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

[FrdAuZ]

The funny thing happen on my

Bike again... Rpm 8

Cannot even open vtec and speedo go back to 0km/h...

 

Bike like stuck2, no petrol come in.. Throttle feels heavier..

 

All these happen during slight/heavy rain. Ans since my bike drop at cp.

 

Haizz.... Anyone got any idea y? I tot its one off thing but it happen occasionally..

 

I noe wats wrong already...

[sihan0110]

I noe wats wrong already...

 

what the problem and cause ? mind sharing ? thanks

[FrdAuZ]

My bike dropped stationary few days ago, this prob exist sometimes only, its gota do with wiring, ECM.. Those wires behind the headlight. Its loose due to impact of fall.

[m8nub]

wow,after reading this posts,im glad im not using a lv .

[FrdAuZ]

wow,after reading this posts,im glad im not using a lv .

 

Hi bro, gd morning, have a nice day and ride safe.

Edited July 17, 2010 by F|rdAuZ

[ayie125z]

any body know which bike shop open on sundays??

[pyro13]

My bike dropped stationary few days ago, this prob exist sometimes only, its gota do with wiring, ECM.. Those wires behind the headlight. Its loose due to impact of fall.

 

So isit the socket?? My socket was loose a month back and bike couldnt start a few times.. Jus rewire and shuld be ok.. How bad is d fall sia?? Till socket can come loose??

[FrdAuZ]

So isit the socket?? My socket was loose a month back and bike couldnt start a few times.. Jus rewire and shuld be ok.. How bad is d fall sia?? Till socket can come loose??

 

Which socket u talking about? Behind headlight ? Or engine kill switch?

 

Very bad ah ar.. Tank dented all..full impact at handlebar, crashbar and endcan.

Edited July 18, 2010 by F|rdAuZ

[at0m87]

Which socket u talking about? Behind headlight ? Or engine kill switch?

 

Very bad ah ar.. Tank dented all..full impact at handlebar, crashbar and endcan.

 

OH NO. the LV

[FrdAuZ]

Endcan many scataches already, it just add to the collection of scratches. LOL

[sihan0110]

Which socket u talking about? Behind headlight ? Or engine kill switch?

 

Very bad ah ar.. Tank dented all..full impact at handlebar, crashbar and endcan.

 

wow that very bad . i recently drop my bike . lucky no damage . manage to support the bike and slowly put on the floor .

 

but very hard to start after that . petrol from the carb flow out . have to maintain throttle when start the bike

[FrdAuZ]

Yeah usually will take few starts or few minutes then can start.. I dunno hoe long my bike been in dropped position also... Face same situation as u when waba start. Its normal.

[LXY]

bro where u change the spark plug and how much does it cost?

 

is a service package together with EO, oil filter, spark plug, coolant..

[LXY]

wow that very bad . i recently drop my bike . lucky no damage . manage to support the bike and slowly put on the floor .

 

but very hard to start after that . petrol from the carb flow out . have to maintain throttle when start the bike

 

why need to maintain throttle when start bike?? isit too much fuel or too little fuel in the carb causing it? cuz i sometime need to open abit while start the ignition..

[LXY]

anyone face problem on fuel cork?? when bike too long nv start or weather cold start bike, can hear the engine sound not smooth, like something don't flow smoothly, i rev and rev still die off.

[sihan0110]

why need to maintain throttle when start bike?? isit too much fuel or too little fuel in the carb causing it? cuz i sometime need to open abit while start the ignition..

 

the petrol in the carb flow out . than no petrol in the carb to start . that why maintain throttle to let the petrol flow in . if never throttle u only can heard the electric start sound but engine wont start . but normally start bike not need . only that time drop need to maintain .

[pyro13]

Which socket u talking about? Behind headlight ? Or engine kill switch?

 

Very bad ah ar.. Tank dented all..full impact at handlebar, crashbar and endcan.

 

Yeap.. The headlight socket.. U have any headlite cut off switch??

[FrdAuZ]

Nope bro my headlight remains on, and yeah if ur headlight sockets **** up, bike cant run or start.. If i not wrong..

 

The wires in the socket loose.. But i lazy to troubleshoot.. Haha... Cos i ask a mech he said that is the problem..

[ifourdesign]

Check your battery. Weak already?

 

 

How to check for spec 1?

My friend say at start of bike, if RPM needle goes up n down, batt okay.

[blackness]

Yeah usually will take few starts or few minutes then can start.. I dunno hoe long my bike been in dropped position also... Face same situation as u when waba start. Its normal.

 

Same here, my bike fall before. At that time i dunno why cant start, almost wanted to try push start, lucky i called Thomas (s4vtec) and he advised me to hold throttle wide open for a while to allow fuel to flow back in, and press start

 

the fall caused my right hand brake lever to break and i had to ride home just using my rear brake. scary

[pyro13]

Nope bro my headlight remains on, and yeah if ur headlight sockets **** up, bike cant run or start.. If i not wrong..

 

The wires in the socket loose.. But i lazy to troubleshoot.. Haha... Cos i ask a mech he said that is the problem..

 

i went to republic to replace my socket straight.. cost me 12 bux

[LXY]

the petrol in the carb flow out . than no petrol in the carb to start . that why maintain throttle to let the petrol flow in . if never throttle u only can heard the electric start sound but engine wont start . but normally start bike not need . only that time drop need to maintain .

 

thanks for sharing with me..what if engine can get start but not enuff of petrol flow in to carb, then wad wrong with it?? i dunno man!!

[sihan0110]

thanks for sharing with me..what if engine can get start but not enuff of petrol flow in to carb, then wad wrong with it?? i dunno man!!

 

bring to a mechanic to check ? too many thing to list out that will cause that problem .

[FrdAuZ]

i went to republic to replace my socket straight.. cost me 12 bux

 

Its that cheap?didnt know that.. Thanks for sharing bro..

thanks for sharing with me..what if engine can get start but not enuff of petrol flow in to carb, then wad wrong with it?? i dunno man!!

 

 

What do u mean by not enough petrol go to ur carb? Can explain more detailed?

[Iceachilles]

thanks for sharing with me..what if engine can get start but not enuff of petrol flow in to carb, then wad wrong with it?? i dunno man!!

 

Your idling speed is it? Is it that you meant? After you start the bike, observe the idle point. Vtec1 to 3 should be ard 1000~1300rpm depending. I prefer 1100~1200rpm. After warm up is diff so dun set too high. If keep dying set high and wait for 3~5 mins and let it settle, check the rpm and re-adjust accordingly but becareful not to burn your hand. If unsure or still cannot safer to bring to motortiam. Do you smell alot of petrol fumes ard your bike?