one of the reason of holed piston caused by too lean air-fuel mixture which lead to too perfect burns in piston, leading to higher temp and pressure inside the piston. for those who change their exhaust and remove airbox/filter need to be careful on this.

this also happened to my big bro RXZ few years back...

Wawawa so change exhaust and remove air filter is harmful to our piston lo right??? Btw i juz saw a nice exhaust pipe at mudah here is the link http://www.mudah.my/Yoshimura-Muffler-For-LC135-3412315.htm it is written there Yoshimura (but i think it is more like pirated or cetak rompak one), one more question here, how long will it takes to change valve spring?? And when changing the valve spring do nid to change EO again?? Wat brand de valve spring is recommended??? Cuz after SPM might get rextor so muz do some ''homework'' ^^ the rest i dun wan change d bcuz they are dam pricy and easily spotted during blocking..

I think lc second edition meter is more accurate than the first edition. Anyone can comment.

i think the one that got scratched is the wall of the engine block, not piston. anyway, if piston got hole, then you could see a lot of white smokes come out from the exhaust, since the engine oil is burnt together with the petrol in the engine block. but if the hole is too big (size about 10-sen coin), then the engine will stalled and eventually turned off. when that happen, you're in serious mess mate

yeah, but with proper carb tuning, I don't think so. for street aftermarket muffler (not those racing or hi-performance), the chance for the holed piston (or we called it piston bobos in bahasa) is small.

correct me if i'm wrong

yup, proper tuned carb will actually solve this prob. and we as rider also need to be tame with our machine. dont just belasah until damaged...

thanks bro!
uhmm what do u mean by "use cheaplak engine oil. full synthetic oil dont play." u mean dont use full synthetic oil? why? i tought its good for the engine and all the inside parts.

engine block and carb isnt easy to spot during blocking ma unless they put their ear close to ur engine la hahaha

its most probably due to low viscosity of the fully synthetic oil (too cair)... so higher revs can cause scratches on block if in running in period... but cheap engine oils hav higher viscosity but wont last long... need regular oil change.. correct me if m wrong

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Added on July 15, 2009, 7:40 pmbro, the muffler is 100% fake... so dun waste ur time... lol.... bout changing valve springs... requires removal of the head... so need EO change n minimum of 2 hour time for installation n setting... go for trusted brands like BRT, TDR, ride-it, etc...

This post has been edited by saranjeevi: Jul 15 2009, 07:40 PM

coolant also right?

for me more than 2 hr when the shop is crowded

guys....today...my machine just hit 160^^ so happy man...

congratulation

plus need to remove whole coverset from head to tail.
coolant also will leak out, if leak a lot then need to top up..

haih, so trouble to open up LC's engine

O u mean valve spring go for BRT, TDR or ride-it right?? Btw wat is the difrent between tis 2 Rextor CDI?? 1) http://www.mudah.my/Rextor-adjustable-cdi-3449105.htm 2) http://www.mudah.my/Rextor-digital-cdi-3449104.htm

This post has been edited by bizzy123: Jul 15 2009, 08:51 PM

full synthetic oil is too thin to make the piston ring to 'match' the block nicely in order to form a good seal. A lot of engine oil developer has a new product called 'break in oil', specially to run in engine, so that we can achieve higher torque and horsepower in future.

This post has been edited by charge-n-go: Jul 15 2009, 09:42 PM

That muffler on mudah looks like my NOB1 exhaust. I suspect its a NOB1 exhaust with carbon and yoshi sticker

i got into xcdent
my pipe bengkok
so i consider to chnge pipe
which pipe u all recommend?

change yoshimura.

nope, it's not a NOB1 muffler but just a 'real' fake yoshi muffler.
saw and checked it once, the yoshi tag is not a sticker but more to metal plate.

Penangitez this sunday morning i'll be goin for a round island trip with a bunch of CB 100's, Honda C70 & some Kawa KSR friends.

Anyone interested?

organize one near negeri sembilan pls................

coolant no need change la.. jz use back wit addition of lil bit of water..

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Added on July 16, 2009, 6:29 amboth of tis cdi is meant for Lagenda... n nt LC...

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Added on July 16, 2009, 6:31 amThis post has been edited by saranjeevi: Jul 16 2009, 06:31 AM