lele
Well-known member
I drink too many beers or is possibile ?
OK maybe is fantascience
Cheers
OK maybe is fantascience
Cheers
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6 gear slipper tranny "2016" in old 5 gears engines?
- Thread starter lele
- Start date
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El Toro Joe
FYYFF
But I thought that the FJR didn't need a 6th gear...
1911
Well-known member
I swapped a 6 speed trans from a Husky WXE610 into a formerly 4 speed TC610 motor once. Hope this helps
Kind of a pointless thread isn't it?
+1 @ TripperMike. I'm sure it could be done, but you'd have to pull the engine and split the casing to get to everything. With only an estimated 10% drop in RPMs at speed, why bother? That 10% doesn't really effect fuel efficiency 1:1, and we already get some really good mileage with just the 5 gears.
2degreesout
Well-known member
Are the gears thinner and more prone to breakage now?
garyahouse
newbs need the forum
BakerBoy
Well-known member
Yes, it can be done: take your bike to a dealer, and when you pick it up, it will be blue. Chances are the dealer can put ES on it and LED lights at the same time. Expect it to cost a few thou, or more depending on the age of the bike when you take it in.
garyahouse
newbs need the forum
No. Totally different engagement system enabling more (similar size) gears to fit in the same space.
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Old Guy
Well-known member
Last Thursday I stopped by the dealer that I bought mine from and an old acquaintance of mine who is a mechanic there and rides a Gen I was really jonesing for the transmission out of one. I asked if it'd fit, and he seemed sure it would. I still question how he could be so sure without actually trying one.
El Toro Joe. I think it's adequately proven that it doesn't need one over the 15 years it's done fine without it, but a lot of people sure want one
DeSudet. I found a owner's manual with the ratios recently, and as I remember, there's less than a 9% reduction in RPM. I think the 5-speed is turning about 4000 rpm at 75, and the 6-speed would be turning roughly 3650.
El Toro Joe. I think it's adequately proven that it doesn't need one over the 15 years it's done fine without it, but a lot of people sure want one
DeSudet. I found a owner's manual with the ratios recently, and as I remember, there's less than a 9% reduction in RPM. I think the 5-speed is turning about 4000 rpm at 75, and the 6-speed would be turning roughly 3650.
El Toro Joe
FYYFF
DiggerDr.
Well-known member
What's the point? Just swap the whole engine. Bound to have less miles on it.
FJRay
Well-known member
A classic case of mental masturbation. Even if it could be done , Why??
N4HHE
Well-known member
P/Ns for the engine cases changed from 2015 to 2016. Surprised to see the 2016 engine case MSRP is about $50 less.
Think if one really wanted a 6 speed the cost would be prohibitive to purchase the parts from Yamaha. That one would need a donor bike. And if one finds a donor bike the thing to do would be transplant the entire engine.
wfooshee
O, Woe is me!!
With the cases being different part numbers, i'm gonna go with no, can't be done.
Even if you did want to actually get ALL the parts for both shafts, the shift drum and forks, and the middle gear shaft, because it's different, too (The gear ratio from the output shaft to the middle gear shaft.)
Engine swap. Assuming the engine fits and they didn't move any mount points.... Doubtful on engine not fitting because the frame actually is the same part number to prior bikes.
Even if you did want to actually get ALL the parts for both shafts, the shift drum and forks, and the middle gear shaft, because it's different, too (The gear ratio from the output shaft to the middle gear shaft.)
Engine swap. Assuming the engine fits and they didn't move any mount points.... Doubtful on engine not fitting because the frame actually is the same part number to prior bikes.
lele
Well-known member
My Gen1 five speed at 130km/h (80mph) rev 4750 rpm, new six trasmission at the same speed rev 3850 (from what I read somewhere on fjrowners.com)
Because I need one more gearA classic case of mental masturbation. Even if it could be done , Why??
lele
Well-known member
Old Guy
Well-known member
I don't think there's near that much difference. That's almost a 19% difference. I think it's much closer to 9%. I took the ratios from my Owner's Manual (2013) and compared them to the ratios I found in a 2016 European manual I found online and made this chart. I could have done a nicer job with labeling, but the 4000 at the lower left is about what my 5-speed is turning at 75mph, and the 3642.626 is calculated from the 6th gear ratio on the 2016.
lele
Well-known member
Ok I' m starting to understand my bike is the only Gen1 turning so high on highways (or maybe my metzeller rear tire circumference is smaller than other..)
