Posted on 19th Jan 2018
● FULL 153CC DOME PISTON, INJECTOR, CYLINDER & CYLINDER HEAD KIT (58MMM / 13MM PIN)
(FOR SH125i & LED ● PCX125 (ALL) ● CLICK/VARIO125 & LED ● AIR BLADE125 & LED)
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● Many people have contacted Yuminashi in the past with the request to make a budget friendly plug&play 153cc kit, with 13mm piston pin, to be installed on a 125cc engine.
The reason why people are contacting Yuminashi for this is because Honda didn't supply the SH150i / SH150i LED, PCX150 / PCX150 LED, VARIO150 and the new 2018 DIGITAL PCX150 in every country around the world.
Most countries in the world have actually only the 125cc models from these scooters available.
Some countries such as Vietnam have both, the SH125i and the SH150i available, and the PCX125 and PCX150, but the price difference between the 125cc and the 150cc makes the 150cc version out of the reach for most customers.
The fact that Honda installed a 150cc camshaft in every 125cc scooter makes things really easy to upgrade a 125cc to a 150cc.
All Honda's 150's which are produced since 2014 until today, have a 57.5mm bore and a 57.9mm stroke, which means 150.27cc.
With now this amazing Yuminashi full 58mm Dome Piston & Cylinder Kit being available, we give you more then just a upgrade to 153cc for your 125cc.
We supply you a full 153cc kit with 13mm piston pin to be installed on your original 125cc crankshaft, and the kit comes with the correct injector in the box.
This kit comes with the dome piston, and this means that your 125 scooter will be faster then any original SH150i / PCX150 or VARIO150 ever will be!
The set comes also with the Yuminashi double progressive valve springs, and the lighter then stock retainers, which makes again a gain in horsepower and RPM's.
With this kit Yuminashi have tried very hard to make this truly amazing 58mm dome piston, cylinder and cylinder head kit as budget friendly as possible, and to give a positive reply to the request of our customers for a budget friendly solution.
With the dome piston installed the higher compression will make a better burn, which makes this kit also fuel economical.
We hope this kit might be the answer on your search for a powerful and reliable upgrade to 153cc.
One thing is sure, if you install this kit you will enjoy it for many years to come!...
● The big valve STD150-Head comes with the 28mm/23mm valves installed. This larger cylinder head replace your original 27mm/22mm Honda cylinder head to make the install of the 58mm high compression dome piston possible.
● The 153cc, 58mm cylinder is included in this kit. The bore from this cylinder is 0.5mm larger compared to any new original 150cc produced after 2014, which is PCX150 LED, PCX150 DIGITAL, VARIO150 and SH150I LED!...
● The 153cc, 58mm dome piston in this kit will make sure your engine will produce more power compared to any new original PCX150 LED, VARIO150 or SH150I LED!...
● The double progressive valve springs come with the kit to replace your original single valve springs.
Many people are not aware of the fact that the original 125cc and 150cc valve springs start to float before the RPM limiter kicks in.
With installing these double progressive valve springs, and lighter then original retainers (which comes with the set) we saw on the Dyno a increase in horsepower and RPM's.
● The larger piston will suck in much more air compared to your original 125cc piston.
The larger KEIHIN H-Type fuel injector in the kit ensures the right balance between fuel and air without an electronic device.
● The 58mm copper gasket set ensures the perfect seal in combination with the high-compression dome piston in the kit.
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All prices are in THB