http://www.trademe.co.nz/Trade-Me-Motors/Motorbikes/Motorbike-Parts/Performance/auction_photo-33804657/permanent-0/photoid-12336047/photoid2-12336061/p-1/title-HONDA+NSR250MC21+HRC+RACE+DERISTRICTOR.htm

just wanting to check what this derestrictor does? is the the same as a wire splice? were does it plug in, i guess the pgm and ? dont recognise the grey plugs. thanks
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94 mc28 SE

I've got one of those, and it makes you a track God! Women love you, men admire you, mechanics worship at your feet.

Ok, so it actually removes the speed restriction and slightly advances the ignition.

You have to monkey about with the wiring, as it's designed to fit an HRC loom, not the standard one. I chopped the plugs off, then crimped pins on to match the stock loom, inserted the pins into the loom plug and sealed the whole lot up with silicone - a perfectly valid battle damage repair for aircraft.
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Dave Ett wrote:I've got one of those, and it makes you a track God! Women love you, men admire you, mechanics worship at your feet.
.

how bizarre i also have the HRC box on my SP and i seem to have this trouble aswell dave, traffic lights are terribal with all the women with brollys fighting to be the one to stand over you
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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

Monkey, the only things that are terrible in your life are your grammar, spelling and punctuation.

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Please do not PM me technical questions, if you can't find it on the Forum start a thread

and in yours, your 80s haircut, shame theres no flicking the bird smiley, go back to you 200bht a day bargirl hippy.
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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

Do those work for both 21 & 28 or just one of them ? I have seen them for sale, but don't know if I can use it.
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They don't work on the 28, that's the 030 smart card.
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Has anyone ever had to balls to rip one of these to pieces and find out what's inside?

My meter says that they've done an expensive wire splice, but then again, I haven't put the meter across it with the engine running.

Er, no. That's what you're for Matt!
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Oooh errr.

S'pose I'd better have a go then.

Anyone want to buy one that's been tampered with?

Buy now, not after result!

I'm not sure I want to know, the mystery may be removed and the kudos of the HRC black box will be stripped away!

How am I gonna pull the birds then?

Mind you, with a siezed solid engine I don't suppose it matters...
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Dave Ett wrote:
How am I gonna pull the birds then?
..

you could try not tucking your t-shirt into your jeans
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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold

They don't mind that, it's tucking it in my pants that turns them off.
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

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MC21SP - Roth-tax
CBR400 - track
MC21R - sold
MC21SP - sold