- New Irvine 53 leaks at front bearing-will this affect tuning?
- OS 30 wankel problems.
- Iron Bay regulator blowing bubbles!??
- Calling Enya 155r Owners
- Magnet size of Top Flite magnetic balancer
- Best 4-strokes
- Super Custom .80 Won't run...no sign of life at all!
- Can a Webra 91 be made to turn 20k rpm?
- Modifying aluminium manifold
- Saito 91 FA needle turns?
- Have you read about engines "MA" 05?
- need Enya Carb Screw.
- Can some one share is experience with the MVVS-91 2 cycle
- Saito 1.50 knock during idle
- Saito 180 Muffler
- Where should the engine cutoff?
- re: compression and nitro
- Size of fuel tank for .91FX
- Running problems with irvine 61.
- 140 DZ Fuel Set up
- Question-
- OS .70 ultimate...
- Any good alternative to OS.15CV-A ?
- HELP!HELP! need timing info on 4 stroke asap
- RPM limits?
- How, or what could I use to make a gasket for the "backplate" of my OS 40 LA??
- moki 2.10 needle settings
- Any OS50SX Experts out there?
- YS Model numbers??
- OS .46 FX...baseline Needle settting??
- My first MVVS (.40 GFS/R). Tips??
- Using RTV for Gaskets
- test stand?
- 25 FX vs 25 FP
- Starting glow engines.
- Irvine .46 mkIII
- 4Stroke lube
- Carb trouble on an old engine
- Heli Engine in Plane?
- Wanted: Engine gasket set for Super Tigre 61
- OS 10FP liner and piston
- Best way to run in a Saito 72?
- K&B Twist 61
- Data: TT Pro 46 Stock Muffler Mousse Can and Tuned Pipe. Please add your Info!
- Tower and GMS engines
- Need throttle arm for OS .40 FP
- Plane shopping for engine!!!
- OS 120 surpass w/pump conversion
- Magnum XL 180 AR question
- Saito 1.82 experience
- OS.15CV-A : what is its liner made of ? ABN ?
- which one do i use?????
- Does a Saito 100 need Synthetic?
- webra speed .25 GT
- Perry type pumps/regulators?
- New OS46FXi
- Pitts muffler for an OS 120 III w/pump
- Difference OS 25FX and OS MAX 25F SR
- what is a good fuel blend for breaking in TT 61
- MVVS 15 GFS/R - ABC
- what is good break in fuel mixture???
- Why won't my new Jett .50 run?
- 4 stroke assembling
- fuel tank question
- Engine performance database
- Irvine 1.50
- Thunder Tiger 46 engine Break in
- ST 3000 selling price?
- 4 STROKE PLUG IN 2 STROKE
- Replacement Piston and Cylinder for the OS Max 25 FSR
- Wanted/46 Pro Parts
- OS 91 FX Dual glow Plug Head.
- Norvel bubbly noise at WOT?
- Most Wanted OS Engines DESIGN Improvement
- 4 Stroke
- MDS 1.48 muffler?
- GS-40 won't run...
- Which Engine for a Sig Tri Star
- Magnum Engines?
- Y.S. 110FZ after Break in -Muffler discolored
- Saito 100 reassembly
- Magnum fs30
- Received my new RCV58CD Today?
- Who Carries MDS 40 Piston/sleeve setups??
- Where can you get a new Needle for OS 46 FX?
- Smoke system question
- The illusion of "reason"
- what size pressure tap for medium fuel tubing
- Saitos on 10% nitro
- Help! Engine Tuning (120 Satio 4 stroke)
- Only 7000 rpm's on Saito 100 ??
- Saito 200 inline twin help??
- Magnum 91xls, 2 stk, what plug?
- irvine shakeup rumor
- MDS 148 AND OMEGA FUEL
- Which one??
- Inflight mixture control slaved to throttle (real time mixture control)
- OS 91 FS Fuel Consumption
- APC 17x12 for os160?
- WOW!!! that's HOT!!!
- Unidentified motors
- OS 48 Surpass Specs.
- ASP engines in the US??
- Starting Saito FA 91
- Engine/Prop Question
- New engine revcounter software for Windows
- Need Enya 80-4 parts
- Dynathrust or Master Airscrew ?
- OS .61 FS Carb???
- Repairing Crankcase and rear plate?????
- Magnum or OS
- Saito 180 and Dynathrust combo.
- Prop Size for Y.S. 91 fz
- Megatech .15BB ABC R/C ENGINE
- Fox 5% Nitro ?
- Saito 1.80 vs 1.82 twin... Which one?
- Need a pic please
- OS 74 Carb?????
- Weirdest SUPER TIGRE G90 Problem
- Irvine .25 - Correct Specs
- Is there a prop nut for big engines?
- Anyone got a 91fx with Ultrathrust muffler and Perry pump
- what is a good 3d prop for the magnum 90 2 stroke engine?
