- OS 25 quits
- .50 SX Ring engine
- FS 91 V FS 91 pumped
- Need help with fuel for O.S. 91 Surpass
- 46 FX Different pistons?
- OS 91 Surpass I
- is this OS 120 surpass I -sp running?
- Low end needle drift possible ?
- OS 91 4 stroke bearings.
- Os 140 Fi
- OS 91 4 Stroke Carb Settings
- Trying to find a rear bearing for 46fx...ARRRGH!!
- OS .90 FSR Specs/Manual
- OS 7L carb adjustment
- Clockwise engine
- OS .25fx funny noise
- O.s.91 4stroke
- Another 120 Question
- Futaba FP-T7UAP PCM/PPM
- OS 50 Reviews
- Original 120FS engine
- compression ratio for os 46 fx ?
- 61FX rpm on ground
- problems with my new os 70, 4 stroke
- 61?
- 91 FX Question
- FS-91SII-P Muffler?
- Os Ft 1.20
- frozen barrels on #21 carbs
- os .61fx modification
- OS 120 pumped won't run
- carburetor body
- FS-30 Surpass weight
- 46FX runnning a 3-Blade Prop
- OS .91-VR Ducted Fan
- Os Ft160
- O.S. 91fx
- O.S. 50 SX carb
- FS-120 Surpass II pumped
- OS 70 Broken valve spring
- Os 160
- Os .61fx
- OS warranty and fuel Q.
- OS Max .10 Starting
- Os .91 Fx
- disc. engine
- OS 91 FS w/pump
- OS 1.60 crankcase tap
- 120 surpass W/pump
- OS Carb on TT Pro 46
- OS 120 Surpass
- Cline and Associates Regulators
- OS 90 4 stroke engine
- Os 61 Rf-p
- Schneurle porting
- OS 90FS Manual
- OS .46SF parts
- OS 160 junk???
- OS Max 30
- 46 max idle
- New OS 46FX Peeling Question
- 40 LA Changes
- Surpass 70MKII Inverted
- Upside down?
- O.S. 26 Four Stroke
- Engine Spec
- max rpm for 61fx
- #21 Carbs
- Dirt Damage
- Leaks
- os 46 fx max HELP
- OS-52 four stroke
- OS 160FX Stock or Pitts Muffler
- Fx 160 in G202 GP
- Inverted OS 25 fx (4 engines, B-17)
- OS 120 Surpass II
- Os .35 FP--need a head gasket.
- Os 61 Sf
- Tower muffler for 46FX
- Os50
- Tank level/clunk for a .40 FP
- Ft-300
- Muffler for OS 160 fx
- Surpass 120 w/pump
- Pumped FS 70?
- 46 FX Exhaust
- Air Bleed Adjustment LA 46
- 1.6FX - NIB crank won't turn
- Submerged O.S. F.S. 52 Four Stroke
- OS 1.60FX power?
- Pumped .61SF fuel line connections
- FS 90 backfire and needle valve problems
- OS 160 fx port timing
- os fx .61, pitts problem
- os surpass 70
- Carb setting on 21RG
- OS 25 needs more grunt
- Super heated OS .91FX, AMC:Help!
- Ziroli B-25 (101) approx 35 lbs
- Os .91fx
- My OS 10 wont run right
- HELP! My engine won't run!
- os52 exhaust
- O.S 120 II pumped
- More RPM's
- FX 46 making me nutz
- 18x6W or 20x6 for 1.60 FX
- 40LA Muffler fasteners
- C/L to RC conversion
- OS 46 & 61 SF ring replacement
- OS 70 Surpass
- FS-91 Surpass
- What is the expected life of an FX 46?
- rebuilding
- OS FS-70 repair
- OS 32 F Helicopter
- OS .46fx help....
- Is there a new OS 91???
- What size is the exhaust thread on OS 91 Surpass
- Cost of estimate ?
- Should I not repair my os 46sf?
- Need help on OS-91 FS II (no pump)
- 60 fx cyl peeling
- OS 70 SZ no mid range mixture
- Instruction Manual 7m Carb.
- Gummed up engines
- O.S. 46 LA Question
- FS-120s III
- 46 fx quits
- O.S. 1.6FX pressure tap-HELP!
