- known faults with the Redline 53?
- Results: Hayes black neoprene fuel line expansion
- Does anyone Dail-Indicate Heli's without fan/clutch collets?
- Any word on the new OS .91 HZ Heli engine ???
- os 91 szh hyper pumped how many head shims
- from os hyper to YS50
- OS 91 sz pumped or not
- OS91SZH running Hot
- INSANE amount of exhaust
- 'finger' test on a YS50
- OS 50 Trouble
- Nitro newbie has some questions...
- ys .61 trouble
- Did I burn anything else beside the glow plug on OS 50 Hyper?
- pipe needed
- ys 91 sr motor
- Did I ruin my engine?
- REMOTE GLOW LEAD
- Nitro newb needs help with throttle/engine setup!
- Glow-plug problems
- what to use to flush carbon fro inside as OS91
- Question about my OS 91SZ, backplate pressure fitting vs muffler pressure for tank
- no smoke?
- OS 50 SX-H Hyper throttle binds-sticks-jams
- can it be bad running a engine to rich?