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

[Ah Pek]

Hi all newbie here. Want to ask how much does a K&N air filter cost?

 

Those made from else where is about $70 t0 $75.

 

Made in USA is $120.

[Ah Pek]

I wish to change my riding posture to slightly more straight up.

 

That's fine.

 

Now if i sit straight up, my elbows are totally locked holding to the handlebar.

 

That's not right and unsafe..much with driving, you have to have some elbow bending.

 

So my question is...

 

1) Will changing to an aftermarket handlebar help to change my riding posture?

 

Yes and no.

 

2) Will there be any handling problems with aftermarket handlebars?

 

Yes and no.

 

(I'm aware that most aftermarket handlebars are slightly wider... but i think i can live with that in exchange for a more upright riding posture.)

 

Recommendation..get one that closes fit the width of your bike..there's is a reason its design that way and comes with the bike. Try releasing the handle bar clamps and rotate the handle bar direction that suit you first. In your case, it sound more like bringing it 'forward closer' to you.

Other option is to get a handle bar "riser"...not cheap though.

[Refugee]

I wish to change my riding posture to slightly more straight up.

 

That's fine.

 

Now if i sit straight up, my elbows are totally locked holding to the handlebar.

 

That's not right and unsafe..much with driving, you have to have some elbow bending.

 

So my question is...

 

1) Will changing to an aftermarket handlebar help to change my riding posture?

 

Yes and no.

 

2) Will there be any handling problems with aftermarket handlebars?

 

Yes and no.

 

(I'm aware that most aftermarket handlebars are slightly wider... but i think i can live with that in exchange for a more upright riding posture.)

 

Recommendation..get one that closes fit the width of your bike..there's is a reason its design that way and comes with the bike. Try releasing the handle bar clamps and rotate the handle bar direction that suit you first. In your case, it sound more like bringing it 'forward closer' to you.

Other option is to get a handle bar "riser"...not cheap though.

 

Thank Ah Pek for your reply.

 

i think i'll rotate the original handlebar towards me first and try again

 

[kyojo]

Those made from else where is about $70 t0 $75.

 

Made in USA is $120.

 

okay thanks alot.

[FrdAuZ]

WP brake pads are good anot? how much at motortiams?

[lutein]

Hi there, I need some help in pinpointing the problem. Would appreciate any input.

 

Bike: Spec 1

Vtec: 7K rpm

 

Problem: When rpm approaches 7K (Vtec), the engine sound starts becoming very rough. There is also some resistance in crossing over the 7K. Engine doesn't respond to normal throttle input; I have to really open the throttle to push the engine to open the Vtec.

 

This is a fairly recent problem (2 weeks). I got this bike in March. I do not know if the previous owner had done any servicing of the carbs recently.

 

Would like to know if this is something that can be DIY or do I have to bring the bike to the shop? And if shop, can recommend a good bike shop? Good as in can do the job properly.

 

Thank you.

[FrdAuZ]

Hi there, I need some help in pinpointing the problem. Would appreciate any input.

 

Bike: Spec 1

Vtec: 7K rpm

 

Problem: When rpm approaches 7K (Vtec), the engine sound starts becoming very rough. There is also some resistance in crossing over the 7K. Engine doesn't respond to normal throttle input; I have to really open the throttle to push the engine to open the Vtec.

 

This is a fairly recent problem (2 weeks). I got this bike in March. I do not know if the previous owner had done any servicing of the carbs recently.

 

Would like to know if this is something that can be DIY or do I have to bring the bike to the shop? And if shop, can recommend a good bike shop? Good as in can do the job properly.

 

Thank you.

 

Try wash carb?

[matkental]

WP brake pads are good anot? how much at motortiams?

 

$25 at unique. same price for gold fren but they say lesser brake dust.

[Rf83]

ANyone knows any shop that fix dents on tanks?

 

I went to Kallang Bahru but the service no more there..

 

Thanks peeps

[kyojo]

Hi all. Just got my spec3 two weeks ago. When my rpm is at 6 which is before the valve open what should be the speed? Mine is about 95-96 km/h. Is this normal?

[loyjwe]

any1 knows wats the cause for the problem?

 

sunday i rode from sengkang to tampines less than half hour, speed not exceeding 120.

 

when i reach my place, huge amt of coolent was leaking out from the tube, boiling.

 

its ard 7pm so i rush to nearby shop lucky to find 1 tat is open. but the thing is the shop is not open, its the mechanic is helping his friend there only.

 

we open up the right side cover and coolent reservoir is boiling with bubbles popping.

 

after stop engine and open reservoir cap, awhile later reservoir totally dry up.

 

opened main coolent tank infront and he said it was empty tats y hot air keep rushing to reservoir. is it true?

 

he filled with water for me and i only ride back to sengkang. i didnt ride today.

 

he say mayb is fan spoil tats y coolent too hot and dry up. is it this way?

 

any1 knows wats the problem? if its the fan how much to repair?

 

 

thanks

[tangmulong4488]

 

when i reach my place, huge amt of coolent was leaking out from the tube, boiling.

