Import cutout controllers

Poecilotheria · Nova Slayer Joined: 30 May 2012 Karma :

Has anyone ever owned a bike that has been imported that was factory fitted with a speed cut out?. I took my honda bros 400 out clean off the cobwebs but completely forgot about that. When I hit 60 the dash light started to flicker indicating im coming close to set speed limitations and shut down at 70.
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CaNsA · Super Spammer Joined: 02 Jan 2008 Karma :

https://www.google.co.uk/search?q=remove+honda+bros+speed+limiter

thx1138 · World Chat Champion Joined: 06 Oct 2005 Karma :

I've had a couple of import bikes that had a little red light come on but that was it

think our old BROS did actually, and at least one CBX750

secretagentmo... · Scooby Slapper Joined: 25 Aug 2016 Karma :

My YB100 would not go faster than 65mph, that was with me laminated to the tank as well!

Nobby the Bastard · Harley Gaydar Joined: 16 Aug 2013 Karma :

sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Poecilotheria · Nova Slayer Joined: 30 May 2012 Karma :

The bros has always been like that, first happened when I took it down the A47 on the first long distance voyage. Just cut out when I hit 65/70 and kept doing it at speed. I have not taken it out that often , its just part of a collection. The limiter was removed by a garage during service. I dont know about you but my 400 can move and will easily hit well I have been over 100 mph on track. I am modding it at the moment crossing it with parts from another honda 400.
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sickpup · Old Timer Joined: 21 Apr 2004 Karma :

Poecilotheria · Nova Slayer Joined: 30 May 2012 Karma :

It is entirely possible the clocks just went too high, they were a bit faulty tbh. MPH kept dropping to 0 every once in a while then spike and fall. The service was done by my family member who knows his bikes and runs a garage, i originally asked him what it was and to disconnect it, I never heard of it before that point. The speed circuit was taken offline about a week after I brought it, I just forgot about it until I pulled the bros from storage the other day thought I would just ask if anyone else had this, my OP was not very clear.
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stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

You can't simply "disconnect" the speed restrictor from a jap home market bike.

It's a mechanically operated optical switch. There's a disc in the back of the speedo which mirrors the movement of the needle. The disc blocks an optical switch. When it hits the maximum speed, there's a cutout in the disc, the optical switch makes contact and cuts the spark to one of the cylinders.

However, the switch constantly supplies a voltage to the CDI, that voltage is cut when you activate the switch. So simply removing the switch would activate the restriction. To remove it entirely, you need to find another way of supplying that voltage (and it's not battery voltage, it's lower, closer to 10v).

So it would be interesting to find out what they did because in my experience, that degree of electronics is beyond the ken of most motorcycle mechanics.

The optical switch looks like this:
https://i48.photobucket.com/albums/f216/stinkwheel/CIMG0825_zpsfbce85e5.jpg
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