– Some will say that it’s not good to have a black spark plug tip color, for it will cost you more gas because the carburetor feeds more fuel.
Adjust as necessary using the air/fuel screw. After a while, please re-check your spark plug tip color. That’s the basics of tuning your carburetor. Listen to the engine and find the balance of the idle you want.ġ6. If it’s dropping then you’re feeding too much gas, if the idle goes way up, then you might be feeding too much air.ġ5. Using the flat screw, I will then adjust the air/fuel screw and listen to engine’s rpm. Now, I have a different technique in tuning my carb, after I take my scooter for a ride, I will then park it and put the center stand on, turn the engine on.ġ4. Assuming your carb is properly jetted.ġ3. This is used to adjust the fuel feed to the engine. Depending on the carburetor, it will depend on where we can find the air/fuel screw. But if you’ll be going on long rides and want to be safe, we can adjust it a little bit.ġ2. If you are satisfied with the sparkplug tip color, then I suggest you leave it be. Once you get the color we can then adjust depending on the weather, color, performance, and purpose of tuning.ġ1. Take a look at your spark plug tip once again, remember it could take a while for the spark plug color to change. Park your scooter, let it cool for a while.ġ0.
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Ride it as much as you can and open the throttle as full as possible if you can, just be careful on the road.ĩ. Start your engine and take it for a ride for at least 1 km or so. Using the steel brush, brush the tip of the spark plug (this is optional, but would be better so we can determine if we are successful or not in re-tuning your carburetor).Ĩ. Take a look at the sparkplug tip and remember it.Ħ. To remove the spark plug, you will need a spark plug remover.ĥ. * If black, that’s good but it depends on where you’ll use your scooter. * If white, not good because the carburetor is not feeding enough gasoline to the engine and this could cause knocking and may damage and lead to a broken piston. Locate your spark plug cap, remove it and inside you’ll see the spark plug.ģ. We need to take a look at the condition/color of the spark plug tip first. It’s easy, just open your seat and find the screws needed to be removed.Ģ.
Remove the engine cover, if you still have it. Engines differ in setting and specification.ġ. Please be reminded that any damage caused to your scooter/motorcycle while attempting to follow this guide is your fault and not mine. I’ve learned to tune my carburetor through experience and reading online.
THIS IS A DRAFT AND WILL BE FINALIZED AS SOON AS POSSIBLE.
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