Lost my main needle valve (.51) and need to know if the 40 size will work,,would buy new if someone knows if super tiger will work and best $$$$$,,,thanks, jim (also,,know the value of the Testor RC engine apx. 29 to 35 size,,also, the same for U/C engine,,,)

The Super Tigre should work. Try to find a source that will let you try it first.

I am using the Harry Higley replacement needles, Tower has them.

Como was a super Tigre sold by Indy RC until a cease and desist was issued by Great Planes the importer of Super Tigre motors. All Super Tigre parts of the comparable year and models are interchangeable

WOW, someone else besides me has one. Great running engine(really). Harry Higley is a great direct replacement.