FJR'07engine is throttling back to 79kW.

[qbis0]

Hello,

I have very big problem with my FJR. I bought FJR 2007 in France and in documetation I have information that power of my moto is 79 kW it's about 106 horses normaly in Poland all FJR have 147horses. French law not allow to have stronger moto than 110 what is completly stupied for me.

Anyway today I was in yamaha service in Poland and they told me that if I want to have full power 147horses I have to change ECU but is very expensive about 1500 USD. It's sure that lost of the power is caused only by the electronical locking.

So my question is: It's possible to get back rest of the power for my engine withot buying new ECU????? (modifications on some wires connexions, etc...)

If somebody have some ideas please HHHHHEEEEEELLLLLPPPPPPP I'm not gona loose more than 40 hours.

service offer me to replace my ECU on the new one with numbers 3P6-8591A-02 or 3P6-8591A-03.

P.S

....sorry for my english language.

 

[PA1195]

Hello,I have very big problem with my FJR. I bought FJR 2007 in France and in documetation I have information that power of my moto is 79 kW it's about 106 horses normaly in Poland all FJR have 147horses. French law not allow to have stronger moto than 110 what is completly stupied for me.

Question: does your F motorcycle have a different RPM limit that other EU motorcycles? Our limit is 9K. I wonder if they limit spark timing or RPM's (or???) to reduce the power. Someone here may have a spare ECU available, I don't.

EDIT: Answered part of my own question below. Now to figure out if they do it via the ECU ignition timing or ???.

https://www.yamaha-motor-europe.com/product...?view=techspecs

https://www.yamaha-motor.fr/produits/motos/...?view=techspecs

Gary in Fairbanks

 

[madmike2]

The horsepower and torque specifications are at a lower RPM but that does not explain HOW. They could be moderating the ignition and/or the fuel to achieve the results and that would bring the max power at a lower RPM.

I'd bet that one has to replace the ECU. Are there any available in wrecking yards in Europe.

Stef? Paging Mr. Teerex to the white courtesy phone. Would you please help another Euro owner

 

[charismaticmegafauna]

The horsepower and torque specifications are at a lower RPM but that does not explain HOW.

Lower RPM, in itself (all other things being equal), delivers less horsepower. Horsepower is a function of engine speed (revs) -- more revs = more horsepower, 'AOTBE', (and the converse...).

They could be moderating the ignition and/or the fuel to achieve the results and that would bring the max power at a lower RPM.

Different cams with less opening (lift) and/or shorter duration could also accomplish this. Often, engines with less radical cam profiles yield very nice operation (driveability) but come up a little short in the HP department.

I'd bet that one has to replace the ECU. Are there any available in wrecking yards in Europe.Stef? Paging Mr. Teerex to the white courtesy phone. Would you please help another Euro owner

Part # comparisons might be a big help...?

 

[ionbeam]

Well dang fellers, ya made me look. Yamaha Fr say:

Puissance maxi. 79,7 kW (108 ch) à 7 500 tr/min

Couple maxi. 116,1 Nm (11,8 kg-m) à 6 000 tr/min

So, the MIA 40 hp is due to redline being only 7.5k rpm. Sounds a lot like ECU only to me. I'm sure that Yamaha didn't want to fabricate parts specifically for a Fr motorcycle. The cost of country specific parts and then keeping the manufacturing of Fr FJRs segregated from the real FJRs would be a problem.

FWIW, a new state side ECU can be found for USD $650 go $700 so a salvage ECU should be ~50% or $325 or less.

 

[RadioHowie]

Betcha a hundred Euros there's a jumper in the ECU you snip (or place) to move the rev limiter up 2k.

Just need a non-cheese eating FJR ECU to compare to.

 

[user 213]

The Gen I bikes in France used a different airbox, and possibly a different ecu. There were some obvious restricters inside the airbox. Not simple to remove, but it's been done. You might check over on the UK FJR forum, FJROwners

 

[PA1195]

The Gen I bikes in France used a different airbox, and possibly a different ecu. There were some obvious restricters inside the airbox. Not simple to remove, but it's been done. You might check over on the UK FJR forum, FJROwners

Friday thought. They obviously use frog hair air filters that don't suck worth an darn. Anyone remember the Citroen 2CV? AKA "de Deuche" Underpowered POS.

