Idle Mixture Screw Concealment Plug Removal

Some engines are equipped with tamper-proof idle mixture screws. If during diagnosis, it is evident that mixture adjustments are required, follow the procedures below to gain access to idle mixture screw.

Fig. 13 Removing idle mixture screw spring pin.:

Fig. 14 Removing idle mixture screw concealment plug.:

1. Mount carburetor in a suitable holding fixture.
2. Using a hammer and suitable drift, drive spring pin from throttle body, Fig. 13 & 14.
3. Reverse procedure to install using new spring pin.