- OS .52 4-stroke vs Magnum .52 4-stroke
- NIB motor HOW CLEAN..2 stroke
- OS 1.60 - Cline regulator - first start problems
- OS .61FX Fuel Consumption
- OPS motor experiences...Anyone?
- Ryobi .33/ Aeromaster
- Cutting down Props
- Mvvs .49
- Can I save it?
- Racin Super Tigre 40's
- Quadra 50
- Environmental Issues 2s vs. 4 St engines
- Saito 100 vs OS 91 II vs YS 91
- New Saito 91 oil leak
- saito .65 in the cold!!!!
- Anybody Heard of SC46 ?
- Olson 23 Information
- weedwacker conversion
- Help me Decide on New engine
- Webra 10cc gray head
- Any 70s or 80s R/C boaters here? Gas boat tranny questions:
- Crank Pin / Con Rod Clearance
- another question for w8ye, or ed
- Cox Engines
- Bolly Props
- os max .21fsr-m-abc need tips
- Black Finish on Saito GK?
- OFNA engines
- Ever hear of HS engine?
- Non-RC Engine
- puzzling OS mixture
- tuned exhaust
- Signs to replace a Glow Plug
- Winter storage
- running 4-stroke without nitro
- Ringed vs non ringed
- 3D prop for YS91AC
- Irvine 53 low needle setting??
- Irvine same mount. dimensions as 46 SF/FX??
- G-23 & 4*60?
- YS 140DZ question
- Bearing replacement / Setup - Saito 150
- Magnum 1.20 fx prop
- Glow to gas conversion.
- Where do you send a Saito for service in Canada
- Thunder Tiger .61 Pro
- Engine collector question about Ueda 61.
- ys fz91
- Engine to tank distance....how far.
- Only unhappy Saito 100 owner?
- Sport Muffler for Moki 2.10
- Glow engine and Walbro carbs??
- Mufflers
- WEBRA 30FH, Loss of Power
- Laser 150
- os Surpass 1.20 with striped exhaust threads
- Non- throttle control Engine?
- Idle issue
- fuji bt50 sa
- ops 60
- Bolly 3-Blade on Saito 56?
- Irvine 53 first "flick" after 4 months!
- Where do send my Magnum for repair?
- Fox .40
- New Enya owner
- MDS 1.48 vs Mds 2.18
- Engine Terminology
- Magnum XL cough
- What size prop to break-in new Saito 91?
- Magnum 52 FS -- Remove Head?
- fuel efficient little diesel (.033 to .09) ?
- K&B engine...confused
- 2 stroke fuel mileage
- Webra .61 black head/ parts, N.O.S.
- gp ucd saito 100
- tuned pipe pressure tap
- Need OS .91 FSII Disassembly Help
- Four strokes and nitro
- New Thread
- Saito 100
- Enya 60x 7101 parts ??
- OS 40-H ????
- khb quick-fit
- Engine Recommendation Requested
- OS90 SIG 1/4 Cub Which engine now..
- Os 60 Re-abc-p
- Royal 45
- Magnum 180
- Enigine Identification?
- Lazer 150 ???
- G-62 problems
- Hpi 12r Ss
- crank vent ???
- r/ex f/intake VS s/ex f/intake??
- ZDZ 40 on DP Ultimate?
- SET UP O.S. 70 four stroke
- mvvs 49
- pegasus 240
- TT91 Wont Run
- tower hobbie engines
- Saito 120S Qs
- Saito 180 in midwest superstinker (enough)?
- Davis Diesel - Worth the Trouble?
- MACS One Piece on 46FX
- OS61fx Muffler
- ? SET UP Perry pump with O.S. 70 Four stroke
- Lighter 50 Size
- A&M Aircraft, ever heard of them? Sachs 5.8
- Irvine won't shut down
- O.S. FS-91 ll Surpass w/Pump
- Why not invert?
- YS61 tank size
- ? SET UP Perry pump with O.S. 70 Four stroke
- Irvine 53 Mark III and tuned pipe
- Runs lousy...
- Fox 40
- Alternative Muffler / Pipes for Saito 1.80 ?
- Saito 50 - How is the power?
- Traxxas 4-Tec vs. OS Max
- magnum pro 45
- Can anyone identify this engine?
- Tuned pipe for a TT46 Pro?
- Atmospheric effects on low and high ends
- Why would I go for a 140DZ over 160FX
- Fuel pumps for multi-cylinder 4-Strokes
- 12.25*3.74 prop on os 52 or saito 56?
