Honda Activa: An Idiot’s Guide to Solving Carburetor Problems

The exchange took only 25 minutes. And the scooter came back to life! It started with the second diesel bringing it back to life.

BHPian anjan_c2007 recently shared with other enthusiasts.

The carburetor on the Honda Activa (rather all new generation scooters) is really very possessive of vacuum and will do its duty very obediently if its love of “vacuum” is duly respected. If this is not the case, the owner can face problems that could frustrate him or her to no end.

Therefore, the rubber vacuum hoses around the carburetor must be in decent condition and checked regularly. It should be of good quality without a doubt. If there are cracks in these tubes, even a fraction of a millimeter, the carburetor is causing problems. It just can’t work. The fuel line must also be in order. Any crack here means a leak of fuel and can be easily noticed. But the other whistles don’t make such obvious, bold statements and need to be physically verified.

Another component is the insulator on the front of the carburetor where it connects to the engine. This insulator/packaging in my Activa was cracked/broken in two, but the two screws held the carburetor tight and in place. As a result of this break, my Activa would not start at all. During my DIY work, I disassembled the carburetor. It was not until the two carburetor mounting bolts were removed that the cracked insulator was observed. I bought a new insulator and also a green gasket (total cost only Rs 40=00).

The blue arrow shows the cracked insulator (also circled) and its old gasket in use

Sample photo of a new insulator

The exchange took only 25 minutes. And the scooter came back to life! It started with the second diesel bringing it back to life.

So always respect the carburetor’s love of vacuum!

Read the BHPian comments for more insight and information.