Tunning Carb

[hachi]

U might wan to clean air filter first.

[spectral77]

i just tuned my carb but the needle still siao siao anyhow jump leh.

[superpig]

Originally posted by spectral77@Jun 7 2005, 02:20 PM

i just tuned my carb but the needle still siao siao anyhow jump leh.

think the tuning got problem wor... if not ure RPM needle sot liaoz...

[Dare Devil]

btw where's hkl n how much is for the tuning n how much is the filter... Thanks for all your help..

 

cheers

Ron

[VteCFreaK]

about this tuning.. when do we know we have to do it? my rpm meter is jumping about 0.5 only. Do i need to tune it or that is still ok?

[Dare Devil]

yup:cry:

[Wayang]

izit normal for the tacho needle to be movin a tiny bit when the engine is idling ? those ppl who sync ur carbs recently.. r ur idling dead steady one.. needle not movin at all ?

[kaginah]

mine moves abit...

[lindavw]

moving alittle is normal one la...

unless moving up n down from 800 to 1.5 like that then need to tune again la. but if u r rich got $$$ moving alittle oso can tune... but will feel no or little diff only lor hahahaha

[LollyPoP]

ha... HKL cannot go there service bike de lah.

go there buys oils & parts is betta.

 

the onli shop in Bt Merah area which can do e job well is onli 'Unity'.

can't say they're e BEST but they do koe their job, unlike HKL.

i used to service my S4 at unity, u can give them a try.

wash carb + tuning = SGD$80.00

[piggyfeng]

try combine, i wash and tune for $80, but have to wait for some time, they wash will use 2 to 3hr...................

and u get a shiny carbrator back

[ingyin]

I just washed and tunned my carbs at Combine recently. Can feel the difference before and after. Long wait is expected because they will really do a very detail and good job. U won't regret going there.

[kata_no_more]

yah, cannot do servicing at hkl...

 

try other places recommended

[Spec II]

Recently my S4 mileage from abt 320(full tank) dropped till 285+.. Will wash carb do the trick?

[Guest NPNT]

Originally posted by Spec II@Jun 27 2005, 10:04 PM

Recently my S4 mileage from abt 320(full tank) dropped till 285+.. Will wash carb do the trick?

hhmmm...mine is ard 260+ and then goes into reserve... i donno if air filter or carbs will do the trick. whens the last time u svc ur carb? n air filter?

[mokamoka]

Clean or replace your air filter...

check your tyre pressure...

[humveexl]

for info::: I just sent in my bike for Carb@ ACE motoring AMK ind Park 1 Blk 4001. The uncle own a beri old s4 and mod it like new (He is veri detail) this shop is best for carb+servcing. cost is ard 80++. can try it:thumb:

[Spec II]

Originally posted by newbie@Jun 27 2005, 11:07 PM

hhmmm...mine is ard 260+ and then goes into reserve... i donno if air filter or carbs will do the trick. whens the last time u svc ur carb? n air filter?

Wah.. yours is 260+? Its has been at least 1 yr+ never svc carb..

[burningacid]

Originally posted by humveexl@Jun 27 2005, 11:27 PM

for info::: I just sent in my bike for Carb@ ACE motoring AMK ind Park 1 Blk 4001. The uncle own a beri old s4 and mod it like new (He is veri detail) this shop is best for carb+servcing. cost is ard 80++. can try it:thumb:

what do u mean by mod it like new? as in the engine wise (tuning) or the outlooks??

[Guest NPNT]

Originally posted by Spec II@Jun 28 2005, 03:11 PM

Wah.. yours is 260+? Its has been at least 1 yr+ never svc carb..

ya lor donno why liao...

 

neway dis morning i did change EO(300V, used 3btls only, coz someone passed me 0.25L) + oil filter + wash air filter + flush coolant = $100.

 

hope the FC inproves. if not, mebbe i try svc carbs if still got $...

[Spec II]

Originally posted by newbie@Jun 28 2005, 04:58 PM

ya lor donno why liao...

 

neway dis morning i did change EO(300V, used 3btls only, coz someone passed me 0.25L) + oil filter + wash air filter + flush coolant = $100.

 

hope the FC inproves. if not, mebbe i try svc carbs if still got $...

I change EO yesterday. Hopefully it will improve.. Do u have any motortiam in ur mind if u are goin to svc carb?

[Guest NPNT]

Originally posted by Spec II@Jun 28 2005, 08:48 PM

I change EO yesterday. Hopefully it will improve.. Do u have any motortiam in ur mind if u are goin to svc carb?

maybe Combine, heard good reviews abt it, but its a bit far for me as im living in the east. or maybe Planet... but Ah Chong seems to dislike svcing carbs...

 

 

wad abt u?

[humveexl]

what do u mean by mod it like new? as in the engine wise (tuning) or the outlooks??

He got an type R super four 10 years old. Engine fine tuned, through hole exhuast + repainting. Power+Audio impact + looks new. hee hee, he is a mechanic. I just done up my 6 years old bike, now having the power like new. Can try his skill.

[kaginah]

some guidelines for carb noobies!

 

to wash a carb, the shop will usually remove the whole carb assembly and dismantle it into pieces and they will wash thuroughly with petrol...

(a good mech would wash the insides and outsides)

there should be some dirt and grime on the exteriors.

 

after that they will usually blow it dry with the air compressor blower...

they will then put everything back

(make sure u see with ur own eyes that EVERYTHING IS BACK IN!)

the carbs cannot work properly without everything in... LOGIC!

 

at this point, they will mount back the carb and will commence with tuning. cos prior to this stage, they have removed every single screw and float and needles so a re-setup is a MUST...

 

they should use a vaccum gauge to sync the carbs with the same amount of airflow, this may take a while cos the optimal settings are hard to find so time is needed...

 

as for the optimal Air Fuel Ratio, how its determined i also not sure...

for me last time, i will increase the idling abit, maybe to about 2000rpm and i will start playing with the air mixture screw... start with rich to lean, slowly turn till the bike's rpm will climb up to the peak (means the highest rpm achieved) without revving or turning of idle screw, den stop there. that is my optimal setting... i not sure one okay... not accurate dun blame me for this part...

[William Tan]

Few points to note...

 

1. Carbs are only washed with petrol. If you see any fella washing your carbs with water or any other thing, STOP HIM!

 

2. Synching and tuning of air/fuel ratio should be done at the same time. Synching uses a 4 vacuum gauges (1 for each cyclinder) and the air/fuel ration uses another machine that measures the amount of hydrocardons, CO, and etc etc coming out from your exhaust.

 

From what i know, synching is not much of a prob but tuning is. Without the machine, the only way is to ride and check your plugs often. For a single cyclinder, it's easy to tune, but imagine 4 cyclinders! Tuning also comes with experience. Not many ppl know how to use the machine.

 

Go to a reputable shop to tune. For me, i only go to RS Bikes, at Eunos industril estate..