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O.S Gas Engine GT15HZ bakiman 3 93 10-30-2014 07:00 PM
bakiman
My O.S.105 HZ issues... rcnut 13 262 10-30-2014 02:57 PM
don s
YS 60sr was a PIA today! Rob43 9 212 10-30-2014 02:46 AM
EEngineer
Macs muffler for OS 55HZ. jake21 0 19 10-30-2014 01:47 AM
jake21
os105 Hz R and fuel Luis01 5 99 10-30-2014 01:35 AM
Rob43
Magnum Mad pipes. jake21 0 44 10-29-2014 12:32 PM
jake21
Fuel Tubing Question don s 16 187 10-28-2014 11:19 PM
don s
Engine bearings rudyy 2 304 10-28-2014 09:34 PM
Aaron29
50Hyper eats piston ring, fix it or buy new? Cherokeepilot 3 161 10-26-2014 03:41 PM
John Krebs
91srx or 120srx blucido 14 577 10-25-2014 09:47 AM
RussJ
YS120SR-X ( page 1 2 3 4 ... Last page ) mpafonseca 148 6376 10-23-2014 07:00 PM
jonesheli
A question about these new gas engines FenderBean 6 169 10-22-2014 05:59 PM
Four Stroker
YS120 SRX Crankcase Failure jonesheli 10 343 10-22-2014 07:57 AM
jonesheli
YS 120SR-X on 30%. Possible? ticedoff8 5 156 10-20-2014 03:30 AM
Hate_To_Crash
YS 91 SRX Tareq jmiceli11 3 340 10-17-2014 04:26 PM
Knuckledragger
OS ENGINE 91 HZ & 91HZ-R Has Been Discontinued ( page 1 2 ) Helicrazy4 37 916 10-14-2014 08:41 PM
Rob43
OS105HZ-R Muffler PaulBowen 9 360 10-05-2014 04:29 AM
Rob43
Nitro % and RPM don s 11 419 10-03-2014 04:22 AM
Gearhead
Go Engines Papa Sal 14 594 09-27-2014 06:14 PM
fastflyer20
fuel magnet vs OS bubble less clunk BrianApp 17 474 09-25-2014 03:14 AM
utahbob
Whats the top 50 right now Canadian_High 7 382 09-18-2014 07:49 PM
Rob43
OS55 with cy mp5 pipe? JAYHELI 1 139 09-16-2014 05:23 PM
rexxigpilot
Need a 50-60 size fuel tank.... cmsilvoy 1 137 09-14-2014 04:30 AM
Ghia
OS105 Head Shims For 22.5% nitro ? duckmansweb 1 213 09-13-2014 01:51 PM
dchekas
Best muffler/pipe for OS 55HZ cmsilvoy 12 351 09-10-2014 03:05 AM
cmsilvoy
Align 50 pipe michael88997 6 200 09-09-2014 12:27 AM
Gearhead
Is this engine now a paper weight? Harry Spillett 16 556 09-08-2014 09:46 PM
Andy from Sandy
Bottom plate sensor on YS91-SRX rudyy 15 359 09-04-2014 04:45 AM
Glenn Goodlett
HYPER OS 50 epryor 4 249 08-26-2014 01:56 AM
dkshema
YS 80 won't run worth a !@#$ Help! ( page 1 2 3 ) AirCowboy 40 789 08-20-2014 10:18 AM
Mike0251
Thunder Power RC . Mikado . Futaba-RC
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