S4 Carburetor Servicing

[piggyfeng]

vtec1 can go till 380 then reseve??

[HONG]

yalor.. vtec so power arr??? 380km to reserve??

[and]

Originally posted by kel81@Jun 3 2005, 06:42 PM

my idling not stable.. went for servicing last week, change spark plugs, dan one of the spark plug very black. the mechanic say need to wash carbs and tune the bike. but my fuel consumption now is relatively gd. 380km before hitting reserve. shd i go for tuning? riding vtec1.

hey which motortiam wash and tune for u?? i am very interested.

[microbike]

can some bro here enligthen me whr's combine? which flr? compare K&T with combine, which one cheaper n better? thanx

[Alvin.Y]

Originally posted by kel81@Jun 3 2005, 06:42 PM

my idling not stable.. went for servicing last week, change spark plugs, dan one of the spark plug very black. the mechanic say need to wash carbs and tune the bike. but my fuel consumption now is relatively gd. 380km before hitting reserve. shd i go for tuning? riding vtec1.

sh*t man

my mileage till reserve drop from around 300+ to 290+

 

will wash and tune carb help?

[hilfiger]

Originally posted by anodise57@May 30 2005, 11:09 AM

eh... for some of the pp out there

 

K&T Accessories is the full name of the shop.. its directly behind Ubi's Dexing...

 

Boss's name is Clifford Tan

 

Washing of Carb bout $70~

 

Recommended 10K or 6 mths of riding with symtoms of lagging in throttle and "weird feeling" even after oil change... Normally coupling with a change in air filter or recharge your KNN air filter for those who are using recommended 10K or 2 oil changes as well)

 

Just did mine... FEELS BRAND NEW~!!!!! shiok ah.....

 

FYI, its 1 cent spend for 1 cent of service ..... some things might be ex u find..... for me.. i just do the internal servicing... mostly pertaining to engine and brakes there... other simpler stuff.. DIY..... His accessories might be a bit steep at times... for me.. though i've been there for years already.

Hi anodise,

 

u go k&t to service carbs rite...do they tune the air/fuel mixture screws for u, besides washing n balancing the carbs? We should preserve the original stock jetting rite from what i've read from the above posts, shouldn't adjust the air/fuel screws rite...

[hachi]

Originally posted by Al-demon@Jun 3 2005, 11:42 PM

sh*t man

my mileage till reserve drop from around 300+ to 290+

 

will wash and tune carb help?

Wash or change ur air filter first and see how.

[HONG]

Originally posted by hilfiger@Jun 4 2005, 12:48 AM

Hi anodise,

 

u go k&t to service carbs rite...do they tune the air/fuel mixture screws for u, besides washing n balancing the carbs? We should preserve the original stock jetting rite from what i've read from the above posts, shouldn't adjust the air/fuel screws rite...

yes they do.. jus tell Clifford that u would like him to adjust the air for u.. he will do it while checking ur CO level to have a more better adjustment... cos he jus adjust my carb's air mixture yesterday.. and the result.. my bike sibei smooth nw... better response... no lag... but still testing the fuel consumption... will update here when the results are out.. but must wait till i go JB pump my tank first in the next few days...

[hachi]

Originally posted by HONG@Jun 4 2005, 02:18 AM

yes they do.. jus tell Clifford that u would like him to adjust the air for u.. he will do it while checking ur CO level to have a more better adjustment... cos he jus adjust my carb's air mixture yesterday.. and the result.. my bike sibei smooth nw... better response... no lag... but still testing the fuel consumption... will update here when the results are out.. but must wait till i go JB pump my tank first in the next few days...

How much u pay for it?

Looked interesting....

[kel81]

Originally posted by piggyfeng@Jun 3 2005, 07:59 PM

vtec1 can go till 380 then reseve??

yes. running on syn5000 some more. syn8000 doesn't give me this mileage. i also duno why. mayb becos i travel on expressway more. tat's why now dilema whether to go for tuning anot...scared tune liao dun have this kinda mileage anymore..

[HONG]

Originally posted by kel81@Jun 4 2005, 03:06 AM

yes. running on syn5000 some more. syn8000 doesn't give me this mileage. i also duno why. mayb becos i travel on expressway more. tat's why now dilema whether to go for tuning anot...scared tune liao dun have this kinda mileage anymore..

better dun touch the carbs if it dosen't giv u any problems...

