Speed governer

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Trixed
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Speed governer

Post by Trixed » Mon Dec 02, 2013 1:36 pm

I have a Japanese spec model. Apparently it has a governer fitted to prevent speeds above 180. The difference with mine now is that it has an electronic speedo and the oem one is obsolete. In fact sits at a 0 at all times as the cable is disconnect.

Question: The governer should now be tricked into thinking the bike is at 0 k an hour? This should allow speeds above 200 I believe. Thoughts?
Last edited by Trixed on Mon Dec 02, 2013 8:40 pm, edited 1 time in total.
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cobbadiggabuddyblooo
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Re: Speed governer

Post by cobbadiggabuddyblooo » Mon Dec 02, 2013 2:43 pm

No not quite. They figured people may try and get around this by just disconnecting the speedo cable. But how it all works is they have placed magnetic sensors at 0kph and another at 180kph that are picked up as the needle revolves around the dial.
But you may be in luck with your new ignition system inplace, because those sensors send signal back to the ECU to govern the motor.
There's a good chance when you look at the multipin connectors on the new ignitor you may find one extra on your trx wiring loom and hopefully there will not be one corresponding on the ignitor loom to trigger the limiter. :wink:
l didn't get a chance to do over 180kph down my 50kph street when I took your bike for a ride after fitting the programable ignition :lol:
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Snod Blatter
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Re: Speed governer

Post by Snod Blatter » Mon Dec 02, 2013 4:25 pm

Mine has a MPH speedo fitted so no magnets (if that affects the Japanese CDI), and it was limited in top speed by the 7K RPM barrier at about 115MPH with 17/42t sprockets. With a green stickered CDI there are no limits, and it's a cheap enough thing to fit.
'95 4NX with K&N filter, Motad Venom cans, YSS PD valves, Ohlins fork springs, 530 C+S, Green CDI, 11/16 radial master cylinder, +30mm jack up dog bones. Enjoyable money pit.

Trixed
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Re: Speed governer

Post by Trixed » Mon Dec 02, 2013 8:43 pm

Guess there only one way to find out. Push it over 200. Cobba it does make sense not have a limit on the new ignitor. Will have look.
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Adrian9912
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Re: Speed governer

Post by Adrian9912 » Tue Dec 03, 2013 9:35 pm

You can buy a small "bypass cable" of sorts that is meant to de-limit the Japanese spec bikes, I dont think I've seen any on ebay though. Most of them all come from japan from what I've seen

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Snod Blatter
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Re: Speed governer

Post by Snod Blatter » Tue Dec 03, 2013 10:17 pm

Adrian9912 wrote:You can buy a small "bypass cable" of sorts that is meant to de-limit the Japanese spec bikes, I dont think I've seen any on ebay though. Most of them all come from japan from what I've seen
Mine has a mystery grey box behind the clocks, apparently they work (to remove the 7K RPM limit) when the speedo is the correct Japanese one but when the speedo is changed the CDI reverts to its default limits. I would happily sell that little box if anyone wants it? No use to me and quite an interesting little gadget if you like that sort of thing! It plus in between the wires going to/from the tacho.
'95 4NX with K&N filter, Motad Venom cans, YSS PD valves, Ohlins fork springs, 530 C+S, Green CDI, 11/16 radial master cylinder, +30mm jack up dog bones. Enjoyable money pit.

hickoztrx
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Re: Speed governer

Post by hickoztrx » Mon Dec 09, 2013 9:57 pm

Guys i was trying to figure this one out for ages and i finally went and bought the 4UN CDI unit.... problem fixed the needle now runs off the clock with no hesitation...
i have the same Japanese import and that was all that is needed..

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