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

[krp]

how come mind is 900+ axa wanna buy spec3 some more do u guy think its weird?

 

 

KiNkY PiNkY

 

There are many factors involved in the price of an insurance cover - what party it is (first/third), age, NCD, type of bike.... There is no such thing as weird. Just change insurance companies if you feel its overpriced.

[slownsteady]

haha ur quaetion aldy say out the answer, replace the gasket then.

Ya i know must chg but wat will happen if i dont change? And price wise?

[KiNkY PiNkY]

There are many factors involved in the price of an insurance cover - what party it is (first/third), age, NCD, type of bike.... There is no such thing as weird. Just change insurance companies if you feel its overpriced.

 

hmm i check with asphoon if i take super 4 spec 3 my issurance axa fire n theft its about 670 then yesterday i go loo's motor same spec 3 axa fire n theft but 900 plus when i ask loo's to show the insurance list the sales man say no need to see the list lah i been selling bikes for years so i know whats the rate for insurance for your age

 

 

KiNkY PiNkY

[mfaisalby]

oooo... smell like carrot in d making.. lols... aiyah if he refused to show u.. den dun buy frm him.. more or less ltr u tio chop carrot..

[KiNkY PiNkY]

oooo... smell like carrot in d making.. lols... aiyah if he refused to show u.. den dun buy frm him.. more or less ltr u tio chop carrot..

 

lolz ok lor ^_^ thanks anyway

 

 

KiNkY PiNkY

[krp]

hmm i check with asphoon if i take super 4 spec 3 my issurance axa fire n theft its about 670 then yesterday i go loo's motor same spec 3 axa fire n theft but 900 plus when i ask loo's to show the insurance list the sales man say no need to see the list lah i been selling bikes for years so i know whats the rate for insurance for your age

 

 

KiNkY PiNkY

 

Why don't you call AXA yourself and ask...

[night_cavalry]

Yes, it's normal. The fan is activated by a temperature sensor and will come on when temperatures reach a certain level, whether or not the bike is moving or at a standstill. Sometimes the temperature is "just nice" when you are moving because the wind/air blowing through the radiator is sufficient to cool the coolant. When the bike comes to a standstill, there isn't much wind/air blowing through the radiator. So, the fan will be turned on.

 

BTW, it doesn't matter if you are riding a Revo, Spec 1-3 or a car. That's the way radiator fans work in general.

 

Thanks for the info ramsnake.

 

your the man

[vikzeng]

Dear fellow riders,

 

This is an appeal to look out for my Black super 4 revo FBE4488A. It was stolen (No Joke) from my HDB carpark at Blk 137 Lorong Ah Soo yesterday between 1600 to 2300. If seen on the road, do not hesitate to contact the police, or myself at 96949226. Your help is greatly appreciated!

 

Cheers

Vik

[4DToToBig Sweep]

Message Received~!

[ldslds]

As Revo is equipped with HISS technology, the bike wun be able to start without the right key with the right code, did you forget to take out your key and leave it with the bike? if not most likely is someone who might have the key (i.e previous owner if you are not the first) or bike shop if you forget to pay ur installments for some time.... if all of the above do not apply to ur case, the bugger could have spoil ur bike's HISS and use a duplicate key without the code

[gnk_dj]

hi guys i just passed my 2A and let go of my thought of buying a rvf and intend to buy revo and advice bros?

[mfaisalby]

hi guys i just passed my 2A and let go of my thought of buying a rvf and intend to buy revo and advice bros?

 

what kind of advice u looking at dude?

[Giggskills]

Pls help me solve my problem.

 

For a very long time now my spec2 has been "burning" my leg with the hot air it is emitting from the fan. i don't know how it started but i have tried cleaning carburetor and even installing a bypass switch to control the fan before it becomes too hot. But nothing is helping.

 

There was one i rode in KPE and the temp got so high that the coolant got drained out to the last bit. Was quite scary as it had the sizzling sound and all.

 

Everytime i change my spark plug, one of the plug will have VERY BLACK carbon on it. initially it was the no.1 plug and recently after cleaning and tuning my carburetor, it happened to the no.3 plug.

 

My bike is not smooth anymore. Feels like a 2B bike now. Sometimes i have to throttle alot to get the bike moving. It feels like it has no power but because i throttle so much, suddenly it will speed off.

 

When i start the bike in the morning, it has the "clang clang clang" knocking sound but it only sounds like that when it is in neutral gear. It will go off after kicking down to the 1st gear. Mechanic says that the gasket housing is loose and that its ok and normal. OK?? NORMAL?? the feel is gone man.

 

PLEASE SUPERFOUR friends. Help me save my sick bike.

 

1) why is my bike overheating?

2) Why only 1 of the spark plug is so badly covered in carbon?

3) Why is there the "clang clang" sound in neutral gear?

4) Why sometimes i have to throttle alot to get the bike moving?

 

Please dun tell me to sell my bike. Cos i love it too much to let go. I just want to cure it.

 

After trying all the methods, finally mechanic says maybe the coil got problem and has to change all 4 of it to see if the problem can be solved. He says he will find for me a 2nd hand one. I havent commit and would like to hear your view guys.

[krp]

hi guys i just passed my 2A and let go of my thought of buying a rvf and intend to buy revo and advice bros?

 

Rvf too old. Revo is good. But obviously alot of difference in machine price.

Edited January 30, 2012 by krp

[ramsnake]

hi guys i just passed my 2A and let go of my thought of buying a rvf and intend to buy revo and advice bros?

