- Enya.25X
- OS 70 Surpass
- Need help with my K&B 61
- Cleaning gas off plane
- Measured drawing for Saito 100?
- New OS 50 missing O ring and leaks air
- YS63 check valve
- Ancient Saito 120 Refurbishment
- YS-45 parts and service?
- should they be run or saved?
- Saito 120 S Carburetor
- Seeking info from experienced twin flyers
- Hello Jeff!
- OS 91FX Ring and ABC
- Converting a weed eater engine
- Irvine 1.50 questions
- Saito 100 vs. OS91 FS
- Hows the new Magnum 46xls?
- 25 fx only starts cold
- Stalling MDS .40
- how to put an air-filter (the engine is a TT GP 25
- webra 1.45AR
- Pitts Style Muffler for Jett .50
- best prop for tower 46
- Welcome Enya Engines to Engine Direct Support forum at RCU
- Fuel for my Irvine .53 and TT .53 4 stroke
- Exhaust Gasket?
- YS 120 upgrade or just fix
- Thunder Tiger 61 Idle Problem
- What Size Spinner (Dumb Question) :)
- My Ys 63 Is Driving Me Crazy!!!!
- XXXNT RTR Engine Problem! Help!!!
- # For U.a.v. Engines
- OS .91 FX Engine Problems?
- Ryobi 4cycle conversion?
- Cline regulator and remote needle valve
- 2 stroke inverted?
- NEW Saito 182t Help please
- YS 63 from central Hobbies
- Norvel glow plug problem
- Carb Barrel Tight!
- Old OS 50
- mounting a Saito 72
- os 52 fs surging please help
- Light Muffler for 46FX
- Gms 32
- MDS 58 vs OS 50SX?
- Ys 63
- Anyone here run a YS .45 2 stroke?
- Correct break in for YS 140 L
- Cowled YS .63?
- MDS 1.48 How much does it weigh?
- OS 91 Surpass II....HELP PLEASE!!
- Magnum .36 vs TT pro .36
- What type of engine......?
- o.s. i.20 gemini Help!Help!
- Possible Damage
- Best Prop for YS 63?
- First 4 stroke ...
- Sizing a tuned pipe
- Best speed prop. for Irvine .53?
- Engine Size
- Prop hole size for Thunder Tiger GP15?
- engine choice
- Can you over-rev in a dive?
- What to check n MDS 28
- Need help with YS .61-R
- nelson engine
- Compression (non important matter)
- Looking for muffler for old OS .50
- Magnum 91 2 Stroke, How much thrust
- motor size
- how to tell if u are running too lean
- Books on 4-strokes
- Irvine 53 Break in
- Ys 53
- Faster wear-out of 4 stroke???
- Webra 1.20 Any Experience with it
- Saito 180 Vs Rcs 140
- MDS 68 leak
- 160 FX Problems
- Tachometer settings on 4-cycle engines
- How Long can those fuel lines be??
- What Makes Best Smoke 2 Or 4 Stroke
- Os 40 FS
- Best prop for Saito 72?
- Cline Regulator, do they work?
- TT Pro-36 first flight(s)... Help me with transition!
- Leo 37 & APC 12.75x3.25
- Enya 46 Won't Draw Fuel
- O S Surpass 120 111/wpump or SP
- os160 with tuned pipe
- New OS 91FS exhuast question
- Help on a Royal 46
- Exhaust routing advice... :)
- OS 8 vs. OS A3
- YS 120 Exhaust System
- Irvine 53 with 12..25X3.75 rpm
- 30% fuel and the Saito 72 or YS 63 FZ....
- Engline Selection? (CG SKY Tiger)
- Saito 180 Muffler
- Career Opportunity- Research and Development Technician
- crashed and dirty engine
- GMS 47 vs Tower 46
- power to weight: Electric vs. Gas
- Chinese Super Tigre's
- Muffler Cowl Proximity
- How to properly use a refuel/defuel 'T'
- Magnum .46 cuts out
- Carbon deposits on exhaust valve
- Question regarding the TT Pro-36 carb.
- OS .91 - where to download manual?
- OS1.60 and Zinger 18-8?
- O S 160 with Turbo Jett Muffler
- Irvine 53 with a mousse can
- Os Fx 46
- MDS changed needle taper?
- Irvine 61
- saito physical size comparison
- low speed needle setting on Saito .56
- 4 stroke in a cowl
- Scale engine kits/castings?
- OS .91 Ducted Fan Question
- OS 160 FX Fuel Consumption
- Magnum 1.08 or ASP 1.08, The Same
- webra 40 rebuild
- Which spinner with APC props?
