Replacing your Spark Plugs

 

A quick tutorial for beginning wrenchers that outlines how to swap out your spark plugs and the tools you'll need to make the job easier.

The gap size for the 05 GSXR 750 spark plugs is going to be .028 - .031 for those diyers looking to ensure the correct gap size out of the box.

OEM spark plugs according to the service manual are NGK and I typically go with NGK iridium. While they are a bit more pricey the longevity of these plugs often outweighs the cost. If your bike is running rich then your may want to go with a hotter plug and for that I would say go with NGK coppers. The hotter running plugs will greatly reduce the amount of black oily residue you see on your plugs if your bike is running rich.

How do you know when its time to change your plugs? Typically at every service interval I zero out my second trip meter a dedicate this to my service maintenance milage time (Plugs, oil filter, and oil change). If your not one to clock your maintenance mileage via the trip meter then you normally can tell when it's time to change your spark plugs and perform your tuneup when you feel a lag in your bikes pick-up or feel a lack in throttle response.

Besides getting better fuel economy, changing the spark plugs at your recommended scheduled interval also helps eliminate the smell of unburnt gas or a strong exhaust odor which tends to cover your clothing in exhaust smell. Walk into any room after a short ride and the entire family instantly knows your home, they smelled you before you even came through the door..lol. Additionally, while you have this portion of the bike disassembled you're going to want to make sure you clean out the throttle bodies with some carb cleaner and clean out your air filter and box as well. These tend to get dirty quick!

Replacing your Spark Plugs