Fuel Controller Install, Suzuki Boulevard M50 Edition

So, a couple of weeks ago, I decided to do a fuel controller install so I could run a set of short pipes (the pipes have baffles for added quietness and backpressure, so I don’t burn up exhaust valves and so on, the fuel controller ensured the engine would not run lean, and thereby prevent the valves from burning up, which would have happened if I had run the K&N air filter and the low-restriction exhaust on the stock fuel mapping).

So, here we go!

Step 1: Pull off tank and disconnect connectors and fuel line.

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Yep, this little brown one was a pain.

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Set the fuel tank on the ground near the bike, tilted up, so I could keep the fuel in the tank instead of all over the ground.

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Step 2: Disconnect electrical connectors and vacuum hoses from the intake sensors:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement
Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition

Unscrewed the screws for the air box and also got the little pain in the ass hose clamp screw from behind the airbox mount:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement
Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition

And these were a little annoying to get to:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Disconnected another vacuum line from the intake boot:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

And...the boot’s removed!

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Next, reach fingers down as far as I can stretch them and get the electrical connectors for the injectors:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Now to connect the fuel controller connections:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

The one behind the coolant cap is kind of a pain to get to:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

And connect the plugs again...

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Connect the ground wire to a spot where it won’t melt:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Button it all up in reverse order and there ya go!

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

She might not look the best, but she’s got it where it counts. She’s a work in progress at the moment. Plans are to get the paint cleaned up and go from there.

Much easier doing the fuel controller on the Suzuki M50 than it was to do the jet kit on a Kawasaki ZRX I dearly miss:

Carbs in:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

Carbs out:

Illustration for article titled Fuel Controller Install, Suzuki Boulevard M50 Edition
Advertisement

The carburetor bank comes out as a set, and goes in as a set. Woof!

Share This Story

Get our newsletter