- OS 70 Ultimate field report
- Prop Question
- Enya .53 Started Today!
- Saito 90 radial vs 170 radial?
- O.S. .25 FX
- K&B 40
- My tuned pipe is effecting my idle!
- I'm Looking for an MDS 40 Piston/Sleeve
- MDS .68 Engine Question
- Modifying mufflers to get adequate back pressure
- OS 120 pumped ??????
- SAITO FACTORY SETTINGS
- Surpass 70 versus Saito 80
- Which sounds the best?
- What .46 to .53 engine / brand
- 2 Stroke engine help
- New O.S 1.20 AX
- Slimline Large Volume Pitts and OS .91FX
- OS .10 Runtime
- Starter for OS160FX?
- OS.91 OS 4S without muffler
- Kraft .61 glow
- 120 2 stroke or 120 4stroke whats the difference
- antifreeze cleaning
- Fuel for ST4500
- saito 120 low speed adjustment-help
- OS-FS-40 For What Size Plane?
- GMS .47 Running Problem?
- Saito "Make-Over" O'Haul *Updated with Video!
- os 120fs E
- Y.S FZ110 Four Stroke Idle Needle adjust
- Saito Air Filter...
- Saito .91 noisy
- 91 size common problem as result of engine companies competition ??
- TT 46 Pro Parts Needed
- 4* 60 which engine?
- Prop for Saito 40
- Saito 65 and 72
- Spinner for a Saito FA56/72?
- Stripped Exhaust Port thread
- Replace con rod on OS21 buggy motor
- megatech m46 .46 any good?
- Saito FA-300TTDP
- Slimline Mufflers
- Enya 155r crankcase tap?
- Saito FA-60T or FA-90TS in my CUB?
- irvine15XR
- OS .25 FX
- Supertigre in Avistar
- OS SURPASS II 120 pumped ?
- Need age range and performance of OS 120
- Magnum XL 46 carb help needed
- Installing exhaust on YS63
- MVVS 28,TT pro36 or GMS 32?
- GMS .47
- Fox .15BB Questions
- Fox Eagle IV
- Glow Plugs
- Tuned Pipe Tuning procedure
- Help with Irvine .53 glow engine . . .
- We are building an engine and need some help!
- New YS 63S
- fuel line problem
- Saito 91 Low end knock?
- engine to fuel tank query!!
- pressure fitting for slimline pitts on os108
- I broke in my YS 63 tonight....nice engine
- mach 15 non ps
- 4 stroke engine
- exhaust problem
- OS 25FX or Irvine 25?
- propeller suggestions for OS 70 ultimate
- 46 Evolution prop size
- changing the carb location on a DF engine
- 3-Blade prop
- Where to buy Thunder Tiger parts?
- Saito .72s Golden Knight
- 8oz MCP on a 60?
- O.S. 70 Ultimate versus SAITO 72GT
- Will switching Nitro % hurt engine?
- Using the OS 91 in the TF Spitfire?
- FS-91 Surpass II w/Pump Problem
- thrust bearing split on asp .32
- prop shaft slack
- NOS OS 1.20 curiosity...dirty engine
- engine won't quit!?
- Help..need info..
- Proper break in for a new Super Tigre G-61
- rossi/shoestring
- SAito 180 help!!
- OS blue engines
- YOKOMO RX-18 ENGINE
- Thunder Tiger PRO 120RP (rear exhaust)
- Old K&B and HB .61 mufflers, will they fit anything else?
- Magnum 61 RFX Rpm's drop
- New YS 63S??
- DIY Onboard Glow Help Please
- Zenoah G23 Glow
- Best 4 stroke for my Ultrastick 40
- Ok to break in YS63 with Omega 15% ?
- Twin Cylinder Engines?
- Engine idle problems
- satio 56 vs os fx 46?
- Satio 91 problem?
- Let's all WRAP UP the OS .91FX issues!!
- Y.S. Four Stroke 110 FZ Break in question
- OS 140FI. How do I reset EC1
- 4 stroke for Great Planes Extra 300S, 60 size
- Help finding web site for prop.selection
- ASP/Magnum 1.08 the right prop size for it??
- minimum # of fuel lines into a bubbleless bladder..?
- Con-rod
- Webra Speed 1.20 Gooseneck header, anyone know where to get?
- What Kind Of Output Does a Speed Webra 61 Rear Intake Put Out??
- 52 surpass versus 56 saito
- 4 STROKE QUESTIONS
- Help with Super Tigre 90
- Saito 180 3 blade prop size
- Saito 180 questions kindly help?
- 4 stroke
- SuperTigre fuel nipples -
- Graupner Wankel
- "T" Connectors
- Prop recomendations for OS 91 Surpass
- Enya 1.20
- Webra dynamix carb.?
- OS 91 2 stroke