According to LTO Administrative Order No. ACL-2009-018
the maximum noise level for an exhaust system for motorcycles and vehicle is 115db  (115 decibel)

See page 23 of ACL-2009-018

to summarize, Any exhaust system must not exceed 115db noise level.

Here is the complete copy of the LTO ACL-2009-018

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source: LTO 7

Ive tried already so many  aftermarket exhaust for my bike and so far the best ones i found are AHM M1.
but lately i tried this UK made exhaust.. its scorpion serket taper titanium

This exhaust muffler has a taper designed, its quite big if compared with other aftermarket mufflers available in asia but it
has its purpose, it makes the sound of your bike bassy, low tone which is unique and gives your bike a racing machine sound 🙂

This can is made of titanium, the lightest and much stronger metal than stainless steel.

If you’ve noticed, the front part is circle shape. it has a standard size of most tubes used on racing exhaust which has inlet diameter
of 51mm, same size with AHM M1 triovale exhaust

the weld on the can is superb! using a TIG welding which is strong and refined. The inner mesh material is perforated metal with
specific hole for better sound dissipation.

What attract me most is the shape of the rear outlet.
its rear is a unique precision formed 6 facet profile and an Aerospace derived multi composite ‘Claw Contoured’’ outlet.

its similar with the akrapovic exhaust rear end but has has a unique red circle trademark by scorpion which defines “RED POWER”
dbkiller or silencer can be installed in this can as a bolt is provided just incase you need to little bit silent.

of course when you buy it, youll get a handy well protected muffler can box.
Yes quite expensive compared with other asian aftermarket mufflers but definitely its worth it!

Anyway heres the unboxing Video of the Scorpion Serket Taper Titanium exhaust

ENJOY RIDING! 🙂

Marc Marquez the Moto3 Champion is now on motogp this 2013 season riding for Honda team.
Valentino Rossi the motogp former champion  is back with his home Yamaha team.

Between the two great riders, who do you think will win this season?
will the spanish newbie outshines the italian legend?
well lets see… Marc Marquez versus Valentino Rossi.

FIGHT!

8th months ago, We’ve compared the UMA superhead with stock head of Yamaha Sniper.
Now Racingboy Malaysia just announced the released of the Superhead to the public.

It reveals more secret details of the superhead

The most noticeable in the picture above is the OVAL SHAPED exhaust, This shaped is very common in heads used in racebikes.
It gives a better flow of exhaust gas smoothly out of the engine.

The intake and exhaust valves size are still unknown…

Fully customized head made from scratch and not a rework from original t135 head

The super head intake ports are also in semi oval shape , Im just wondering if the intake manifold is also designed for the
superhead, Hopefully its part of the superhead package because the existing uma racing intake manifold has circle shaped
endport so it wont match the semi oval shape intake of the superhead.

But looking at the box, it shows the special  intake manifold is included 🙂

Racingboy Malaysia, Im still waiting for your response 😀

UPDATE :

Racingboy told me the valve size of super head are
– 23mm INTAKE
– 20mm EXHAUST

also from uma superhead thread discussed YamahaT135.com by botsok, it says it cost usd$500 all in!
that means it includes camshaft, valvespring, manifold.

Public sale is resched for some adjustments of the superhead specs…
expected release is on february 2012 2013

Yes the Doctor is IN!!!

2 years ago Valentino “The Doctor” Rossi moved to ducati because of unsatisfied multi million dollar deals and heated competition with
team mate Jorge Lorenzo. Rumors said that Rossi wants an increase in professional fee but Yamaha cant provide the money due to
global recession, So vale favored ducati’s lucrative deal.

2 years ago Chief mechanic of valentino, australian Jeremy Burgess said “We can fix the bike (ducati) in 80 seconds”
Guess what… 63,072,000 seconds later still they cant fix the bike!:-D

The two buddies blames Ducati for not acting quickly and not providing them a new crankcase for the ducati engine.
They believe that having a crankcase thats separate from the chassis is better over a frameless chassis crankcase in one.

So rossi and burgess decided to return to there former clinic… YAMAHA and yes THE DOCTOR IS BACK!!!

The next question is, Will his chief engineer/partner in crime/soulmate Jerry Burgess still be on his team? 

What do you think?
-Will the 2013 MotoGP season as exciting as 2010?
-Will there be a back to back/rubbing elbows performance with 2012 MotoGP champion Jorge Lorenzo this 2013 MotoGP season?

Well, Thats for us to find out 🙂

Suzuki Raider/Belang 150 and Yamaha Sniper/135LC are the fastest underbone in asia.
If the two fastest underbone in asia will be put on a race track, Who do you think will win?

In malaysia, They have this race called Petronas Cub Prix. Its the MotoGP racing equivalent of underbone
motorcycles in asia. These race were held all over asia sponsored by Petronas Gas and Oil Corporation.

I happend to see the results of the Round 8 of the said cubprix in malaysiancubprix.com website.
Upon checking the results, i was amazed to see that the 135cc Yamaha 135LC/Sniper is much faster
to the King of underbones Suzuki Raider/Belang 150 which is 150cc bike on the race track!

Below are the summary of the results held in melaka circuit, malaysia

TRACK LENGTH:
The race track is 1.1 kilometers and the race have 10 laps with a total distance of 11 kms.

