aftermarket pipe / Open Pipe Max Noise allowed 115db (LTO ACL-2009-018)

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

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Projector Headlight, A MUST FOR SAFETY!

Ok, i used to install projector headlight on my bike several years ago but i decided
to remove it due to there are “dark hotspots” in the light beam,

now i just realized the dark spots was due to substandard quality of projector reflective lens.
Heres the old thread tutorial for my DIY projector kit how to for motorcycle headlight

Recently i was able to get Morimoto projectors a known aftermarket brand from USA.
gladly i was able to get a HUGE DISCOUNT last december’s Cybermonday sale!!!

Projector headlight for me are one of the best upgrade to your bike or car especially
if you use HID XENON lighting kits. it adds SAFETY to you and to other vehicles
due to better low beam cutoff which will give farther road light but wont glare on oncoming bikes/car.

I ordered 1 set of Morimoto Mini H1 and Morimoto D2S projectors from
these two projector types are the most common and known for its high quality projector kits.
the Mini H1 i use 4300K HID bulb and in Mini D2S i use 5000K bulb. The reason is for me to differentiate
between 4300K and 5000K.

if you want to know their differences based on physical dimensions, here it is:

The mini H1 is taller compared with Mini D2S. But D2S is wider.
So you really have to check your bikes internal headlight dimension if it fits.

I install Mini H1 on left headlight and Mini D2S on our Hyundai Eon mini car.
i had a previous experience in removing lens on my bike using a boiling water since we dont have oven at that time.
the disadvantage of using boiling water to separate your headlight lens is, your stock reflector “reflectiveness” will be affected.
I dont advise boiling water procedure if you are planning to bring it back to its original setting.

Now, i use a heat gun since Hyundai Eon headlight is too big for a home oven.
Here im using Dewalt D26414 Digital heatgun.


which as temperature range from 50c to 300c.

I heat the sides of the headlight at 160 degrees celsius and carefully pry it using flat screws.
expect some small back casing breakage especially if your first timer…

Heres what my car headlight looks like after separating clear lens from back case

installation of Morimoto projector kit is very easy and its plug and play for H4 type headlights.
no other modification is needed!

Once everything is installed, heres the final look

Now for the light beam pattern



In high beam you will notice the cutoff difference of Mini H1 and Mini D2S

For Right Hand Driving (RHD) cars, it is best to install mini H1 projector on left headlight as it has lower highbeam cutoff
which reduces the glare on oncoming traffic BUT it has better and wider lowbeam light.

On right headlight, it is best to install Mini D2S as it has higher high beam cutoff which focuses on your own road lane
and will give you a farther light distance.

combining both the Mini H1 and Mini D2s in your car will give you the best projector setup.

Anyway heres the full video of the comparison and its light output and beam pattern difference.

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Scorpion Serket Taper Titanium Racing Exhaust

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

Scorpion Serktet Taper Exhaust can


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 🙂

taper shape exhaust

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

scorpion serket taper circle shape


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.


serket hexagonal shape


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.

scorpion red power

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.

scorpion exhaust box


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



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Moto3 Marquez “newbie” VS MotoGP Rossi “Legend”

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.


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Release of the long awaited UMA Superhead for Yamaha T135

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 😀



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

also from uma superhead thread discussed 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




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How to properly break-in your new motorcycle engine

Ive been building/rebuilding my engine several times and if i change a bore kit, I always follow the hard breakin process by MotoMan.

Basically its the opposite of the process of manual booklet style break-in process where you “baby” your new bike.
ride it slowly, Dont rev up,etc…

Well i believe the reason why factories advice that kind of “baby” breakin process is to save themselves from returns due to factory
defects or due to misuse of owner during the breakin process. Manufacturers are super cautious. They prefer the slow route of breakin
over the faster route where it will give them higher liability and returns due to misuse/improper engine break-in process.
So Manufacturers prefers the safer/economical side for them 🙂

As long as its properly done, doing a hard breakin is Good for you and your engine.
it will make your motorcycle run faster, more power compared to other similar bikes that follows the manual booklet “baby” breakin process.

The main idea of engine breakin is to properly seat-in the piston ring to the cylinder wall. That can be achieved by putting “load” to the ring
to expand it well to scrape off the micro peaks in the cylinder wall. This will give your bore best sealing ever with best performance.

Now to provide load to the ring, You need to accelerate hard! That can be achieved by revving up your throttle the moment you get your bike
or built the engine.  Just make sure that your engine is in normal operating temperature.
Thats idling it for 2-3 minutes then do the hard break in process.

To summarize:
-Rev up your throttle in every gear (but not the top/last gear)
-Decelerate by downshifting
-Vary your RPM/ Play with the throttle
-Wide open the throttle no more than 5 seconds
-Do it several times
-Change oil after the initial break in process is done (around 50-100kms)

See this video for clearer details


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The Doctor is IN

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 🙂

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Sniper 135 vs Raider 150 on a race track


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 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

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

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

Yamaha 135cc : 52.88 seconds
Suzuki 150cc: 55.324 seconds

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

Sniper 135 vs Raider 150 Results

What do you think of the result?


Thanks to demotix and malaysian cub prix for the pictures


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And the winner is… What EFI bike Contest winner

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!

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2012 Yamaha Mio Soul i (EFI) 115cc

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

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

Head light difference between Philippine version and Thailand version

Speedometer is also different

Yamaha Mio Soul EFI Philippines and Yamaha Mio 115i Thailand

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

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

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

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?


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