- they look so much.................alike...odd
- Magnum XL120 VS OS Surpass 120
- Starter Insert
- Throttle Stop Screw Irvine.53
- Supertigre .90
- glow plug
- Lost Compression on my FS engine!
- Saito 100 Loose Carburetor
- GMS 120 thoughts?
- Hobbico Muff. $13 ??
- Engine Problem Please Help
- do I need new bearings??
- 2 stroke tunning
- super tigre ????
- Inverted 4CYL is it still a myth?
- Magnum 52 Four stroke idle problem
- Aresti 40/Irvine 53 Question
- long exaust pipes on engines
- Saito 72
- Who has best price on Thunder Tiger now that National Hobby is closed
- OS 4 Stroke Cam Timming ?
- Magnum XLS 40
- converting gas to glow
- OS 46 LA painting
- Great Planes PT-40 trainer and 4-stroke engine
- OS electronic fuel injection
- Why don't you guys recommend 4-strokes to beginners?
- Engine cleaning ... black residue on internals??
- Thunder tiger pro 36
- 28cc Weed wacker engine ????????
- K&b 61
- Ys 140dz
- OS46FX needle valve bubble
- Where's the best price for MDS engines?
- 4-Stroke Engines
- COX 0.049 wont run straight
- clarification
- Os&saito Four Stroke
- Tower hobbies engines
- Tower Hobby engines
- Fsr ????
- ys91fz quits only when pulling neg g's
- What engine to swing 18*6 prop?
- Perry Oscillating Pump...any good?
- My 4 stroke Threw Up!
- Help - Irvine .53 does not stop?
- Powder Coating
- 90 Degree Muffler Adapter for OS 46fx?
- 4stroke(pump or not to pump)
- Motor help!
- Does the Hanno II head fit the Hanno I?
- St .60 Abc
- What's so great about a 4-stroke?
- shaft extension
- pulling the front bearing on an older k&b 40
- Mds .68
- Prop for Saito 100
- 160FX Fuel Tank Size Help
- Os 50sx
- TT Pro-46 questions
- need to buy a .46 enigine but which one?
- Enya 60x
- Old Rossi .46 questions
- G-23 can using a different muffler help for power
- OS45FSR Stripped Head Screw
- OS 70 Surpass Timing Mark
- source for genereic bearings
- OS 50 SX bolt pattern VS OS 46 SF bolt pattern
- OS 30 four banger?
- YS 63 - Air in fuel lines... I'm stumped!
- Rust on muffler bolt (What caused?)
- Muffler for 80 4c
- 46FX comparison
- Rcv 1.20
- YS .60 AR - How much is it worth?
- TT Pro .61 Problem that Nobody Can Solve!
- Help with a Saito 150
- Mousse Cans ???
- Magnum Xl 1.20ar 2nd Generation
- OS 50SX how much thrust ?
- .91 FX bogging, not running smooth
- Moki 2.10 Why?
- Tower Hobbies 75
- enya 180
- Clarence Lee where are you??
- breaking in an engine
- Need Advice on YS 1.20 SC
- OS 32 SX Detonation/Rattling?
- Problems caused by overpropping a 4-stroke
- Mds 218
- Need Info about a ROSS RC-61 NOT A ROSSI
- Steps for starting an engine? (in detail)
- Idle Adjustment Identification
- Engine Thrusts
- ATTN saito FA 90 twin owners
- Excess Fuel Flow
- Radial Cowl venting for an OS.91 FX
- carb prob?
- Great Planes tank ok for YS engine?
- Flat spin deadsticks!
- YS 110 pricing, power, and weight
- TT Pro 46 or 61 on Sig Kadet Senior ARF
- tower 40
- Mds .68
- Os 32 Sx Aac Piston ??
- Largest prop for a 91 four stroke
- Bearings in engines: Does ABEC matter?
- Anyone running a YS 45 with stock muffler upside down?
- Exhaust Deflector on UltraThrust.
- TT Pro .46 Longevity?
- Os Max .91 Fsr
- O & R question .... Help !
- Are there any mods for the older 3W120B2?
- 3W Cactus Aviation Support
- Formulars or meassurements of rpm vs. power for any 2 stroke or 4 stroke engine?
- Vibration on 40LA
- Wow, what a mess
- OS Max FP .40 question
- Reamer size for a Saito 150
- Manifold Question
- Gasket-OS 52 Surpass 4-stroke
- Thunder Tiger GP-15 Help
- Need help with my Irvine .53
- saito 72 aluminum spinner