Brand New 1200RPM spring include 1x torque spring / big spring 1200rpm length : 80mm outer diameter:53mm this spec for 2003 Yamaha 50cc engine for stock engine or fast road is a good tuning parts
will for China made 1E40QMB & 1PE40QMB engine (there are 2 size of the big spring length 100mm & 80mm,check your spring length before you buy it.)
Yamaha:
Neos/Why/Zest/Jog-R/Jog-RR/Vino 50cc(2 stroke) JOG CV 50cc
Aprilia Aprilia Amico 51 50 / Aprilia Guliver 50 LC Aprilia Rally 50 LC / Aprilia Sonic GP Aprilia Area 51 (1998~2003) / Aprilia SR 50 LC ( 1994 - 2000) / SR 50 AC (1994~2000) Aprilia SR 50 Netscaper / Aprilia SR 50 Racing( up to 2000 Minarelli engine ) Aprilia SR 50 Stealth All Luquid Cooled / Air Cooled Models upto 2000
(USING MINARELLI HORIZONTAL
Benelli
Benelli 491 ( Minarelli type engine )
Benelli K2 NAMUR LC
Benelli K2 50 LC
Benelli PEPE
Beta
Beta Ark 50 LC / Beta Eikon 50
Beta Ark LC / Chrono / Tempo / Quadra
MBK
MBK Mach / Mach G 50 LC-AC
MBK Ovetto / MBK Nitro 50 LC
MALAGUTI Ciak / F10 Jetline / F12 Phantom / Yesterday FOGGY REPLICA / SCORCHA YR F12 PHANTOM LC - F15 FIREFOX ITALJET DRAGSTER 50 ALL MODELS
All 50cc Yamaha/Minarelli type liquid cooled-Air Cooled engine horizontal cylinder with the carburetor fitted to reed valve unit on the engine casing easy install / just bolt on Premium Quality and direct ship from Taiwan Ship to worldwide!!!!!
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