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US Version PCX: Lack of Idle Stop Feature

Posted: Sun Dec 15, 2013 5:16 pm
by markz
Having never out growing my love of Honda Mini's, I think this PCX model is one trick ride.

A 125cc four stroke, water cooled, fuel injection etc etc is so cool.

Then I found out as an American, my government protected me from the dastardly "idle stop" feature that the ROW enjoys.

Being anarchist at heart, and an engineer by trade, I feel compelled to make Idle Stop work on my PCX.

I recon, obtaining a "non US" ECU would be a great place to start, but I wonder if there are other things to consider.

I ordered a factory manual, and I'm hoping it is covers the international models as well, but I suspect that won't be included in my US ordered manual.

Has anybody on the forum looked at a non US shop manual? Or better yet are there any Honda engineers on the forum? (I had to ask...)



:D

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Sun Dec 15, 2013 5:27 pm
by gn2
Its an interesting question, imo for what you would gain its not really worth it.

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Sun Dec 15, 2013 8:23 pm
by markz
I thought it looked like a great feature...

So in practice do you turn the feature off?

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Sun Dec 15, 2013 8:51 pm
by gn2
No I had it turned on but the fuel savings were absolutely minimal.

Scooter Station did a test...
http://translate.google.com/translate?s ... ml&act=url

1.1 litres per 1000km in US terms is half a gallon per thousand miles and that's in heavy city centre traffic.
Out of town the savings are even less.

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Sun Dec 15, 2013 9:36 pm
by khaosaming
Idle stop mechanism makes sense in a city like Rome or Bangkok, where you have to wait at major intersections and the weather is hot. That said, I must tell you I hardly ever use it. My PCX rides take place here in the sticks and there's really no use for it. This place I call home has only one set of traffic lights, so I don't see the point. It should've been made available to customers in the US, particularly in California, where emissions control has been a hot debate for decades.

Maybe Honda's idle stop (or similar technology) will eventually be made mandatory for all vehicles, unless combustion engines are eradicated in favour of electric powered vehicles first.

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Mon Dec 16, 2013 4:41 am
by bruno_09
markz wrote:I thought it looked like a great feature...

So in practice do you turn the feature off?
Only when I know I'll be taking off a few seconds after stopping. Or if I just filtered and I really need to be off the mark the second the lights turn green.

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Mon Dec 16, 2013 5:46 am
by gn2
The engine starts in three tenths of a second from standby so there's very little to be gained by turning it off.

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Mon Dec 16, 2013 6:00 am
by Cracksta
Mine is always on, the only time I turn it off is if I have a 2nd helmet under the seat and it can stop the feature from working or coming back on.

Helmet now goes in the topbox, why not use the feature if its there :)

But I agree, its no deal breaker and I certainly wouldn't bother wasting time doing it.

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Mon Dec 16, 2013 9:53 am
by markz
Great feed back!

I have more pressing matters with my PCX, with the swing arm bearing seized upon the output shaft, among other maintenance items.

I love the starter technology in this scooter, and with the idle stop feature's potential I was really geeked, as I do like killing the motor at stop lights.

I'll keep it in the back of my mind, but for now I'd like to thank this group for saving me from myself!

:)

Re: US Version PCX: Lack of Idle Stop Feature

Posted: Mon Dec 16, 2013 10:05 am
by gn2
Re that seized bearing, if penetrating fluid/heat doesn't free it methinks you'll need to cut the A-bracket and bearing off.
Or just take it to a shop to fit a new tyre and let them deal with it.