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GYTR vs stock '15 WR450

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Hi all. Sorry am new to forums so unsure if this has been asked before.

I have a '15 WR450, removed exhaust restrictor, throttle stop, and air box snorkel.

I have been reading up that the stock ECU can be modified with the Yamaha EFI power tuner. I have also read that adding in a GYTR ECU makes the bike more powerful all round.

My understanding is that GYTR tuner only works with GYTR ECU and Yamaha tuner works with stock ECU.

My question is, is there any point purchasing a GYTR ECU if the stock ECU can be mapped (as far as my understanding goes) to match competition ECU anyway?

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You can't map the stock ECU. You have to get the GYTR ECU and map it with the GYTR tuner. 

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Ozzie bikes come with the gytr ecu I believe,  the USA bikes come with a ecu that can't be modified for smog purposes.

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Acorrding to other Aussies, the showroom models are already GYTR converted, and the ECU you have is the GYTR version....at least on the '16 model..........but yes you must change to the GYTR ECU to remap it.....which your bike may or may not already have.

Edited by KRANNIE

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My ECU has 1DX1 written on it. I've noticed that in most youtube videos the '15 model on other bikes says 1DX2, and the competition ECU has 1DX7 written on it. I've tried searching the net to find out the specs on the 1DX1 but no luck.

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HI Gus-dude

If your location is correct (Australia) then you don't need to purchase the GYTR ECU as all WR's brought into Australia through official channels have an unlocked ECU.

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Well I purchased the Yamaha power tuner today. Plugged it in and keeps saying failure to connect to ECU

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Run through how you are connecting it to the bike.

Are you turning the bike on (not starting) after you plugged the power tuner in?

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Haha silly me! Forgot to put in the new adaptor lead when putting competition parts in. All works now :). Thanks all for the help

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Hi all,

Trying to resurrect this thread...

Gus-dude what is the adaptor lead you had to connect? I’m in Aus with a ‘15 WR450f and I can’t connect to my ECU with the tuner. ECU has 1dx1 written on it.

Any help would be greatly appreciated.

Cheers,

 

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4 hours ago, Agent Aggots said:

Hi all,

Trying to resurrect this thread...

Gus-dude what is the adaptor lead you had to connect? I’m in Aus with a ‘15 WR450f and I can’t connect to my ECU with the tuner. ECU has 1dx1 written on it.

Any help would be greatly appreciated.

Cheers,

 

It plugs in to the capped plug inside the airbox near the thumbscrew.

 

Plug tuner in, turn tuner on, turn bike ignition on tune away.

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Thanks Satan.

I’ve got the capped plug in the airbox and plugged the tuner into that in the order you’ve said with no luck. 

There’s nothing else I’m missing?

 

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So I’ve figured it out, after a lot of googling etc. 

There is a loom that needs to be installed under the seat behind the battery, it has a plug on one end and a chip at the other. The loom was in the competition/off road kit that came with the bike. 

See the attached pic I borrowed from yzfreak at dirt bike world and marked up.

Hopefully this will help others out if they’re having the same drama. 

All sweet now.

 

BA347A67-AF0A-482D-A9E8-94BDDB6F08B9.jpeg

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The connection for the tuner to plug into is in the airbox, but I needed to attached the loom under the seat for anything to work

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