Yamaha XJR1300

[nudemetalz]

Bugger, now that I dont understand, why f**k with what is a simply outstanding engine, and drop it's power. I hope they didnt drop the torque produced as well as the bhp. I could live with that if the torque remained or improved a little.

IMHO it's all about emissions.

[James Deuce]

Torque the same at 108Nm. Or "adequate".

Interestingly a 1.3L Viva only has 71Nm of torque.

[nudemetalz]

I know which one is the better looking engine too....

[Phantom Limb]

Bugger, now that I dont understand, why f**k with what is a simply outstanding engine, and drop it's power. I hope they didnt drop the torque produced as well as the bhp. I could live with that if the torque remained or improved a little.

If you compare the ol' FJ1200 donk to the XJR1300 at a facts and figures scale it all makes sense. Yes the FJ was said to make 130Hp or so at the front sprocket and 108Nm and yes the XJR lump only makes 100Hp and pretty much the same torque when standard. The thing to keep in mind is that the XJR motor makes the same torque 1500RPM lower in the rev range.
Going by the 'crotch meter' I thought that the XJR pulled harder than the FJ through the revs and with a good set of 4-1 headers and a re-jet the upper rev range lights up nicely.

I reckon nudemetalz got the nail on the head re- emissions though, remember the XJR is one of the few oil cooled multi cylinders still on the market, so they had to do some wizardry to get it through the new regulations! Nothing a bit of fiddling can't fix.

Another factor too may be fuel economy, the old FJ was supposed to get 34MPG, an every day ridden XJR will see 40MPG even sans faring and with a bigger motor.

[SPman]

40 Mpg!

Will you please tell mine, that!

[James Deuce]

Mine also! Tell it properly.

[Ocean1]

Ah huh, pic's of teh machine. Looks very tastyfull, dude.

Glad you've come to your senses about cubic capacity.




There's a speck of dirt under the headlight, there....

[GrayWolf]

If you compare the ol' FJ1200 donk to the XJR1300 at a facts and figures scale it all makes sense. Yes the FJ was said to make 130Hp or so at the front sprocket and 108Nm and yes the XJR lump only makes 100Hp and pretty much the same torque when standard. The thing to keep in mind is that the XJR motor makes the same torque 1500RPM lower in the rev range.
Going by the 'crotch meter' I thought that the XJR pulled harder than the FJ through the revs and with a good set of 4-1 headers and a re-jet the upper rev range lights up nicely.

I reckon nudemetalz got the nail on the head re- emissions though, remember the XJR is one of the few oil cooled multi cylinders still on the market, so they had to do some wizardry to get it through the new regulations! Nothing a bit of fiddling can't fix.

Another factor too may be fuel economy, the old FJ was supposed to get 34MPG, an every day ridden XJR will see 40MPG even sans faring and with a bigger motor.

now THAT is interesting, the FJ is producing good torque from 3k rpm, I could roll the throttle on at 50kph in top and she would pull without any 'real issue' all the way to flat out. So if max torque has been shifted down 1500rpm and remains at the same 80ft lbs? That truly will be shoulder wrencher when used in anger. it would be interesting to resurface the old girl from the back of the garage and compare it to the MT as well.

[ducatilover]

now THAT is interesting, the FJ is producing good torque from 3k rpm, I could roll the throttle on at 50kph in top and she would pull without any 'real issue' all the way to flat out. So if max torque has been shifted down 1500rpm and remains at the same 80ft lbs? That truly will be shoulder wrencher when used in anger. it would be interesting to resurface the old girl from the back of the garage and compare it to the MT as well.

I can vouch for the FJs roll on strength, I took one for a tootle a few times, and whilst not superbike fast up top, it could do the Pahiatua track in top, easily and not be hanging around. Very useable.
I love that motor, I want to get one and shoe horn it in to something smaller

[nzspokes]

I love that motor, I want to get one and shoe horn it in to something smaller

A GN?

[nudemetalz]

Funny you guys mention FJ roll-on grunt. I assume the 1200?

I always remember my 1100 wasn't particularily lively down low compared to a mate's GSX1100EZ but past 5K would pull away from it then.
I guess Yamaha going to 1200 fixed that.

[ducatilover]

A GN?

Funny you guys mention FJ roll-on grunt. I assume the 1200?

Yup, the 1200 is a lovely lump.
I'd love to ride a 1300 one, although they're all a bit too heavy for a wee beggar like me

[Edbear]

40 Mpg!

Will you please tell mine, that!

My Kizashi easily gets 40mpg and it's 2400cc, weighs 1300kg and always has the air-con on.... has just under 200hp and 230nm.

[Phantom Limb]

now THAT is interesting, the FJ is producing good torque from 3k rpm, I could roll the throttle on at 50kph in top and she would pull without any 'real issue' all the way to flat out. So if max torque has been shifted down 1500rpm and remains at the same 80ft lbs? That truly will be shoulder wrencher when used in anger. it would be interesting to resurface the old girl from the back of the garage and compare it to the MT as well.

I did have sore shoulders and elbows after my first week of XJR ownership

Initially it felt like a large bloke smacking you in the back with a sledge hammer. Now it just feels great. .
In hindsight I'm happy that they went for more torque over retaining the FJ's top end power, having ridden both, the XJR just feels that little bit more angry. The FJ pulled like a 747, smooth and relentless from the get go, but the XJR pulls like a catapult launched glider, if you've been gliding you'll know what I'm talking about.

40 Mpg!

Will you please tell mine, that!

Gladly!
I was shocked myself, after balancing and servicing the carbs, my average consumption went down to 5.8L/100km (40.5MPG). Where it was 6.3L/100km (37MPG) when I first got the bike.

[Tigadee]

Nice score, JD! Love dem Yammys!