Carburetor Rebuild Kit For Stihl FS38, HS45, BG45, FS55, MM55 – Fits ZAMA RB-100

If your Stihl trimmer, blower, or hedgetrimmer is hard to start, runs rough, or won't idle, the carburetor probably needs a clean and a rebuild.

This is a rebuild kit, the RB-100 type, which fits a bunch of popular Stihl models: HS45, FS55, FS38, BG45, and MM55.

It's a set of gaskets and diaphragms – basically all the paper and rubber bits inside the carb that wear out and get stiff.

It's an unbranded kit, but it's designed to fit the ZAMA RB-100 carburettors that are common on these Stihl machines.

It's brand new.

Instead of buying a whole new carb, you can often just rebuild the existing one with a kit like this for a fraction of the price.

It's a straightforward job if you're a bit handy.

So if your Stihl is playing up, grab this kit, strip the carb, give it a good clean, and put these new gaskets in.

Should have it running like new again.

A cheap fix for a common problem.