yes, this is the one to shave. I really found no where to shave in ur 1st pic.
I shave the cylinder head though, about 0.6mm.

My LC ady can win FZ150i from 0 - 120kph. Still 135cc

Not yet fully optimized. My exhaust system limited my true power, gotta design a custom pipe for myself soon.

let's see what we can squeeze out of a 135cc with stock camshaft, hahaha.
Saran: yes, deepen the valve pocket slightly. I am still using standard gasket.

RPM meter?? Cool.. N wat is that Zaptor????

i used KMC de~~~~

how to say fully fiberglass?
what is that?

its a breather filter

many car accesory shops have it

Anyone know the actual model for TZM's carb? Is it Mikuni TM 28mm? and also the price. Thx

Agree with charge. skim the part towards the top contacting the head.
the point of skimming block is to increase compression ratio. Make your own calculation to increase by say 0.5.

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Added on June 10, 2009, 11:51 pm

Google it lah...

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Added on June 10, 2009, 11:58 pm

Check the thickness of std gasket vs racing. My guess is racing gasket thinner.
If shave block, need to either deepen piston valve pocket.
Note: Deepen the valve seat on the head will not help.

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Added on June 11, 2009, 12:08 am

Well, there's always one bike that can smoke the rest. there's R1, then there's Haya, then there's B2K...
Belang should be very similar to FXR150 - if not mistaken, the same engine from a sports bike to a kapcai frame to appeal to the urban riders.

How can a 140kmh Belang goreng an LC? Should be on-par, right? Or do you mean pickup time lost?

Yeah, let's meet up next month or so.
I need some time to run in 160cc block (58.5mm bore)
I've tried with RGV before with current setup, still lose.
My gear ratio is too wide. I seriously want 6 gears on my bike !!
1st gear ok, 2nd gear onwards further a bit, 3rd gear (80kph onwards).... RGV starting to pull away.
Yes, you will lose some compression.
Perhaps you need to shave more in order to get more compression back

Aiyayaya gua prob sudah Kau Tim lu kena pula LCian really bad luck tis few days. Ei charge 57mm = 150cc right?? Instead of Carb wat else should we change if we wan to use a bigger block??

Whats the price range for a Mikuni 30mm carb nowadays?

now which is correct? 32mm or 30mm??

32mm. Not sure TM or VM, its round slide, not flat slide.
I think it's a custom model, with a Yamaha 4HF part number.

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Added on June 12, 2009, 8:36 pmOk, I don't mean to offend anyone by outrunning LC-ian here, just making friends.
For the record, my bikes all stock, no mod. I appreciate and satisfied with the original performance.

Belang... someday i smoke them for you guys la, ha?!

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Added on June 12, 2009, 8:46 pm

I think it's 32mm, as measured on mine.
It's the inner diameter of the smaller out port.
Haha, I no sir, just son of a motorsmith.
Do you need to deepen the valve clearance on the piston? Just make sure the valve's won't hit on the piston after the 0.5mm shave...
Did you mean deepen the valve pocket on the engine head? You would need a stiffer valve spring to handle that extra travel.
As for the compression, like Charge said, as long as no knocking would be fine. It's not easy to detect knocking as far as I know, so need luck here.
Additional 1mm? what's the diameter of the valve tapet head?
Ok, would love to meet Sang Belang on the road. Just to say hi...

Then we'll do 0-100 on the safe side, ok?
Find someday we convoy, then we do top speed? Mine is only 140... drag for a minute it'll touch 150. Not sure meter accurate or not.

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Added on June 12, 2009, 8:53 pmMay I ask, feel free to answer, why u guys don't choose a 2-stroke bike?

I'm holding a TZM carb and a ruler...

got 125  liao why change to 135 lc ?

fuel consumption for 2-stroke bike is bad, not suitable for me as students.
furthermore need to spend more on good quality 2T oil. most of 2-strokers also have a loud exhaust sound,
people might think we're rempit with those loud muffler. on the other hand, 4-strokers esp LC is much more silent
wow, those enkei '3-batang' rims is a rare item now. it also a hot item among thieves,
so becareful with them as I read somewhere that a guy lost his 125z. main attraction is of course his Enkei rims

Ermm convoy hor When when ?? if Penang i join :

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Added on June 12, 2009, 10:04 pm
Saran arr dont shave untill your head botak hor Just enough is good dont be greedy

Ei charge ur bike now got the knock knock knock enjine sound bo??? I will prefer 150cc bcuz it sound nicer when u say LC150 then LC160 lolz moreover its fuel consumption is lower ^^ Anyone here using 57mm block + 26mm carb??? Wat brand of block and carb recomended?? Ei saran ur 125z TS how much?? My fren de he say can go 140kmh nia, I already tried his bike accel dam song and the sound is dam GANAS..

Aiya, you modify like that of course la poket kering... what's the major problem after those mods?
Your LC now also you wanna mod block and head, same la bro. Good luck yo.

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Added on June 13, 2009, 12:38 am
30mm at the venturi or the slide area. That's the diameter of the airflow cross-section.

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Added on June 13, 2009, 12:41 am

my bike also same like urs, once travel for long distance, the bike become more powerful,but not so smooth when pedal

thx for the info bizzy, anyone else would like to share? i found it is annoying coz it is quite hard for me to start my bike, or sometime, after i start, it off itself again,have to restart again....