- 46fx-h
- 46fx-h
- OS 160 FX setup
- .91 FX Prop selection
- Where is Ann Marie?????????????
- Fuel Pump
- OS 160 Twin exhaust extenders
- OS 46FX peeling
- Ring for 50SX?
- FS needle settings
- counter rotating engines
- 48 Surpass
- Os 30fs
- Pressure nipples
- OS 15 FP crank thread size
- Life Expectancy of the OS 50 SXH
- O.S. 1.6FX problem
- O.s. Engines Four Stroke
- Clattering and lost power in OS 70 FS
- Os 46 Fx
- O.S BGX performance curves
- .46FX rich midrange
- fuel for the RX140
- Idle mixture adjust for an older OS 1.08
- FT- 160 Engine mount
- OS FP35 - Old and rusty
- OS 32 Mounting hole blocked by remote needle valve?
- os 90 fs
- OS 46 only starts with Starter
- Os .10 Fsr
- Os 46 Fx
- OS140RX and muffler
- OS 46FX - starts backwards
- Fs120 Surpass wiyh pump
- OS91 Fan conversion
- Os 1.6fi
- OS 91FX Cutts out and flames out!
- Blubbery .50 SX
- Os Max 60sr
- 1.40RX eating bearings?
- lowest displacement O.S engine
- O.S. .61 FX help
- OS 15 LA liner problems/ what to do?
- Fuel Foaming
- .91FX Muffler vs .61FX Muffler
- .32 Sx
- OS 61 Fx substitute muffler
- Need answers from the pro's "OS Max 40 SR"
- OS 70 Heli engine problem
- OS 48fs broke valve cover, any comments?
- OS 120 Surpass Non Pump add pump?
- OS 70 surpass bogging at full throttle.
- OS 140RX pump problems? (long)
- OS Drive washer puller
- OS 52 low end mixture
- os max-H 40
- FX46 Cylinder Peeling
- 91 FX on U-Can-Do 3D
- Replacement Parts for TH engines
- I have a question
- After Run Oil
- Another 1.60/Bisson Pitts Muffler question
- Need AM Cross' Help with parts
- After run care (OS46)
- Does OS engines have warranty?
- Please Close Thread.
- OS 70 SZ Eng
- New OS 50SX missing gasket and leaking
- 91 FX quits
- Fs 61
- 50 SX Running Problem
- Os 91 Fx
- 50 exhaust baffle
- Os Fp 40 Max?
- OS91 4-Stroke Question
- Bad OS #8 plugs--good A3s
- OS 50 SX and Fuel (Oil %)
- OS .46fx muffler....screw broke...need back half of muffler
- OS .91 FX Troubleshooting
- OS 48 Spits fuel out the carb
- 1.60FX Pitts Muffler pressure
- OS .91Fx to Pump or not to Pump
- 1.60FX-FI air valve retention
- Prop Nut
- 15cvr unusual problem
- Static thrust of BGX-1
- After run oil on a 46FX
- OS 91 VR-DF Small Head
- Suggestion: We Need A Os160fx Rear Exhuast For Pattern
- Stuck OS 46 FS Muffler
- OS 46 FX problems?
- OS Engine Trouble ( .15 CV-R) Help!!!
- OS Pump?
- OS 70 Heli engine
- OS gas engines?
- Fuels F.A.Q.
- Rethinking remote needle valves?
- O.S 1.60FX and nitro %
- 61 FX Bearings
- O.s. .52 Surpass Heli Engine...
- 15cvr trouble
- torque vs horsepower vs RPM
- Service & Repair $$$$
- Os160 Rear Exhuast
- FT-160 Carburetor
- os160fx BACKPLATE ALIGNMENT
- Os 46fx
- after market mufflers
- OS46 break-In discrepancies
- OS 46 FX, no full throttle
- How to set your high speed needle for optimum in flight performance
- Os70
- What is the evolution of OS 4 strokes?
- 1.60fx , muffler ?
- selecting 3- adn 4- bladed props
- Info on the OS EFI engines
- History of OS engines....
- Old OS Max .10
- OS FX 1.60 -- Overly Sensitive to Lean Runs ???
- 91fx