HOW-TO: Change the Spark Plugs on your Yamaha R3

#NGK #sparkplug #yamahar3 #howto #diy
Changing the spark plugs on your motorcycle is vital to the overall service routine and should be done regularly. Yamaha recommends replacing the plugs at 7000 mi (11,000 km) and subsequently every 6000mi/10,000km). Since I am on the racetrack quite often in the summer months, I chose to replace my sparks at least once a season. If you are riding the bike on the street only, you can most likely get away with changing the sparks at the suggested mileage intervals (vs. yearly)
The manufacturer model for the spark plug is NGK CR8E, and the recommended spark plug gap is 0.7 to 0.8mm (0.028-0.031 in). When installing the plugs, the recommended torque specs are 13Nm.
I have selected the NGK CR8EIX (Iridium) for my bike since the Iridium plugs (or electrodes of the plug) offer better conductivity, but they will be a bit more expensive than the standard CR8E. You will find quite a few debates on the web about the benefits (and cons) of the iridium plugs, so it really comes down to a matter of preference. Regardless of your selection, replacing the spark plugs on your bike at regular intervals will provide a slight performance improvement.
The process of replacing the plugs is relatively easy and does not require a lot of time. As with most projects, removing the tank (and fairings) is usually the time-consuming portion of this procedure.
In this video, I will discuss the tools needed to gap the plugs. I will also show you how to remove the tank, access the plugs, and then how replace them.
Happy wrenching!
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Disclaimer - This video is for educational purposes only.

[@PradeepSinghBisen]

Hi, Yamaha usually recommends using NGK CR8E spark plugs but instead of that can an iridium based spark plug (NGK CR8EIX) used without gapping?

[@bridgetterose7607]

What year yamaha r3 are you working on?

[@landry555]

Hi! One of them is a 2018 and the other one is a 2019.

[@charleskyzer7138]

Will the gas run out of the tank?

[@landry555]

you’ll have a small amount that will leak when you disconnect the hose but it will be minimal.

[@charleskyzer7138]

@@landry555 I got a 2021 R3" 12,500 miles, somewhere around 7,000 rpm or when I get up to 45 mph it starts to cutting back and something shut off! No problem starting up! Got a friend that drove it for me" he said he believes it is the spark plugs! You think that could be what it is?

[@landry555]

it’s possible, I’ve had similar issues with my R6 and had to replace the ignition coils (and the sparks). Could also be the fuel pump, filter, clogged injectors. It’s a relatively easy task to replace the spark plugs, so it’s a good idea to start with that. Do you have an error code on your display? That could help narrow down the troubleshooting.

[@charleskyzer7138]

@@landry555 my bike at my brother in law, I don't remember seeing a code, I'm going there in the morning to take the tank off! I will look and make sure! Thanks for the intel!

[@ricardoespsanto]

Why not torque it to spec?

[@landry555]

Hi! Good question. I didn’t use the torque wrench simply because I’ve done this so often that I know approximately how much force I need to apply to torque this in place. You should definitely use the torque wrench and the specs I mentioned in the video if you are unsure. I should have been more specific in the video. Thank you for asking the question! Cheers, /Marco