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

[HaiR1]

Hi guys, i'm riding a Spec2 and would like ask if anyone have had experienced the following,

 

1) Batt is brand new. Rectifier is brand new. When riding, can see voltage fluctuating from 11.8v to 13.1v on voltmeter so i assume should be charging but as each day pass by, i see voltage on the voltmeter seems to be depleting at idle voltage around 11.8v to 10.8v. I use multimeter to check...voltage is around 12v. What could be the problem?

 

2) Whenever i depress brake, the idle drops really low. Sometimes feels like it's going to stall. Any ideas what could be the issue?

 

3) Any ideas where could be the leak?

[ATTACH=CONFIG]304904[/ATTACH]

 

Thanks.

 

 

 

(1)

New battery been charged before install?

New Rectifier is Ori Honda parts?

What about your Magneto Coil? What's the condition ?

This 3 item go hand in hand.

Use multi meter n check on idle.

Dnt trust voltmeter as it May not be accurate

If there is, it shud be tap frm battery not elsewhere as it may not show your battery voltage.

 

(2)

Check/ Synchronise your carb, else maybe something gotta do with your carb,

I can reccomend someone on this

 

(3)

Leak depends on where it is..

If not engine oil, it May be coolant.

Trace the source close up to confirm

[MaverickRD]

Evening guys,

Any idea if theres any bike shop open tml?

My friend revo might be leaking oil n coolent plus its idleing is nt consistant.

Thx...

 

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[Cb4sfour]

Need to know for cb400 spec 2, to switch on the choke do we have to pull or push the lever?

[HaiR1]

Need to know for cb400 spec 2, to switch on the choke do we have to pull or push the lever?

 

Pull .....

[ajitos]

Hi guys need recommendation for which shop to convert my spec 1 to spec 3 tail sprayed 3 colour for good workmanship & price?

[Cb4sfour]

Thanks HaiR1!

[ColdWarCrisis]

anyone here have a s4 vtec1 service/workshop manual?

[pyro77]

Would converting a normal super4 to a cafe racer be an easy project?

 

How much would it roughly cost and where can I do it?

[pyro77]

Would converting a normal super4 to a cafe racer be an easy project?

 

How much would it roughly cost and where can I do it?

[freebird]

Would converting a normal super4 to a cafe racer be an easy project?

 

How much would it roughly cost and where can I do it?

 

To respray a super4 with a different colours cost at least 400 and above.

[freebird]

Hi all

 

my spec 1 when in gear, cant start even when i clutch in, normal?

 

If your stand is down, you can't start the engine.

[freebird]

I recently found out there dots of black liquid on the floor below my bike. Something is leaking but i can't pin point where the leak is from. Anyone experienced this before? And how much is the damage?

 

Might be coolant leaking too.

[jayz]

If your stand is down, you can't start the engine.

 

My stand aint down

 

When i stall, clutch in first gear cant start engine

 

Got an issue today, found some liquid leaking from the radiator hose in front, already tried tightening the philip screw clam, will monitor

 

Pray hard

[Cb4sfour]

How often do you guys to up your coolant? It seems that my cb400 drink alot.

[justforme]

How often do you guys to up your coolant? It seems that my cb400 drink alot.

 

almost never. if drink alot could be leaking from somewhere. previously my coolant tubes were leaking cauz the clamp was not fully tightened. maybe you could check yours. any coloured stains would tell you where the coolant is leaking. if not then probably is ur coolant bottle not closed properly.

[justforme]

Hi guys, i'm riding a Spec2 and would like ask if anyone have had experienced the following,

 

1) Batt is brand new. Rectifier is brand new. When riding, can see voltage fluctuating from 11.8v to 13.1v on voltmeter so i assume should be charging but as each day pass by, i see voltage on the voltmeter seems to be depleting at idle voltage around 11.8v to 10.8v. I use multimeter to check...voltage is around 12v. What could be the problem?

 

2) Whenever i depress brake, the idle drops really low. Sometimes feels like it's going to stall. Any ideas what could be the issue?

 

3) Any ideas where could be the leak?

[ATTACH=CONFIG]304904[/ATTACH]

 

Thanks.

 

looking at the photo it looks exactly like what happened to mine. and it was due to coolant pump leaking. to double confirm, start your bike and hold your rev around 3-4k. once the bike starts to heat up the pump should kick in. if it is the pump you should see the coolant leaking from the bottom of the pump and could be leaking quite abit.

[Cb4sfour]

almost never. if drink alot could be leaking from somewhere. previously my coolant tubes were leaking cauz the clamp was not fully tightened. maybe you could check yours. any coloured stains would tell you where the coolant is leaking. if not then probably is ur coolant bottle not closed properly.

 

 

There's no stain and sign of leaking. I think my mechanic does not bleed my coolant properly because I did sent my bike for coolant flush. But thanks anyway justforme, i'll still monitor my coolant.

[Ah Pek]

There's no stain and sign of leaking. I think my mechanic does not bleed my coolant properly because I did sent my bike for coolant flush. But thanks anyway justforme, i'll still monitor my coolant.

 

If this is the case..replace your radiator filler cap..likely the rubber seal is crack, harden and worn and coolant vapors is escaping from there under the tank where u can see. Go LAB buy a 1:1 radiator cap..cheap cheap.

[Cb4sfour]

If this is the case..replace your radiator filler cap..likely the rubber seal is crack, harden and worn and coolant vapors is escaping from there under the tank where u can see. Go LAB buy a 1:1 radiator cap..cheap cheap.

 

It's working fine now. If not, i have to refill every two days and only happen twice. The third time it doesn't drop to below the lower level. I'm traveling same distance everyday. Thanks, next time i'll know where to check if the problem still persist.

[Siphon]

Hi bros, newbie S4 rider here... Any revo riders here experice some knocking sound? Very subtle but can feel it go Tok Tok Tok.... Only at idle can hear... Bike is less than 2k km....

[Cb4sfour]

Hi bros, newbie S4 rider here... Any revo riders here experice some knocking sound? Very subtle but can feel it go Tok Tok Tok.... Only at idle can hear... Bike is less than 2k km....

 

Maybe you can tell us where the sound came from? I suspect that it could be your chain.

[foccacia]

Hi bros, newbie S4 rider here... Any revo riders here experice some knocking sound? Very subtle but can feel it go Tok Tok Tok.... Only at idle can hear... Bike is less than 2k km....

 

Suspect could b EO not enough

 

 

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[wht3fr3]

anyone here know whr can i get carbon fibre tank and side cover?

[tthiang]

Good morning all,

 

I need to respray just my fuel tank for vers s because of bad peel handled over by the previous owner. Anyone can recommend a shop and cost pls. Thanks a lot.

[MSC7X]

Q: While riding on the e'way (constant speed) my meter gauge shut off (needle goes to 0) & HISS lights start to blink. Then the both needles went up and down (like when turning on ignition). This keep happening while riding. When I got off the e'way and change to lower gear..engine suddenly shut off and can't start...No battery. Only after a "push start" can the bike be started. After reaching destination (abt 2mins later), I switch off and ON via ignition and the bike can start normally. Anyone has any idea what may cause this ??.