[Q&A] SBF CB400 Official Q&A Thread 2009 (PLS ASK YOUR QUESTIONS HERE!)

[dragonforce]

Recommended Servicing Intervals

Note: Figures shown are estimated only and may vary.

 

- Check Tyre Pressure: 1 week

- Check Tyre condition: 1 week (can be done together with checking tyre pressure)

- Check Coolant level: 1 month

- Check Brake pads: 1 month

- Check clutch cable: 1 month

 

- Replace Engine Oil (Full Synthetic): 5,000KM

- Replace Oil Filter: 10,000KM

- Replace Spark Plugs: 20,000KM

- Replace OEM Air Filter: 20,000KM

- Replace Coolant: 1 year

- Replace Radiator Cap: 1 year

- Replace Rectifier: 2 years

- Replace Battery: 2 years

- Replace Magnetic Coil: 2 years

- Replace Clutch Plates: 50,000KM

 

- Service Carburetor: 50,000KM (figure varies depending on riding conditions, fuel used)

- Service KNN/BMC/high flow Air filter: 20,000KM

- Service Fork: 2 years

- Service Shock: 4 years

 

it is a sticky thread..

[Darkness19]

hey guys,can i check wat is the problem if my handle bar will auto sway to left side when i let off both my hands

[econbizer]

i changed my valve to those "L" shape type. makes pumping tires so much easier. and no need to fear burning urself with the exhaust when u reach in to pump.

 

Hi dude, where did u do the switch n how much?

Quite troublesome right? to change the value inlet, did ur mech take out ur rear tyre?

[s4vtec]

Hmm, never been to Caltex. I'll try to recce around nevertheless. Thanks for the info!

 

 

 

How much does it cost to change to these?

 

Hi dude, where did u do the switch n how much?

Quite troublesome right? to change the value inlet, did ur mech take out ur rear tyre?

 

confirm need to remove tyre from bike. i replaced mine at HKL when replacing tyres... cost 5bucks a piece...

[econbizer]

confirm need to remove tyre from bike. i replaced mine at HKL when replacing tyres... cost 5bucks a piece...

 

Thanks for the info dude!

[loyjwe]

can any1 tell mi probably wat can be the problem if my fan very fast on. just flushed my coolant and only abt half hour ride, half of the ride is on highway, den it will on le. what could be the problem? any1 got any clue?

[hairi007]

[Q] Hi guys, I just bought a battery from LAB its yuasa ftx9-bs 12v....izit suitable for S4 spec1 ?? I manage to use it to start the bike but i don't seem to fit the battery compartment....any1 can enlighten me..

[hairi007]

testing 1 2 3

[turbocharge]

[Q] i very long nv drag my spec 3. jus now when i drag till 13k rpm it backfire loudly and like sudden lose of power for 1 sec.

im using stock exhaust and its the 1st time i ride until backfire, and very loud.

is it normal?

[aixin]

any one know where to get gd n cheap front disk brake for super 4 vec3..?

 

LAB replacement for good one is 18dollar per side (front) - 36 dollars per pair (front). They provided me the choice of both 15 dollar and 18 dollar then, and strongly recommended me to change it with a better one, that is 36 dollars per pair one.

[loyjwe]

brake disk 18??

[MUSHA]

[Q] i very long nv drag my spec 3. jus now when i drag till 13k rpm it backfire loudly and like sudden lose of power for 1 sec.

im using stock exhaust and its the 1st time i ride until backfire, and very loud.

is it normal?

 

Excessive fuel probably escapes in the headers. If it's just one time, i would take it as normal. But for that sudden lost in power, u drag to 13k rpm, it already rev cut, not?

[MUSHA]

[Q] Hi guys, I just bought a battery from LAB its yuasa ftx9-bs 12v....izit suitable for S4 spec1 ?? I manage to use it to start the bike but i don't seem to fit the battery compartment....any1 can enlighten me..

 

Is the battery number the same as your old batt? If not, get it change at LAB.

[MUSHA]

can any1 tell mi probably wat can be the problem if my fan very fast on. just flushed my coolant and only abt half hour ride, half of the ride is on highway, den it will on le. what could be the problem? any1 got any clue?

 

When you stop and the engine is hot, fan will on lah. Highway time probably won't on but how could one see if it is on or off on the highway. If it on, better than it won't on.

[loyjwe]

highway time is not on coz when just exit highway and stopped, its not on, but mayb 2 more red lights will on le. whole journey mayb only 20-30mins. thought vtec's fan should not on so fast 1?

[eedwinn]

How do you guys see if the fan is on or off?

[loyjwe]

for mi i can see on my voltmeter its dropping by alot. generally u can see from certain angle if u are not sitting on the bike its right behind the radiator. if u sitting on the bike, just put ur hand near behind the radiator when staionary u will be able to feel fan blowing.

[MUSHA]

highway time is not on coz when just exit highway and stopped, its not on, but mayb 2 more red lights will on le. whole journey mayb only 20-30mins. thought vtec's fan should not on so fast 1?

 

When it need to on, it will on lah... Some S4 even have a switch to make it permanently on for better cooling but of coz your fan will kaput faster lah.

[MUSHA]

How do you guys see if the fan is on or off?

 

I oso don't know. For me, as long as the bike got no temp light on can liao.

[loyjwe]

really ar. coz i thot vtec fan shdnt on so fast. thot mine is consider very fast le. anyway thanks

[thepunkz]

hey guys, needa ask anione using gpr brake hose?

any feedback on it?

[eedwinn]

Hi guys, there's something weird about my bike.

 

Whenever I rode for some time and switch off the engine for say 15 minutes, it gets quite difficult to start again. The cranking sounds weaker after few attempts.

 

Ironically, it starts up easily every morning with just 1 push of the starter. Anyone knows why is that so?

[loyjwe]

wah. urs is directly opposite of mine. mine is morning need at least 3 or 4 crank but if onli awhile or few short hours, 1 crank can le. haha. see if any1 can provide u a solution den it will be opposite for mi. haha

[adyra]

Hi

 

Anyone can suggest to me battery details for s4 spec1??

 

this is from my spec 3

 

sorry for the blur pic

[slutgarden]

Q : when i warm up my bike, one of the headers do not get warmed up at all. the 2nd header from the right..

it is only after i ride for a few km, or sometimes need to open vtec then that particular (or all) headers will be hot..

the other time , when i change spark plugs, one of the spark plugs are wet, not water but kinda oily substance..

so could that 'wet' spark plug be the cause of the unwarmed header?.

well it's not that the headers warmth that is important, but, my idiling is nonsense..

i need to rev it like 1 - 2 k to get it warm up, and it's running on 3 spark plugs i suppose since one of the header never gets warm during cold start..

will there be any harm on riding on 3 spark plugs btw?.