[hilfiger]

Originally posted by HONG@Jun 4 2005, 02:18 AM

yes they do.. jus tell Clifford that u would like him to adjust the air for u.. he will do it while checking ur CO level to have a more better adjustment... cos he jus adjust my carb's air mixture yesterday.. and the result.. my bike sibei smooth nw... better response... no lag... but still testing the fuel consumption... will update here when the results are out.. but must wait till i go JB pump my tank first in the next few days...

Hi hong,

 

I thought s750wp advise don't touch the air intake screws? Cos they r factory preset, no need adjustment. Juz do washing n balancing only, am i rite?

 

Like the other time u went SF service yr carbs n they messed up yr air screws for u..so is it better not to meddle with the air screws?

 

CO level is carbon monoxide level rite? Also why u hv to change yr throttle cable?

 

Sorrie so many qn to ask u...

[HONG]

Originally posted by hilfiger@Jun 4 2005, 11:25 PM

Hi hong,

 

I thought s750wp advise don't touch the air intake screws? Cos they r factory preset, no need adjustment. Juz do washing n balancing only, am i rite?

 

Like the other time u went SF service yr carbs n they messed up yr air screws for u..so is it better not to meddle with the air screws?

 

CO level is carbon monoxide level rite? Also why u hv to change yr throttle cable?

 

Sorrie so many qn to ask u...

oh... cos after SF touch the screws... my fuel consumption has gotten worse... and oso..when i travel at 80km/h very sluggish despite washing and tuning my carb... so told clifford about my problem.. and he offered to help me adjust it to a lower CO level cos my CO level is high.. about 2.6+...now my CO level is around 1.3 - 1.4 ..... i changed my throttle cable becos too stiff... will get stuck sometimes... and since i oso changed to a new carbon starter that day... so might as well change the throttle cable together so no nid to pay extra labour charge...

[Guest Jyson]

Would like to introduce my friend new workshop located in JB. He works in Singapore has opened his own shop in JB. If anyone would like to go, this is the address:25 Jalan Hang Jebat, Tun Aminah.(Kim Seng Motor). We're 16yrs old friend..my nick name is Tut...

 

My bike are servicing there.... its just few minutes from Tuas Second Link.

 

Cheersss !!

[hilfiger]

Originally posted by HONG@Jun 5 2005, 12:17 AM

oh... cos after SF touch the screws... my fuel consumption has gotten worse... and oso..when i travel at 80km/h very sluggish despite washing and tuning my carb... so told clifford about my problem.. and he offered to help me adjust it to a lower CO level cos my CO level is high.. about 2.6+...now my CO level is around 1.3 - 1.4 ..... i changed my throttle cable becos too stiff... will get stuck sometimes... and since i oso changed to a new carbon starter that day... so might as well change the throttle cable together so no nid to pay extra labour charge...

So am i rite to say before what SF did to yr bike, when u go k&t do carbs servicing, normally u juz wash n synchronise the carbs n never tune the air screws?

[HONG]

Originally posted by hilfiger@Jun 6 2005, 07:52 PM

So am i rite to say before what SF did to yr bike, when u go k&t do carbs servicing, normally u juz wash n synchronise the carbs n never tune the air screws?

nope... i onli noe about K&T after i went SF... but yes... K&T never touch the air/fuel mixture screw ... guess its becos they dun wan to tamper with the factory setting... they onli do washing and synchronise for me

[and]

gd recommendation by u guys, juz service @combine today. was really piss @sanfu, they juz dunno how to service s4carbs.

[hilfiger]

Originally posted by HONG@Jun 6 2005, 08:00 PM

nope... i onli noe about K&T after i went SF... but yes... K&T never touch the air/fuel mixture screw ... guess its becos they dun wan to tamper with the factory setting... they onli do washing and synchronise for me

Hey thanks man hong for yr info...

[Guest NPNT]

unity or combine? $65 vs $80...

[S750WP]

I tried to remove the carbs on my ver R to clean, damm the honda bike is a ###### to work on.

