Lams MT07 and derestricting, R3 questions

[tim2412]

Hey guys,

So I recently got my learners and I am now shopping for my first bike and unleash my inner Rossi on Auckland's streets.

I've got about 10K to spend on a first bike and was thinking of getting a Yamaha MT07 as my learner's bike. Sticking to Yamaha since that is what my dad and grandad used to ride back in the day.

Only concern I have is that I know this is a tamed down version of the international MT07 to meet Lams specs, normally wouldn't mind but pricewise there's like a 500 dollar difference on TradeMe with the Lams version and the High Output (normal one).

To bring it up to spec post learners as well doesn't look like an easy job like removing a throttle restrictor somewhere as it looks like the engine itself has been downsized from the factory.

What do you guys reckon? Is it still worth getting? There seems to be something inside me that finds it inherently wrong to ride a 'neutered' bike when I can get something like the R3 for cheaper. Although it's not as powerful, it's still the same R3 as overseas and I guess it feels good to ride a slower bike that's built like that instead of a faster, torquier bike that's made slower. Plus I can put aside the extra 3-4k from the R3 towards a full powered MT07 in like 18 months.

Cheers for the input guys.

Tim

[Mike.Gayner]

The MT07, even restricted, makes the R3 look like the slow, overpriced piece of shit that it is. The restriction is a throttle place, slightly smaller displacement and an ECU restriction.

[pritch]

Hey guys,
To bring it up to spec post learners as well doesn't look like an easy job


You have a gift for understatement. It just isn't an option.

See if you can get a test ride, if you like it buy it.

With a bike like that you shouldn't have to change bike as soon as you get your full licence. It's not like the "old" days when you didn't want to stay stuck on a 250.

[EJK]

Hey guys,

So I recently got my learners and I am now shopping for my first bike and unleash my inner Rossi on Auckland's streets.


This ought to be good.

[Oakie]

So I recently got my learners and I am now shopping for my first bike and unleash my inner Rossi on Auckland's streets.

Oh dear. This may not end well. Trust me Tim ... better for a start just to unleash your inner Nana.

[Ulsterkiwi]

This neutered bike you speak of will probably be capable of much more than you are.
If you want to be taken seriously on a forum like this, it would probably best not to preface "release my inner Rossi" with "just got my learners"
Additionally, speaking like this and making reference to Auckland in the same sentence is simply asking for the Akzleator to come and get you. You have been warned, you're welcome.

[GrayWolf]

ok, firstly, this isnt a 'neutered' version, it's a specific version. The MT-07 is a 700cc bike elsewhere, the Lams version is a '660'cc version.
Secondly, and believe me this is FARKIN expensive. I know from 'de-restricting' an MT-01, yamaha frequently use an 'intelligent' O2/emission system, that will either require a completely new ECU {from yamaha, and will remove an arm or leg} or at least a PC-V plus 02 optimiser unit and dyno tuning.
even taking this into account, if you go read the reviews the LAM's version has a very good write up and is not a de-tuned 'wimpy version'.
I doubt very much if de'restricting' will give you huge improvement Vs cost..
again from personal experience with the MT-01, it was an expensive exercise, DID make a 'noticeable' improvement, but, cost Vs? :shutup:
Buy the 07 and just enjoy it as is.

[Asher]

A friend has a restricted MT-07, derestricting them is easy. There is a stop in the throttle body so it can only open so far, basically you can only open the throttle 50%. You can cut the stop out with a dremel.
The issue is when you want to sell it its very difficult to return it to lams.

All of the new sporty LAMS bikes are more then capable for a learner. Ninja 300, Cbr300/500r, MT-07, RC390, XJ6, R3.

If you want something with more power you are better off fast tracking getting you full license, with CTBA courses you can get your full in a year.

[Mike.Gayner]

A friend has a restricted MT-07, derestricting them is easy. There is a stop in the throttle body so it can only open so far, basically you can only open the throttle 50%. You can cut the stop out with a dremel.
The issue is when you want to sell it its very difficult to return it to lams.

