I need for my NGK?
Nippon Denso part number is U24FSR-U. 1996-2007 model bikes have a stronger CDI ignition system, and resistor plugs are the only ones recommended by NGK for these years. That’s what the ‘R’ in CR8HSA stands for, so use those. For 1986-1995 models, non-resistor C8HA or C8HSA can be used.