Yuminashi mods

Drivetrain upgrades, engine upgrades, or any other mods to gain speed or acceleration.

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Pgill
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Yuminashi mods

Post by Pgill »

Hi
Back in Febuary, I converted my wife's Pcx to 164cc, using Yuninashi pieces from RZ Racing in Holland, after removing the engine, quite straight forward, I replaced the barrel, piston, cam, fuel injector, valve springs, and the variator, and a K&N filter, I stopped short of replacing the throttle body and exhaust.
What a marked difference, managed an indicated 80 mph rock steady!
Now have to run with the idle switch off, as the new cam does not have the decompression cam on it, it does not start instantly,
Spent about £550, well worth it!!! :D
Paul.
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dasshreddar
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Re: Yuminashi mods

Post by dasshreddar »

welcome, 8) awesome... any pics?

I assume your in the UK with a 125 non esp?
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Alibally
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Re: Yuminashi mods

Post by Alibally »

Mmmm. Valve springs......
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Pgill
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Re: Yuminashi mods

Post by Pgill »

Hi
Yep a non ESP, the quality of the Yuminashi is of a high standard, everything fitted well, while the head was off I took the opertunity to polish the inlet & exhaust ports, may only give a whif of an extra horse, but I enjoyed doing it!
Paul
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you you
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Re: Yuminashi mods

Post by you you »

Pgill wrote:Hi
Yep a non ESP, the quality of the Yuminashi is of a high standard, everything fitted well, while the head was off I took the opertunity to polish the inlet & exhaust ports, may only give a whif of an extra horse, but I enjoyed doing it!
Paul

I only smooth inlets and but polish exhaust ports
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Pgill
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Re: Yuminashi mods

Post by Pgill »

Hi
Yes am in the UK, Caerphilly, S Wales
Paul
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iceman
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Re: Yuminashi mods

Post by iceman »

I'm impressed by the knowledge and mechanical skill of all those that attempt such things. So far I've checked the oil once :)
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Pcxdemon
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Re: Yuminashi mods

Post by Pcxdemon »

Pgill wrote:Hi
Back in Febuary, I converted my wife's Pcx to 164cc, using Yuninashi pieces from RZ Racing in Holland, after removing the engine, quite straight forward, I replaced the barrel, piston, cam, fuel injector, valve springs, and the variator, and a K&N filter, I stopped short of replacing the throttle body and exhaust.
What a marked difference, managed an indicated 80 mph rock steady!
Now have to run with the idle switch off, as the new cam does not have the decompression cam on it, it does not start instantly,
Spent about £550, well worth it!!! :D
Paul.
How is this still going?
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