Honda Pcx 150 yuminashi upgraded head for 150 engines
Moderator: Modsquad
- Mel46
- Forum Benefactor
- Posts: 6964
- Joined: Tue Nov 13, 2012 5:13 pm
- Year: 2013
- Color: red PCX
- Location: Dallas, Ga USA
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
When I went to the link it said that the item was not available yet.
Currently own:
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
- vamootsman
- Forum Benefactor
- Posts: 276
- Joined: Sat May 10, 2014 10:42 pm
- Year: 2013
- Color: Red
- Location: Bettendorf, Iowa
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
That Is exactly what I've been looking/hoping for. I think with that, a silent sport exhaust, and a K&N intake, I'll have what I'm looking for; close to 300cc performance in a lightweight scoot. That's exciting
2013 PCX 150 with,
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
- vamootsman
- Forum Benefactor
- Posts: 276
- Joined: Sat May 10, 2014 10:42 pm
- Year: 2013
- Color: Red
- Location: Bettendorf, Iowa
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Will it work in the 2013?
2013 PCX 150 with,
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
so now it was designed for us who dont want the bigger jug but is that a posibility or would that be too much
DISOBEDIENCE CREW
- vamootsman
- Forum Benefactor
- Posts: 276
- Joined: Sat May 10, 2014 10:42 pm
- Year: 2013
- Color: Red
- Location: Bettendorf, Iowa
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Huh?mikelx5 wrote:so now it was designed for us who dont want the bigger jug but is that a posibility or would that be too much
2013 PCX 150 with,
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
larger cylinder its an old dirtbike term
DISOBEDIENCE CREW
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
It's designed for tight wads who don't want to spend any money but like to get more power cheapest way. Adding 175cc barrel would definitely make it move much more rapidly...either way, stock 150 head is the weak point in tuning those engines hence redesigned head was made.mikelx5 wrote:so now it was designed for us who dont want the bigger jug but is that a posibility or would that be too much
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Will it work with the 175cc cylinder? I am thinking about which way to go, 175cc, 190cc, or just this head kit. Performance and proven reliability are equally important. I like the mini-ducati sound of the big bore kit, so I think I have to move to the bigger size engine.
This head kit seems was designed for high revving, with the higher compression ratio, isn't it?
This head kit seems was designed for high revving, with the higher compression ratio, isn't it?
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Double up post
Last edited by Pcxdemon on Tue Jun 24, 2014 3:36 am, edited 2 times in total.
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Best is to email Yuminashi for advice, they're only more than happy to help out with unbiased advice, from my experience,they never tried and at times even advised from wasting money on some things as it would be of little or no benefit to my ideas..Reaper wrote:Will it work with the 175cc cylinder? I am thinking about which way to go, 175cc, 190cc, or just this head kit. Performance and proven reliability are equally important. I like the mini-ducati sound of the big bore kit, so I think I have to move to the bigger size engine.
This head kit seems was designed for high revving, with the higher compression ratio, isn't it?
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Is Yuminashi a Thailand brand? Made in Thailand? The word itself says that it is a japanese one, but I guess it is not!
I saw somewhere that their parts are not top-quality ones, they say yuminashi parts came with imperfections there and there.
But performance-wize, they work more aggresively than a Takegawa, are they?
I saw somewhere that their parts are not top-quality ones, they say yuminashi parts came with imperfections there and there.
But performance-wize, they work more aggresively than a Takegawa, are they?
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
I was riding motocross for some years, and I know that high-powered 250cc 4-stroke engines needs a rebuild every season, and the piston have to be changed after the each race because of the forced engine geometry, piston diameter, long stroke etc.. ! (as manual says). Usually the piston itself breaks the cylinder wall at the upper dead point.
So the seeking for maximum power in PCX may play an agry joke with the owner. I'd like to stay safe but have some noticable improvements.
Hmm..
So the seeking for maximum power in PCX may play an agry joke with the owner. I'd like to stay safe but have some noticable improvements.
Hmm..
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Well,time will tell. Right now, high power she is,an angry beast unleashed from its cage more like it...Reaper wrote:I was riding motocross for some years, and I know that high-powered 250cc 4-stroke engines needs a rebuild every season, and the piston have to be changed after the each race because of the forced engine geometry, piston diameter, long stroke etc.. ! (as manual says). Usually the piston itself breaks the cylinder wall at the upper dead point.
So the seeking for maximum power in PCX may play an agry joke with the owner. I'd like to stay safe but have some noticable improvements.
Hmm..
I don't race mine but I do give a bit here and there,so I don't think I'm stressing it that much. It's really nice to have all that extra power,popping wheelies just of throttle and being able to overtake at 65mph+ with great urgency like a mini sports bike...It's simply the fastest 160cc scooter bar none and quicker then some 300's..
- vamootsman
- Forum Benefactor
- Posts: 276
- Joined: Sat May 10, 2014 10:42 pm
- Year: 2013
- Color: Red
- Location: Bettendorf, Iowa
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
Ok got it.mikelx5 wrote:larger cylinder its an old dirtbike term
2013 PCX 150 with,
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
- vamootsman
- Forum Benefactor
- Posts: 276
- Joined: Sat May 10, 2014 10:42 pm
- Year: 2013
- Color: Red
- Location: Bettendorf, Iowa
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
It's available now. Will it work in the 2013? I'll give it a whirl if it will?
2013 PCX 150 with,
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
vamootsman wrote:It's available now. Will it work in the 2013? I'll give it a whirl if it will?

Previous - 1986 Honda Elite 250, 2007 Ninja 500r, 2013 Honda PCX-150
Current - 2015 Honda CBR650F
Current - 2015 Honda CBR650F

- vamootsman
- Forum Benefactor
- Posts: 276
- Joined: Sat May 10, 2014 10:42 pm
- Year: 2013
- Color: Red
- Location: Bettendorf, Iowa
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
What's the difference between V1 and V2 engines? Sorry for the dumb question, I just don't want to blow a bunch of money for something that isn't compatible.
2013 PCX 150 with,
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Givi Tall Screen, and E370 Top Case
NCY Variator and Face Plate, 12 gram rollers
Takagawa Silent Oval Exhaust, K&N R1100 pod filter mod
YSS XL Rear Shock Absorbers Michelin City Grip 120/70 Front 140/70 Rear
2013 Honda CB500X with Rally Raid kit
2005 Piaggio X9 500 Evolution
1982 Honda CX500 Turbo
1983 Honda Nighthawk S
Re: Honda Pcx 150 yuminashi upgraded head for 150 engines
V1- first gen 125cc Pcxvamootsman wrote:What's the difference between V1 and V2 engines? Sorry for the dumb question, I just don't want to blow a bunch of money for something that isn't compatible.
V2- 125-150cc 'ESP' Pcx