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Monday, September 22, 2008

Uma Racing Pilot Jet (M6)

Uma Racing Pilot Jet (M6)

This racing pilot jet from Uma racing is used to modify the setting of the carburetor and usually used in conjunction with exhaust modification. Read my article about Uma Racing Main Jet for more info.
This part is available in many sizes that is; 30, 32, 35, 38, 40, 42, 45, 48, 50, 52
For more info, surf to here.

Uma Racing Main Jet for Racing Purpose

Uma Racing Main Jet

Uma Racing main jet can be use to upgrade the performance of your carburetor. With larger main jet diameter, more fuel can be pumped to the combustion chamber in your bike.
The modification of this item is usually done with modification of the exhaust to get maximum performance. A modified exhaust can consume a lot more fuel that normal exhaust, so, in order to feed the hungry exhaust, carburetor modification is needed. One part of the carburetor modification is to modified the main jet.
Uma Racing main jet is available in these sizes; 88, 90, 92, 95, 98, 100, 102, 105, 108, 110
For more info, surf to here.

Uma Racing Carburetor

Uma Racing Carburetor

Uma Racing parts especially the carburetor is very popular among bike enthusiasts. Uma Racing carburetor can give better performance than standard carburetor due to its oversize air intake diameter.
This carburetor is available in many sizes that is 24mm, 28mm, 30mm, 32mm and 34mm.
The bigger the diameter of the air intake, the more fuel and air mixture can be burnt and this also means it consumes more fuel than standard carburetor.
Usually, modification of carburetor is done with the modification of exhaust to get a good performance from both parts.
For more info, surf to here.

Uma Racing Ego/Nuovo Racing Auto Clutch

Uma Racing Ego/Nuovo Racing Auto Clutch

Racing auto clutch can give a better grip for the clutch in all RPM speed. Better grip can give better pickup and more speed.
This part is also lighter than the original parts.
For more info, surf to here.

Wednesday, September 17, 2008

More Pictures: Yamaha LC 135 Fiat Yamaha MotoGP 2007 Coverset

Fiat102: Light Blue

Fiat 103: Deep Blue (Lorenzo Edition)

Fiat 104: Dark Blue with black tail

All of this item is available at NKS Sentul. The price is estimated at RM500++. This coverset is one of the most popular coversets available for Yamaha LC135.

Changing coversets is easy and can be done all by yourself and the result can be very interesting.

If you have nice design of Yamaha LC135, please share it to this blog. Mail me at mohdwahidi(at)

Also, here is the address for NKS Sentul;

NKS Trading
648-650, Jalan Sentul, 51000 Kuala Lumpur Malaysia.

Business Hours:
Monday- Saturday
8:30am - 8:00pm
Sunday (1st and last)
9:00am - 3/4pm

Tuesday, September 16, 2008

Yamaha LC 135 Fiat Yamaha MotoGP 2007 Coverset

Yamaha LC 135 Fiat Yamaha MotoGP 2007 Coverset

This item is available at most workshop, but I suggest you try to find this coverset at NKS Sentul since there are a lot more choices of coversets.

This one is based on Fiat MotoGP 2007 Valentino Rossi bike with the number 46 clearly visible on the bike lamp cover.

Saturday, September 13, 2008

Umi Spark Plug: Iridium Power!

Umi Iridium Power Spark Plug

Normal spark plug use tungsten as their electrode. Tungsten is good for normal use of the bike since it can't withstand high temperature for a long time. For racing use or heavy duty use, it is advisable to use Iridium electrode spark plug. Also, by using Iridium, the contact area can be reduced to make a larger spark than normal spark plug. If you look closely in the picture, you will see what I mean. So, the Umi Iridium Power Spark Plug here should be a consideration next time you want to have your spark plug changed. What is expected from the usage of this Iridium spark plug is; better fuel economy, better long distance engine performance and better pickup.

Because of its scarcity and high cost, applications of iridium are severely limited. Although iridium metal and many of its complex compounds are good catalysts, no large-scale commercial application for these has been developed. In general, other platinum metals have superior catalytic properties. The high degree of thermal stability of elemental iridium and the stability it imparts to its alloys does give rise to those applications where it has found success. Particularly relevant are its high melting point (2443°C or 4429°F), its oxidation resistance, and the fact that it is the only metal with good mechanical properties that survives atmospheric exposure above 1600°C (2910°F). Iridium is alloyed with platinum to increase tensile strength, hardness, and corrosion resistance. However, the workability of these alloys is decreased. These alloys find use as electrodes for anodic oxidation, for containing and manipulating corrosive chemicals, for electrical contacts that are exposed to corrosive chemicals, and as primary standards for weight and length. Platinum-iridium alloys are used for electrodes in spark plugs that are unusually resistant to fouling by antiknock lead additives. Sourced from Wikipedia.

