Eton 633140 Polaris Adly E-ton 90cc 2 Stroke Upgrade To New 100cc Big Bore Kit!! on 2040-motos

Most 90cc ATV engines are actually 83cc
NOW you can have 98cc "100cc"
You will FEEL THE POWER' WHEN YOU ADD 15cc MORE OVER FACTORY 83cc
Many customers have said "I WISH I HAD DONE THIS SOONER"
Change your 83cc "90cc" 2 stroke Polaris Sportsman or Scrambler or Predator or e-ton 90cc 2 cycle ATV upper end to 100cc and have a like new engine only better.
Parts 814539 633140 & 633141 are the cylinder & piston kit & CYLINDER HEAD
54mm 100cc ATV
Included is a #90 main jet (for carburetor to supply increased fuel demand)
as factory jet is a #80 or #85
Fits Most 2 Stk Taiwan Youth ATVs
with 54 Bore
Max 54mm (100cc)
Good news! confirmed that THIS is the 77mm. We don't sell the 78.5mm.
here are our specs:
CYLINDER PISTON KIT
HIGH PERFORMANCE-100cc 2 Stroke
B=54mm Pin=12mm H=77mm
Fits Many Taiwanese Youth ATVs
Fits Eton 90/90R, Adly, Polaris 90+ More
+++ plus package bonus includes needle bearing 633222 and exhaust donut gasket 633209 and NGK spark plug BPR7HS 632873
to build or rebuild your 2 stroke 90cc upper
end as a big bore high performance 100cc
For Polaris 2 stroke 90cc atvs such as Scrambler Predator and Sportsman
And the following e-ton models:
Viper 90 2stk (RXL-90) (Vin: 9EE)
Viper 90R 2stk (RXL-90R) (Vin: 9EF)
Sierra DXL-90 & DXL-90U (Vin: 9FA, 9FB)
Impuls TXL-90 (TXL-90) (Vin: 9EA)
Thunder-90 AXL-90/NXL-90 (Vin:9EB,9EC/9ED)
And many other Taiwanese & Chinese ATVs
Minarelli Type QJ,Jog,Adly,Keeway,Vento,Dinli