MARCH 2018|PERFORMANCEBIKES.CO.UK 9720
10
0THE GARAGE / TEST BIKES
Yep, it’s still fouling
the exhaust. Pull your
finger out, WhiteySP Engineering full system
113.10bhp @ 8932rpm
66.90lb.ft @ 8449rpm
Fullsystem,plusECUre-map
125.00bhp @ 10,622rpm
69.50lb.ft@8159rpmFULL SYSTEM VS RE-FLASHED MT-091000 2000 3000 4000 5000 6000 7000 8000 9000 10,000 11,000 12,000Engine speed (rpm x 1000)Power/torque (bhp/lb.ft)11012013060
5040
30140100809070fuelling as lean as possible to meet the aforementioned
emissions regulations.
Dave has worked heavily on the ride-by-wire throttle
mapping because, after all, feel is everything – and he’s
very happy with where the bike’s at now. He’s also
managed to work wonders with the output gains
through the entire rev range. Peak power and torque
are up from 113bhp to 125bhp and 67lb.ft to 69.5lb.ft.
The high peak power gain is of course partly due to the
bike now being allowed to continue revving from 9k to
11k in top gear, but just look at the power and torque
increase at low to mid-rpm on the dyno curve (right).
All that for £300 and a day’s hard work. For Dave.
The MT-09 is going to be quite different to ride and
I wish I could describe just how that feels, but the
weather has meant I’ve not even been able to pick the
Yamaha up from DWR, let alone ride it. That and I still
have to come up with a solution to the new rearsets
fouling the exhaust when the rear brake is applied. I use
the back brake more than a CBT pupil and I dare say the
MT-09 is going to need more rear stopper applications
than ever as it does its best to rotate around the rear
wheel with its new-found torque. So, I’m sitting on my
hands for a bit longer.
I had made a new clutch cable without a hard metal
bend at the bars to relieve the pressure on the standard
cable since fitting the new Barracuda bars last month,
whichwassimpleenough.A
newYamahaR1clutchcable
for a 2003 model had the
rightlengthouterwithout
said metal elbow, but the
inner was a little longer than
the MT’s. I cut that to length
and soldered a new nipple on.
By this time next month I’ll
have sorted the back brake issue,
hopefully will have done something
about the swingarm-mounted
numberplate scaffolding which has been bugging
me from the day I took ownership, and I promise you
I’ll also find a window in the weather to carry out my
own ‘new model’ test with my experience of Yamaha’s
own MT-09SP in mind.Ditching the hard outer
shoulder relieves pressure