FASTEST SPEED:
The fastest speed is also achieved by the Yamaha 135cc engine with topspeed of 74kph
while Suzuki 150cc engine got a topspeed of 71kph

FASTEST LAP TIME:
Yamaha 135cc : 52.88 seconds
Suzuki 150cc: 55.324 seconds

OVERALL LAP TIME:
The Yamaha 135LC has the fastest lap time of 9:04
While suzuki raider has lap time 9:22

Also i observed in the results, that if we combine both bikes on same race,
First 10 winning pole position are dominated by straight Yamaha 135LC,
while the Suzuki Raider 150 got the 11th to 20th position. That is based from the total lap time and average speed of both bikes.

Here is the compiled results of Yamaha Sniper versus Suzuki Raider comparison
(Click the image to enlarge)

Sniper 135 vs Raider 150 Results

What do you think of the result?

Thanks to demotix and malaysian cub prix for the pictures

In my previous post Yamaha Philippines first EFI motorcycle: Will it be Vixion, R15, R125 or Jupiter z1,
I said that if im wrong, I will give a freebie to a selected person who will leave a comment.

Well IM WRONG 🙂 , the First Yamaha Philippines EFI bike is Mio Soul 115i and not Jupiter Z1

So here it is, I use this random generator site to pick the winner…

AND THE WINNER IS: Richard Teody Lizaso Mendez

I will contact you via email Richard Teody Lizaso Mendez for the details.
Congrats and expect more contest/freebie item soon to anyone who will leave a comment

again congrats to the winner!

Philippines First Yamaha Mio Soul i (EFI) 115cc

Yesterday, Yamaha Philippines Inc launched its latest product, Yamaha Mio Soul I,
The first EFI motorcycle of Yamaha in the Philippines. We should thank Yamaha Philippines
for bringing in EFI scooter bike in the country.

Electronic Fuel Injection motorcycles are known to have the best fuel economy due
to its controlled fine mist of fuel into the engine. This is the same as with newest efficient
diesel cars known as CRDi (common rail direct injection) only that its for gasoline engines.

Yamaha name their EFI technology as  YM-Jet FI (Yamaha Jet Fuel Injection), While Honda
call them PGM-FI (Programmable Fuel Injection), basically it uses the same process that is
injecting a very fine mist of fuel into the cylinder, only different name for marketing purposes.

YM Jet FI Diagram

Yamaha Mio Soul i  in the Philippines is also known as Yamaha Soul GT in indonesia and
Yamaha Mio 115i in thailand. We have to find out what will it be called in Malaysia.

Both indonesian version and Philippine mio efi versions are the same, Thailand version is different.
Its headlight is built together with the steering while the Philippine version is on its front body cowling.
The good thing about the Philippine version is the user has an option to install another headlight
using the thailand version thus having two headlights is possible 🙂

Head light difference between Philippine version and Thailand version

Speedometer is also different

Speedometer Yamaha Mio Soul EFI Philippines and Yamaha Mio 115i Thailand

The problem with previous version of mio is the lack of ubox space for helmet.
This new version solves it, the ubox is big enough to fit your helmet and few gadgets.

bigger ubox

The piston is forge piston, taken from Yamaha Sniper bike only its smaller in diameter.
Forge pistons are known for strength and lightweight which reduces engine vibration.

Yamaha Forge Piston

As well as its diasil bore where there is no steel liner but a full alloy silicon material
which helps desipates heat faster and efficient compared to steel bore.

However, its AIR COOLED engine unlike Sniper and Mio MX where its liquid cooled.
Surely future version of this EFI will  be liquid cooled. But since this is an introductory
EFI motorcycle of yamaha, The total cost of the bike is the first factor they put in.
Expect more variance of EFI bikes in the future.

Yamaha Air cooled Diasil Bore

Anyway heres the full specs:

2012 Yamaha Mio Soul 115i EFI Specifications

Engine type: 4 Stroke, 2 Valve SOHC, Air Cooled fan
Number / Position Cylinders: Single Cylinder / Horizontal
Cylinder Volume: 113.7 cc
Bore x Stroke: 50.0 × 57.9 mm
Maximum Power: 7.75 ps – 8,500 rpm
Maximum torque: 8.5 ps – 5,000 rpm
Starter System: Electric Starter and Kick Starter
Lubrication system: Wet
Fuel System: Yamaha Jet Fuel Injection (YM Jet-FI) System
Clutch type: Dry, Centrifugal Clutches
Transmission Type: Automatic V-belt

Fuel: Unleaded gasoline 91 octane gasoline or ethanol 91 octane or higher.
Fuel capacity: 4.8 liters.
Oil capacity: 0.8 liter.
Transmission power: Automatic V-belt (V-Belt).
Transmission rate: 2.343-0.874:1.
Ratio gear set: 9.882 (47/15 x 41/13).
Air filter: Paper (wet)

Operation pattern Transmission: Automatic CVT
Frame Type: Steel Pipe Down Bones / Steel Tube Underbone

Suspension Front: Telescopic
Rear Suspension: Unit Swing, Single Suspension

Tires Front: 70/90-14M/C 34P
Rear tires: 40P 80/90-14M/C
Brakes Front: Disc

Rear brake:  Drum
Ignition system: TCI
Battery: YTZ4V-MF (MF Battery)
sparkplug: C6HSA (NGK)

Trail: 26.5 ° / 100 mm
Length x width x height: 700×1, 850×1, 050 mm
Height from floor to seat: 745 mm
Distance from ground to air: 130 mm
Wheel base: 1260 mm
Net weight / gross weight of a full tank: 87/93 kg

The estimated fuel efficiency of this motorcycle is 55.7 kilometers/liter!

The suggested retail price of Yamaha Mio Soul EFI is P78,000
Would you buy it?