 

radiator cap

[loyjwe]

my radiator cap is new and my coolent is not leaking from the main there. its from the tube from the reserve reservoir.

[Refugee]

Hi all. Just got my spec3 two weeks ago. When my rpm is at 6 which is before the valve open what should be the speed? Mine is about 95-96 km/h. Is this normal?

 

mines vtec1.... riding at 6K Rpm is about the same 95km/h.

[Ah Pek]

any1 knows wats the cause for the problem?

 

sunday i rode from sengkang to tampines less than half hour, speed not exceeding 120.

 

when i reach my place, huge amt of coolent was leaking out from the tube, boiling.

 

its ard 7pm so i rush to nearby shop lucky to find 1 tat is open. but the thing is the shop is not open, its the mechanic is helping his friend there only.

 

we open up the right side cover and coolent reservoir is boiling with bubbles popping.

 

after stop engine and open reservoir cap, awhile later reservoir totally dry up.

 

opened main coolent tank infront and he said it was empty tats y hot air keep rushing to reservoir. is it true?

 

he filled with water for me and i only ride back to sengkang. i didnt ride today.

 

he say mayb is fan spoil tats y coolent too hot and dry up. is it this way?

 

any1 knows wats the problem? if its the fan how much to repair?

 

 

thanks

 

You got tap water inside now..better drain and replenished with proper coolant. Your coolant boiled...when was the last time you did your coolant changed and what was used..mixture by mototiam?

 

Do you know how to ground your fan to check it? If not, pm me.

 

You amy have problem with thermostat, the fan or coolant pump..or more then one of this. Did your temp lights comes on before the coolant spilled?

[Ah Pek]

Hi all. Just got my spec3 two weeks ago. When my rpm is at 6 which is before the valve open what should be the speed? Mine is about 95-96 km/h. Is this normal?

 

If your eo is good, should be at 100 or so at 6k rpm generally.

[Ah Pek]

my radiator cap is new and my coolent is not leaking from the main there. its from the tube from the reserve reservoir.

 

This is okay where the leak comes from as its the overflow tube from the reserve tank. However it shouldn't have boiled till such a stituation..unless u filled it up too full or a bad theromstat or coolant pump problem. The fan should have turn on by then.

[Ah Pek]

Hi there, I need some help in pinpointing the problem. Would appreciate any input.

 

Bike: Spec 1

Vtec: 7K rpm

 

Problem: When rpm approaches 7K (Vtec), the engine sound starts becoming very rough. There is also some resistance in crossing over the 7K. Engine doesn't respond to normal throttle input; I have to really open the throttle to push the engine to open the Vtec.

 

This is a fairly recent problem (2 weeks). I got this bike in March. I do not know if the previous owner had done any servicing of the carbs recently.

 

Would like to know if this is something that can be DIY or do I have to bring the bike to the shop? And if shop, can recommend a good bike shop? Good as in can do the job properly.

 

Thank you.

 

DIY - take off your tank and check the status of your pair of throttle cable..could be almost broken at the point where its link to the carbs actuator. If not, try cleaning your air filter and carbs ($25-$30).

[kyojo]

If your eo is good, should be at 100 or so at 6k rpm generally.

 

Oh okay. Cause its hard for me to maintain 100 km/h as my rpm will over 6 and my vtec will be opened. Shall try changing eo and see again cause currently my eo is semi syn. Anyway thanks ah pek and Refugee for your reply.

[bear4]

[Q]

 

Hi,

 

My starter is broken. Does anyone know if a CB-1 (Or any other bike) starter will fit a 2001 Super Four VTEC NC39 X Model?

 

Thanks.

[Ah Pek]

Oh okay. Cause its hard for me to maintain 100 km/h as my rpm will over 6 and my vtec will be opened. Shall try changing eo and see again cause currently my eo is semi syn. Anyway thanks ah pek and Refugee for your reply.

 

Just got words from two Vtec 3 riders that at 6k rpm..they get 110km/hr.

[tiku]

Just got words from two Vtec 3 riders that at 6k rpm..they get 110km/hr.

 

wah... then my spec 2 like gt some prob...kyojo.. mine 6krpm onli 95km\h although my 5krpm give me 80km\h(which is common to me)

[kyojo]

wah... then my spec 2 like gt some prob...kyojo.. mine 6krpm onli 95km\h although my 5krpm give me 80km\h(which is common to me)

 

haha mine also like tat lei. But mine is spec 3. Jia lat alr lor. Think mine really got prob. What could be the possible reason for this? anyone?

[kyojo]

Oh yah still got something else to ask.. the fan for spec3 isit behind the radiator? then when will it start running? once i start my engine or when the engine gets hot then it'll auto on?? thanks..

[dragonforce]

Oh yah still got something else to ask.. the fan for spec3 isit behind the radiator? then when will it start running? once i start my engine or when the engine gets hot then it'll auto on?? thanks..

correct me if i am wrong, there's a thermostat to sense the heat so when your bike is hot it will auto on.. unless you remove that then it will be on all the time..