Racing Boy Shock Absorber with Gas for Yamaha RX-Z

Racing Boy Shock Absorber with Gas for Yamaha RX-Z

Compared to liquid, gas is much more lighter and compressible, thus making it suitable to absorb shocks. Based on this criteria (compressible), many high performance shock absorber tend to use gas as their shock absorbent.

The effect than can be achieved by using this gas shock absorber is better ride, more comfort and more control. Also, the design of this Racing Boy shocks is very nice with white colour and short metal holder case.

For more info, log to here.

Uma Racing Yamaha Ego Racing Engine Block

Uma Racing Engine Block for Yamaha Ego

Performance parts from Uma Racing is well accepted by most bikers here in Malaysia. Now, they have introduced a racing block for Yamaha Ego.

They are two sizes available for the bore size that is 58.5mm and 61mm. Even a slight increase of displacement can affect greatly in the combustion chamber size. For example, Kriss 120 only needed to be bored by 1mm to increase the cc to 125.

For more info, log to here.

Racing Boy Adjustable Damper

Racing Boy Adjustable Damper

This damper from Racing Boy can be installed to various bike namely LC135, 125Z and RX-Z.

It can be adjusted up to 6 different hardness or dampness. The harder you set, the more damp your handle will be. The hardest setting is good for sprint test but not for curvy track as this will make your turning much slower than usual.

For more info, log to here.

Tuesday, September 9, 2008

RZR: The Other Version of RX-Z

Yamaha RZR, Mexico Version of RX-Z

Different people have different taste. Different country, different market. So, what has been done by Yamaha in order to catch the motorcycle market in Mexico, they have modified Yamaha RX-Z version in Asia to Yamaha RZR.

The differences can be looked at the full-fairing set compared to the naked look of RX-Z and the rear brake that has been equipped with disc brake where RX-Z only have drum brake.

IMHO, I prefer the current look of RX-Z. The full-fairing maybe give a better aerodynamics than naked configuration but at a cost of more weight. The full-fairing also will make the access to the engine much harder. The thing that I want from RZR is the rear brake disc configuration to be installed on RX-Z as standard. Rear brake is important since it can give a better confidence in braking while in high speed. Some biker said that it is useless to use the rear brake, but for me, it is very important. Since RX-Z use a rear drum brake, that is a good way to make the bike much cheaper than other competing bike. The only competitor for RX-Z that I know is Honda Raider 135, but it is not so popular compared to RX-Z.

Looking back to Malaysia, I'm happy with the current design of RX-Z and my favorite colour for it is BLACK.

Monday, September 8, 2008

Yamaha Nuovo LC Mini Site

Yamaha Nuovo LC Main Page
HLYM has setup a new site to introduce its new bike that is Yamaha Nuovo LC here. There are a nice video on the front page about engineers designing the Nuovo LC on paper.

You can also join the mailing list to get more information about the Yamaha new bike. I have joined it, you should too!

Wednesday, September 3, 2008

Top Five Favourite Post About MotoMalaya

ACME Tyre: New Made in Taiwan Tyre in Malaysia

ACME Tyre advertisement on Roda-roda September 2008 issue

ACME is the new tyre made in Taiwan available to Malaysia marketed by Tools Clubs (M) Sdn. Bhd. I have read the article in the Roda-roda magazine and I noticed that this brand is not another cheap brand that is made to gain profit only.

ACME is similar to the word taken from Greek 'akme' that mean the highest point of perfection or achievement. So, in this case I hope the Acme tyre is really a good tyre that is comparable with Dunlop, Farelli, Michelin and other established name.

ACME tyres is made from silica and nitrile rubber mixed with high density rubber. This make the compound have very good balance between durability and grip on the dry and wet road. It is made for street use but using technology that is available for racing.

ACME tyres is available in sizes ranging from 10 to 17 inch. Price starts from RM45.90 for 70/90 x 16 up to RM66.90 for 130/70 x 12.


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