Gary in Fairbanks

(must be someone that has a pre Service Bulletin ECU laying around he could try)

 

[jzzmusician]

The Gen I bikes in France used a different airbox, and possibly a different ecu. There were some obvious restricters inside the airbox. Not simple to remove, but it's been done. You might check over on the UK FJR forum, FJROwners

Friday thought. They obviously use frog hair air filters that don't suck worth an darn. Anyone remember the Citroen 2CV? AKA "de Deuche" Underpowered POS.

Gary in Fairbanks

(must be someone that has a pre Service Bulletin ECU laying around he could try)

Hey. I LIKED the 2CV. Didn't do anything well but was a load of fun.

 

[PA1195]

Hey. I LIKED the 2CV. Didn't do anything well but was a load of fun.

Yea, like I said - French (Friday's dogpile day)

Edit: Actually my stepdad had a Renault Dauphine in the early 60's that I ate the clutch in one fine Summer's eve back in Wisconsin. Another POS, at least that's what my date said when she had to walk home before cell service.

Gary in Fairbanks

 

[charismaticmegafauna]

Hey. I LIKED the 2CV. Didn't do anything well but was a load of fun.

Yea, like I said - French (Friday's dogpile day)

Edit: Actually my stepdad had a Renault Dauphine in the early 60's that I ate the clutch in one fine Summer's eve back in Wisconsin. Another POS, at least that's what my date said when she had to walk home before cell service.

Gary in Fairbanks

A '60s sport coupe/roadster version of the Renault Dauphine:

Do you like French cars better now? :huh:

p.s. "Summer's eve" is a somewhat dangerous topic on the FJR Forum....

 

[bikesniffer]

The Gen I bikes in France used a different airbox, and possibly a different ecu. There were some obvious restricters inside the airbox. Not simple to remove, but it's been done. You might check over on the UK FJR forum, FJROwners

Friday thought. They obviously use frog hair air filters that don't suck worth an darn. Anyone remember the Citroen 2CV? AKA "de Deuche" Underpowered POS.

Gary in Fairbanks

(must be someone that has a pre Service Bulletin ECU laying around he could try)

...don't you bash my first car in 1970, a very reliable and fun 2CV, underpowered yes but this POS would take me anywhere I ventured out to, cheap to run and with a rollback roof, fondly remembered :yahoo:

Alfredo

 

[madmike2]

And I remember driving the family Dauphine!

But, back to the question at hand from a forum member who lives in Europe......

 

[bikesniffer]

Hello,I have very big problem with my FJR. I bought FJR 2007 in France and in documetation I have information that power of my moto is 79 kW it's about 106 horses normaly in Poland all FJR have 147horses. French law not allow to have stronger moto than 110 what is completly stupied for me.

Anyway today I was in yamaha service in Poland and they told me that if I want to have full power 147horses I have to change ECU but is very expensive about 1500 USD. It's sure that lost of the power is caused only by the electronical locking.

So my question is: It's possible to get back rest of the power for my engine withot buying new ECU????? (modifications on some wires connexions, etc...)

If somebody have some ideas please HHHHHEEEEEELLLLLPPPPPPP I'm not gona loose more than 40 hours.

service offer me to replace my ECU on the new one with numbers 3P6-8591A-02 or 3P6-8591A-03.

P.S

....sorry for my english language.

Hello qbis

There are several ECU's available on ebay.com (US)

If you need any help please PM me...

Alfredo

 

[un4gvn]

Hey, I have a couple US model ECU's laying around. What are you willing to pay/trade for one?

Hello,I have very big problem with my FJR. I bought FJR 2007 in France and in documetation I have information that power of my moto is 79 kW it's about 106 horses normaly in Poland all FJR have 147horses. French law not allow to have stronger moto than 110 what is completly stupied for me.

Anyway today I was in yamaha service in Poland and they told me that if I want to have full power 147horses I have to change ECU but is very expensive about 1500 USD. It's sure that lost of the power is caused only by the electronical locking.

So my question is: It's possible to get back rest of the power for my engine withot buying new ECU????? (modifications on some wires connexions, etc...)

If somebody have some ideas please HHHHHEEEEEELLLLLPPPPPPP I'm not gona loose more than 40 hours.

service offer me to replace my ECU on the new one with numbers 3P6-8591A-02 or 3P6-8591A-03.

P.S

....sorry for my english language.