That's NOT all there is to de-restricting them. They are both capacity and ECU restricted, so unless you intend on boring the cylinders and replacing the ECU, you're not going to derestrict by modifying the throttle stop.

[Asher]

That's NOT all there is to de-restricting them. They are both capacity and ECU restricted, so unless you intend on boring the cylinders and replacing the ECU, you're not going to derestrict by modifying the throttle stop.

Ok maybe 'deristricting' is a bad choice of word, but cutting out the throttle stop will make the bike faster. It will also make it non lams and likely void any warranty on engine components.

[AllanB]

Buy some old cheap thrasher, spend money on training courses so you can advance your full license quicker (can you still do this) - then buy the full bore Yammy.

[FJRider]

Ok maybe 'deristricting' is a bad choice of word, but cutting out the throttle stop will make the bike faster. It will also make it non lams and likely void any warranty on engine components.

How many times have you done this on THIS model ... or ANY model ... ?????????????????????????????????????????????????? ????

[Asher]

How many times have you done this on THIS model ... or ANY model ... ?????????????????????????????????????????????????? ????

Never, just going by what my friend said he did to his, you?

[FJRider]

Never, just going by what my friend said he did to his, you?

I never made the claims YOU did.


Your post seems based on your opinion. NOT experience ... true or false .. ??? :scratch:

[Asher]

I clearly said my post is based on the experience of my friend.

[FJRider]

I clearly said my post is based on the experience of my friend.

Your original post said ...


Ok maybe 'deristricting' is a bad choice of word, but cutting out the throttle stop will make the bike faster. It will also make it non lams and likely void any warranty on engine components.

No mention you have friends ... ;)

[GrayWolf]

A friend has a restricted MT-07, derestricting them is easy. There is a stop in the throttle body so it can only open so far, basically you can only open the throttle 50%. You can cut the stop out with a dremel.
.

Well looks like your mate is full of BS......
this is taken {the technical 'how to' not included} from the MT/FZ-07 owners forum, just a throttle body stop restriction????? :weird::weird::weird:

Derestricting the LAMS MT07 Australia
NOTE: the following results are with an engine already with an Akrapovic snail pipe full exhaust, a DNA filter with a home made inlet plate, and a reflashed ECU . <<<<<< these had given me 54 rear wheel HP dynoed ( about 6 to 8hp over stock).

I have the Australian restricted model MT07. I reflashed the ECU and have Akra snail pipe and DNA filter and the throttle rotation restrictor was removed, but the dyno run revealed sill only 54rear wheel HP.
Now the reflash was to Euro spec so the only difference should be the 655ccrelarive to 688cc and the resulting .5 integer decrease in compression ratio. As far as i can make out the has been no cam or valve changes.
Getting hold of the dyno run graph of hp/revs and AFR/revs and comparing them to the published curves for various products on the net I discovered that up to 5000rpm they are all pretty much the same as mine BUT after that the AFR gets richer and richer and the power starts to flatten out.
First thought was gas flow restricton. Either exhaust ( used a fair bit in the 70's and 80's) or an airbox restriction. Crude but reasonably effective in cutting the balls off the power.
SOOOOO... I first went and watched alll the videos on the introduction of the Aussie model and in one , and one only, the reviewer mentioned an airbox restrictor. Time for some mining.
The airbox internal stacks have a very crude double right angled ledge completely around the inside of the entrance to the throttle bodies butting against them. the throttle body inlet is 41mm. The restrictor is 30mm. That restricts the flow to about 53% ( actually less because of the shape of the restriction..

PLEASE NOTE:!!!!!!!!
IF YOU ARE A BEGINNER AND/OR IF YOU HAVE NOT FIXED THE SOFT SPRUNG REAR END DO NOT DO THIS MOD!!! The MT07 has a few quirks that make this bike not really suitable for beginners anyway and this will make them worse. The power increase is going to heighten the rear weight bias problems and make the front even more vague in corners.
If you are a heavy loaded tourer this mod is worth doing probably as you will be running bigger airflows at lower rpm even without the reflash.

so its an ECU reflash, exhaust/filter, inlet stacks, and a throttle stop to derestrict a LAMs MT-07