 

There is a thread for FAQs about the Revo. It is quite comprehensive and you will find most of your questions answered. If you have any other questions, do post at the dedicated Revo thread.

Click here for FAQs

[Metal_Heart]

That is not normal. Your coolant is boiling. I recommend you contact AhPek from the non-vtec section regarding you issues. He can help you pinpoint some problems. You go directly to shop sure get carrot chop.

[mild_slevin]

for cooling part,

is the pump working? (pump shall circulate coolant around the engine)

Any visible leakage?

Did you top up/check coolant?

Clog in coolant channel?

Thermostat working? (once temperature too high, thermostat open and channel coolant to radiator)

Clog in radiator?

[thrasher]

Did you remove your thermostat?

[Giggskills]

for cooling part,

is the pump working? (pump shall circulate coolant around the engine)

Any visible leakage?

Did you top up/check coolant?

Clog in coolant channel?

Thermostat working? (once temperature too high, thermostat open and channel coolant to radiator)

Clog in radiator?

 

 

Hi bro,

 

Nope, so far no visible leakage.

Yes have topped up coolant due to its drainage when it was heated up.

Not sure if there is a clog in coolant. How to check?

i suspect its the thermostat too. Did some research on the net on similar issue and they say it might be the thermostat. how do i get it checked?

Not sure if there is a clog in the radiator too..

 

 

 

Now that gives me a whole new solution to try out. Thanks bro.

 

Is there any recommendations bro? shop or person to look for who does not chop..

[Giggskills]

Did you remove your thermostat?

 

No bro, to my knowledge it has not been removed. Unless a bike shop i sent it to removed it without informing me.

[mild_slevin]

Hi bro,

 

Nope, so far no visible leakage.

Yes have topped up coolant due to its drainage when it was heated up.

Not sure if there is a clog in coolant. How to check?

i suspect its the thermostat too. Did some research on the net on similar issue and they say it might be the thermostat. how do i get it checked?

Not sure if there is a clog in the radiator too..

 

 

 

Now that gives me a whole new solution to try out. Thanks bro.

 

Is there any recommendations bro? shop or person to look for who does not chop..

 

Not sure if there is a clog in coolant. How to check?

(As I go through the service manual, there's path within the engine where the coolant flow. If there's clog the flow rate would be affected, one way I can think of forcing coolant in the opening and check how's the flow when the coolant exit from the path. The same thing might happen to the water hose as well)

 

i suspect its the thermostat too. Did some research on the net on similar issue and they say it might be the thermostat. how do i get it checked?

(As per manual, you can test the condition of the thermostat via boiling, it but you have to suspend the thermostat & thermometer not leaving it on the pan as it would falsify the reading. Thermostat react to certain temperatures, once operating temperature reach the valve would open, allowing coolant to flow. *I can't provide temperature details as the manual refer to other make of bike, but for your reference Thermostat begin to open around 80-84 degree celcius & fully open at 95 degress celcius. Valve lift, 8mm at its minimum. There's possibility that thermostat stuck closed, which mean valve not able to open during operating temperature OR thermostat remain open under room temperature.)

 

Not sure if there is a clog in the radiator too..

(You can disconnect all the hose connected on the radiator, try feeding the radiator with coolant at one opening. Check the flow of the coolant, if its dripping or interrupted flow. Check if there's leakage from the radiator while feeding coolant.)

 

Added info : Replace the radiator cap if it does not hold pressure, or if relief pressure is too high or too low.

 

Hopefully it helps.

[ramsnake]

@Giggskills

Sounds like you have 2 separate issues here. First is cooling system. @mild_slevin has already given the troubleshooting steps.

 

I would also add that it's not a good idea to have a fan by-pass switch. From your post, I understand that you fitted the switch so you can switch off the fan when your legs get too hot. If you do this, the engine will surely over-heat and you will end up spending more $ on repairs.

 

Another way to check if the coolant jackets in the engine block is leaking is to check your engine oil. Partially drain out some engine oil into a clean pan and look at the colour. If it looks like teh tarik, then there is a leak in the block.

 

Carbon on plugs

The other issue is your carbon build up on the spark plugs. You've mentioned that after cleaning and tuning your carb, your No 1 plug is ok. Now it's the No 3 plug.

 

Carbon build up is usually due to un-burnt fuel, in other words the carb setting for that piston is too rich. This would also account for the loss of power because when there is too much fuel, it won't burn properly. Poor combustion in one piston affects overall power output. After some time when most of the excess fuel is burnt, the spark plugs begin to fire properly in that piston again. That's why you'll suddenly feel the power being restored.

 

Did your mechanic service only that one carb or all four? Were the carbs synchronised/balanced? If not, I suspect doing this should solve the problem. Hopefully...

[ramsnake]

Carb Synchronisation

 

I haven't seen this gadget being used by local mechs. Guess that's why they say carb tuning is an art...

 

[Giggskills]

Hi ramsnake and mild_slevin

 

Gosh you guys sure know your stuffs. Im really thankful for the tips you guys have given me.

 

Im gonna get the stuufs that you guys mentioned, checked by the mech and get back to you guys with the result.

 

Hope i won't get chop too much for it though..

 

Thanks again guys...

 

Btw ramsnake the mech serviced all for carb.

[Giggskills]

Hi ramsnake and mild_slevin

 

Gosh you guys sure know your stuffs. Im really thankful for the tips you guys have given me.

 

Im gonna get the stuufs that you guys mentioned, checked by the mech and get back to you guys with the result.

 

Hope i won't get chop too much for it though..

 

Thanks again guys...

 

Btw ramsnake the mech serviced all for carb.