- ys 60 st-h
- Make your own thermal epoxy
- YS 91SR sounds odd when loaded
- OSHYPER 50 ..How Lean ??
- More power out from a OS70???
- OS 50 Hyper a PIMA - help!!!
- Best pipe ?
- Cold OS 50 Hyper hard to start. Castor Problem?
- C-Spec Leaning out in flight
- Second hand engine question
- Question on OS .46 FXH
- Check the crank bearings!!!
- OMI Mod???
- OS 50 (non-hyper) has the hiccups
- Silicon Exhaust Deflectors - Aaargh
- Strange noises (movie)
- ys50st
- Pumped Motors
- Beginning of the end
- Glow plugs dieing!
- OS Hyper rebuild
- OS-50 running cold at less than 1 turn!!
- os sz 91 mufller
- I should know this, but....
- How many turns for the needle valve to run in?