Connect with us

Back

TIPS & TRICKS

Useful hints from modelers ILLUSTRATIONS BY RICHARD THOMPSON STRINGING UP NEEDLE MOVEMENT The needle valve will back out from the vibration while the motor is running on some 2- and 4-stroke engines. Here is a simple way to help prevent that from happening. Pull out the needle valve and slide the O-ring from its ring groove. Wind a few rounds (3 or 4) of sewing thread around the needle valve ring groove. Slide the O-ring...

Copyright © 2025 Air Age Media. All rights reserved.