- Moki 2.1 carb. problem
- YS63 Regulator Question
- Engine Mounts For A Manum 1.20 4 stroke
- purple pipe
- In-Line One Way Pressure Valve
- Saito 72 Adjustment
- Prop drill for Moki 1.80???
- YS 63 Keeps Pumping!
- Sticky valve
- Saito 72 crankcase drain gooooo.
- Pressure tap for my jet?
- OS .50 FX questions
- Davis Diesel Conversions
- one thing they won't tell you
- Ever Heard of IMAGE Engines?
- 10 to 15 size engine help needed
- 16.7K RPM for an OS 32sx...Too High? MCP? Diesel?
- long and short glow plugs
- 40 LA porting
- Saito 72 with 14x4
- Magnum GP 65SE HOT!
- A couple of question?
- To pump or not to pump
- Running A 4 Stroke Inverted
- tuning 2 stroke
- K&B Sport .20
- OS 91 Surpass
- OS 40 sputtering
- Saito 91
- Help With My ENYA40ss
- Rjl .61?
- Irvine 53 $$ ?
- Old Magnum 120AR Four Stroke vs. new
- 91 magnum fs backfires at high throttle?
- OS 48 four stroke spits fuel while running
- gms 47 bad midrange - help!
- Increase horsepower 65% for $15 (really)
- good prop size for OS Max .46 FX
- FOUR STROKE Exaust Extention??? ONE OF YOU GUY's KNOW's THE ANSWER
- OS four stroke timing question
- O.S.70 surpass valve settings/ Saito 65 valve settings
- Painting Props
- Magnum 61 4 Stroke for $129
- ST G90 exhaust
- Problem with ST 2000
- Performance on a budget?
- Magnum 40 GP
- YS53FZ running inconsistently.
- Need a 4-Stroke answer please! *Got it!*
- New to 4 strokes
- GMS muffler?
- fuel drainage queston
- Leaky YS 45
- How to make mufler quite
- How do you remove the prop hub on TT 2 strokes?
- Engineering questions-OS 40LA CDI gasser
- Enya 4 strokes/? anyone familiar?
- OS 91 Surpass II
- Air Bubbles
- Magnum 1.08XL Engine
- TT54 prop for a fun fly
- Saito... kick back on start and runs backwards.
- Best "Vertical" prop for OS .61Fx
- OS SF vrs. FX
- glow starter
- Saito 1.00 thread size?
- Novarossi Top 12TT Race S5 5 port turbo
- HELP me!! Magnum valves.
- Do-Bro Prop Nut Question
- Need help with Moki 1.35
- Magnum and TT 2 Strokes ?????
- Magnum engines: opinions wanted...
- Loud Muffler
- Four Stroke Muffler Question...
- Mvvs 77
- unusual 15cvr problem
- O.s.46 Sf
- plowed tower 46
- High-Temp Silicone on .91FX
- Help With an Enya
- Waht motor mount
- Os 46 Fx 3 Bladed Props
- Smallest GAS engine with SMALLEST price
- CMB web
- Smallest GAS engine with SMALLEST price
- Mvvs .49
- AP 09 engine parts...Where???
- Webra Silverline 40 ring
- Irvine 72 weight
- Crank Case Size?
- YS 63, Saito 72, or OS 70?
- 4 Stroke 61 Magnum - Is it worth $129 - your experiences PLEASE
- TT .07 leaking?
- Idle RPM for OS .46FX
- 4-stroke kicking props
- 4 stroke hop-ups?
- Webra .50 piston orientation
- Royal 28 carb parts
- Where can I buy Webra 35 aero
- Did your TT Pro-36 come with a shim?
- OS 61 rfp Pump help
- O.S. 46 Fx W/ Performance Specialties Muffler
- OS .46 FX Starting Problem
- o.s gemini 1.2 twin
- MVVS .49 in a pattern ship ?
- Black, burnt mark on the top of the piston?
- os 120 prop size
- Davis Diesel Developments
- Any Webra experts
- Tower 75 ABC?
- tuned pipe
- Ys 120 Ac
- Finally got some power!
- Thunder Tiger Pro 46 - Dead stick
- OS 1.60 muffler choice
- Muffler Extension question
- YS 2-strokes versus OS 2-strokes?
- Aviastar Engines
- Running an engine inverted.....problem?
- OS motors? Better Check screws!!!!
- OS Engine Trouble Help!!!
- 3 or 4 Blade Prop for a 4 - Stroke (H9 P51)
- what prop