6 speed in 5 speed gearbox - Page 5 - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #41 of 67 (permalink) Old 12-15-2019, 09:27 AM
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I applaud anyone who is a creative thinker and doer.

I had a 2006 FJR and have a 2017 now. It’s hard for me to make subjective comparisons because I had three bikes and 100,000 miles between the two FJRs. Bit I do remember my gas mileage fairly well. The 2017 gets about 10% better mileage, rough number.

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post #42 of 67 (permalink) Old 12-15-2019, 09:58 AM
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I had the two back to back. Going from 14-18, no improvement in my mileage. If I rode the bike like a 5 speed and only used 6 for highway, that’d be optimal, but I’m always fiddling in and out of 6th on secondary roads. 6th is an rpm-dropping joy for highway riding though.
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post #43 of 67 (permalink) Old 12-15-2019, 10:29 AM
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I’ve ridden a number of the 6spds and have zero concerns/complaints with them, they are very refined. And have ridden the 6spd back-to-back with my 5spd 14and have no complaints with either, the only real difference is that the 6spd feels less hurried at freeway speeds than the 5spd but the 5spd doesn’t feel strained either.

I’ve used all 6spds in around town traffic at 35mph which is on the edge of “lugging” the motor, and finally all I’ll say is that like Bill above if I had 100k or more (not that it’s worn out) I would probably trade my fastest color red 2014 for a new 6spd with zero regrets. From my view both are really good bikes and the 6spd is just a part of the continuous improvement program, I hope it continues but realize that it probably won’t. I have zero interest in a cruiser or a crotch rocket so I hope some “pencil-neck” at Yamaha realizes that the fjr fills a niche market and that even though they’re not going to sell a million of them a year it is still a viable market and quite frankly there seems to be more seen on the road every year that I’ve had mine.my .02

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post #44 of 67 (permalink) Old 12-17-2019, 12:06 AM
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I’ve ridden a number of the 6spds and have zero concerns/complaints with them, they are very refined. And have ridden the 6spd back-to-back with my 5spd 14and have no complaints with either, the only real difference is that the 6spd feels less hurried at freeway speeds than the 5spd but the 5spd doesn’t feel strained either.

I’ve used all 6spds in around town traffic at 35mph which is on the edge of “lugging” the motor, and finally all I’ll say is that like Bill above if I had 100k or more (not that it’s worn out) I would probably trade my fastest color red 2014 for a new 6spd with zero regrets. From my view both are really good bikes and the 6spd is just a part of the continuous improvement program, I hope it continues but realize that it probably won’t. I have zero interest in a cruiser or a crotch rocket so I hope some “pencil-neck” at Yamaha realizes that the fjr fills a niche market and that even though they’re not going to sell a million of them a year it is still a viable market and quite frankly there seems to be more seen on the road every year that I’ve had mine.my .02
Nice detailed explanation about 5 speed to 6 speed FJR !

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post #45 of 67 (permalink) Old 12-31-2019, 01:15 AM
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I wonder how the 6 speed does for top speed. The FJR runs out of steam at 145-150mph and does not pull redline with the 5 speed.
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post #46 of 67 (permalink) Old 12-31-2019, 03:28 AM
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I have zero interest in a cruiser or a crotch rocket so I hope some “pencil-neck” at Yamaha realizes that the fjr fills a niche market and that even though they’re not going to sell a million of them a year it is still a viable market and quite frankly there seems to be more seen on the road every year that I’ve had mine.my .02

And the tooling and development costs have pretty much been paid for long ago.


Now, one thing that MamaYama could do that wouldn't require any extra parts is to use the IMU on the 16s onward to implement true self canceling turn signals.




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I wonder how the 6 speed does for top speed. The FJR runs out of steam at 145-150mph and does not pull redline with the 5 speed.

With the stock windshield, MCN got their 2013 up to 150.7 mph. With the same engine, I would expect similar performance from the six speed. Because the bottom two gears of the six speed are a little lower that the five speed, I would expect the the six speed to be a shade quicker, but no faster.

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post #47 of 67 (permalink) Old 12-31-2019, 10:36 AM
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Now, one thing that MamaYama could do that wouldn't require any extra parts is to use the IMU on the 16s onward to implement true self canceling turn signals.

With end-user setable delay.
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post #48 of 67 (permalink) Old 01-01-2020, 12:56 AM
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hi
ever since the 2016 fjr 6 speed came out, i been thinking is it possible to fit a 6 speed gearbox in to a old 5 speedbox
i have been looking at the parts diagrams for a long time and i cannot see any difference in the crankcase for the
5 speed to the new 6 speed
to make a long story short, i went along and got my hands on a 6 speed gearbox, shifter drum and middle gear
i took the engine apart, the old gears out
the new 6 speed went inn very easy, i just have to grind a little in the casing to make room for the bigger gear wheel
on the left hand side of the
so now i have a fjr 2005 with a 2010 engine and with a 6 speed gearbox
some may ask why is he doing all this, it was easyer to buy a new bike with 6 speed
the answer is i like to do things like this, i have a background with harley davidsons where i use to change things like this
That's F****** amazing.

I've always wanted to know something you could probably answer. Where the ratio's for the 6 spd chosen specifically for spacial reasons? Meaning, could they have kept 1-5 alone and just made 6th taller? I'll never understand why they would tighten the ratio on a touring bike with so much torque.
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post #49 of 67 (permalink) Old 01-01-2020, 04:15 AM
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That's F****** amazing.

I've always wanted to know something you could probably answer. Where the ratio's for the 6 spd chosen specifically for spacial reasons? Meaning, could they have kept 1-5 alone and just made 6th taller? I'll never understand why they would tighten the ratio on a touring bike with so much torque.
I think 6th would have been way too tall. RPM would have been too low for the good range of the torque band. MPG would have suffered.

So when Marketing demands, "We must have 6-speed!" the only thing to do is lower 5th and all other gears to make room for 6th a bit higher than the old 5th.
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post #50 of 67 (permalink) Old 01-01-2020, 09:24 AM
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I never do understand the marketing reason for a 6 speed, but don't quite get why they chose the ratios they did. The 5 speed is one of the best out there for overall acceleration and mileage.
In 1st/2nd, the ratios were made taller, and the 5 speed should out accelerate it in those two gears. As for 6th. vs. 5th, at 70mph the difference is only 335 rpm... hardly worth it to me, but I get it moves the range of inherent "buzz" to a different speed.
The FJR is happy to sing at higher rpms, less engine load and better fuel efficiency... start bogging it down and that will suffer. As for top speed, there are so many factors affecting that... but the 5 speed should come out ahead there.
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