bro, both FZ150i & R15 have SOHC 4 valves head... (actually.. basically same engine)

I read somewhere, the R15's ECU is tuned for higher output (at higher rpm)

FZ150i's torque curve is more flat, so high end power is sacrificed a bit

ini mana dapat punya facts?

FZ16 lagi low-tech dari FZ150i. besides, single valve macam mana mau function?

both FZ150i & R15 is equipped with electronic fuel injected (EFi) 150cc single-overhead-cam (SOHC) liquid-cooled with quad-valve (that's 4 valve, for those that don't know) engine. the difference between FZ150i & R15 is mainly the gearbox (FZ150i's 5-speed and R15's 6-speed) and power band due to R15's different configuration on the valves & camshaft. that's why you can see the "LC4V" label on FZ150i, R15 & LC135 coz all of them are Liquid Cooled 4-Valve.

FZ16 only has 153cc, twin-valve (yes, that's two less than FZ150i & R15) SOHC engine, air-cooled (like most kapcais like EX5 & Lagenda) and still have carburetor to manage it's air-fuel mixture.
CBR150R with EFi? the latest one, yes, but not sold in Malaysia. the old one (yeah, the "slim" one) is still using carburetor but it does have double overhead camshafts (DOHC) hence more power with a considerably good fuel consumption.

Bajaj Pulsar? the brand Bajaj alone was never here in Malaysia

ya 6 speed short ratio better acceleration & can stretch out a bit more top speed with the slightly higher hp at high rpm..

but but, R15 & FZ150i's engine are really very identical telur (的咯), I bet even the injection system are the same... how can no one possibly know how to repair worr, may be they don't know wtf is R15? may be only when they strip the engine parts only they know the similarity....

heck even 135LC's engine is similar to FZ150i's

the rest I don't have much comment liao... don't know much....

oh... I thought same because the difference of max output is marginal ... so to extract extra 1hp from 150cc engine.. requires more than I thought

yup yup I am aware of that.. similar but not identical...
those 135LC may be running 62mm or even bigger bore block... O_O plus high cam & bigger carb... & lightweight kapcai chassis... those things can be pretty quick

hahahaha

actually EX5 has high resale value loh here in M'sia... especially the pre-thailand batch

& bike thief's primary target

carburetor might provide higher output due to higher flow of fuel, hence the higher rate of combustion. fuel injection on the other hand are designed for fuel efficiency, so that's pretty much explains.

and yes, chassis weight does contribute to performance as well. I admit my FZ150i can't overtake the new 5-speed 135LC, and I think that carburetor and relatively lighter chassis compared to FZ150i helps a lot.

what to do. both v1.0 & v2.0 R15 are made & assembled in India. at least Singaporeans are lucky enough to have them officially in the market, unlike Malaysia. but I can see more and more FZ150i owners here converted their bike to R15, with parts ordered directly from Yamaha India

time to upgrade to a cb400 then.

my one-year-old FZ150i just passed the 30k km mark. not a problem at all. just do regular oil change & also others like oil filter, air filter, spark plug, coolant. my bike is not just an everyday beater, but I also "lenjan" it every now and then. done a few long distance trip as well like Kuala Kangsar & Kuala Terengganu

yeah, in stock condition around 120kmh still no vibration. around 130-140kmh you can feel the engine is "meraung" already. maybe it's nearing it's limit. by that moment the rpm is usually around 9.5k