 

I got the throttle cables, choke cable and sensor on the carbs disconnected after some time fiddling. Loosen all clamps, 4 on the airbox side, I'm able to pull the airbox back.

 

However I am stuck and couldn't pull the carb away from the engine despite loosening all the 8 clamps on the engine side.

 

Anyone have remove the carbs on their super 4 can share how can I pull back the carb??

 

What is the adaptor size to fit the engine side for carb syn, the 5mm adaptors did not fit. I guess it could be 4mm anyone can confirm this?

[S750WP]

I have successfully took out my carb today for cleaning. Here is the procedure for you guys who wish to DIY to clean your carb.

 

How to remove carb

*****************

1. Remove seat and fuel tank.

2. Remove the airbox side cover

3. Remove the side farings

4. Remove the nut securing the CDI and shift the CDI away

5. Remove the 2 nut which secure the air box to the frame.

6. Remove the throttle cable at the handle bar side

7. Disconnect the choke cable at the carb side

8. Disconnect the throttle postion sensor connector

9. Loosen all the clamps (4 at airbox to carb), (8 at carb to engine)

10. Remove nut securing the coolant reserve tank and shift the tank out

11. Grab the airbox and pull it away from carb.

12. Grab the carb and pull it off from the engine, squirt some carb cleaner in between the rubber, it helps to loosen things up if your carb has not been taken out for ages. (I believe my ex owner has never wash his carb for 9 years, because all the screws look new)

 

How to clean the carb.

******************

1. Strip all the components on the carbs becareful not to mix the parts up. I separate all the parts into 4 different container.

2. Get a can of carb cleaners and starts to spray all the orifice, the gums on the carb will dissolve easily.

3. Soak all the jets and needles in carb cleaner for 10mins.

4. Use a brush and start to clean the carb body and float bowl.

5. Wait for things to dry up, and start to assemble carb.

 

 

air screw setting

**************

I count the air screw setting and they were as follow.

 

Carb #1 2 and 1/2 turns out

Carb #2 2 and 3/4 turns out

Carb #3 2 and 3/4 turns out

Carb #4 2 and 3/4 turns out

 

Not sure why carb #1 setting is different but manual state 2 and 3/4 turns out.

[Turbo08]

kudos to u been trying to get my hands on the carbs but the sight of dismantling & installing back made me it is one delicate job to remove carb, no wonder bike shop charge high for servicing carb

 

as for the carb settings, did u try turning 2 3/4 for carb #1 ??

[S750WP]

Originally posted by Turbo08@Aug 12 2005, 07:09 PM

kudos to u been trying to get my hands on the carbs but the sight of dismantling & installing back made me it is one delicate job to remove carb, no wonder bike shop charge high for servicing carb

 

as for the carb settings, did u try turning 2 3/4 for carb #1 ??

Plan to set them all to 2.5 turns out and see how the bike runs, because I find the bike seems to be running rich, blip throttle at idle, the tacho needle rise and fall below idling speed then rise to idling speed again.

 

But the plugs looks ok to me though, they are nice tan.

[Turbo08]

Originally posted by S750WP@Aug 12 2005, 07:18 PM

Plan to set them all to 2.5 turns out and see how the bike runs, because I find the bike seems to be running rich, blip throttle at idle, the tacho needle rise and fall below idling speed then rise to idling speed again.

 

But the plugs looks ok to me though, they are nice tan.

is tis how u consider it as rich ?? since u saw the plugs r nicely tanned, then should be running rather perfect ??

 

question !! did u try go ride a few rounds then check ur plugs or check after revving at netural ??

[S750WP]

Originally posted by Turbo08@Aug 12 2005, 07:28 PM

is tis how u consider it as rich ?? since u saw the plugs r nicely tanned, then should be running rather perfect ??

 

question !! did u try go ride a few rounds then check ur plugs or check after revving at netural ??

To determine if the air screw is set rich or lean

 

1. Blip throttle at neutral and watch the tacho needle, if it rise and fall below idling speed and rise to idling speed again -rich

 

2. Blip throttle at neutral and watch the tacho needle, if it rise and fall above idling speed then fall to idle speed -lean

 

To test the main jet if rich or lean

 

1. Ride the bike with full throttle open, maintain for 30 sec, clutch in and bring to a stop, off engine and remove plugs to check color.