Carburetor Section

ayell

500 RPM
Senior Member
Jun 18, 2004
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Segamat JHR
Woh! twin side draft Weber 45. Won't the fuel feed be too high for a 1.5L engine?
Not necessarily, just need to properly tune the jettings (idle jet, pump jet, main jet & air corrector also the venturi size) to suite your engine. For now I can get around 300km per Rm50 ron95 (recent petrol price) without sacrificing the power.

It takes me very long time to get the tune I need, but it worth it :)
 

vr2turbo

((( God Level 30,000 RPM )))
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Not necessarily, just need to properly tune the jettings (idle jet, pump jet, main jet & air corrector also the venturi size) to suite your engine. For now I can get around 300km per Rm50 ron95 (recent petrol price) without sacrificing the power.

It takes me very long time to get the tune I need, but it worth it :)
Fuh! that is pretty good. I had a Down draft on my previous 3rd Gen Accord. The best we had was also a side draft 45 on the 2nd Gen Prelude. Started out with the 40, then 45 with high cam. That was a 1.8L power plant but after total mod can out accelerate the then old model BMW 323i....:driver:
 

ayell

500 RPM
Senior Member
Jun 18, 2004
808
4
3,018
Segamat JHR
Fuh! that is pretty good. I had a Down draft on my previous 3rd Gen Accord. The best we had was also a side draft 45 on the 2nd Gen Prelude. Started out with the 40, then 45 with high cam. That was a 1.8L power plant but after total mod can out accelerate the then old model BMW 323i....:driver:
:driver::congrats:
 

ayell

500 RPM
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Jun 18, 2004
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:driver::biggrin::slug:
 

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^pomen_GTR^

7,000 RPM
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May 13, 2010
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just checking in seeding the knowledge from here... :driver:
 

ayell

500 RPM
Senior Member
Jun 18, 2004
808
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Oh ya, just for info. When you fit in twin weber, advisable to upgrade your standard ignition system to performance ignition system such as MSD or HKS ignition driver, especially for old car. If not it will be hard to get it properly tuned as you will always running rich.


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ae92 corolla

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Aug 22, 2011
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Hi guys its been more than 2 since i log in into ZTH. Nice to see the forums are still ongoing.

Im using Toyota Corolla AE92 sedan. I bought a brand new Aisin or Aisan (couldnt remember) brand carburetor to replace my old carburetor in 2012.

Previously i can go up to 120 km for RM 20 / RM 22 petrol (without air cond).

Recently im having problem with my carburetor, i can only go up to 90 km for RM 20 / RM 22 petrol (without air cond).

Do i need to re-tune the carburetor for some fuel savings? If yes, can you all suggest any experts in this with a reliable service records. By the way, i am from Serdang, Selangor. Preferred the mechanic within Klang Valley.
 

ayell

500 RPM
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Jun 18, 2004
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Maybe you can try the carburetor/injection cleaner first. Also it might not the carb problem, other factor like ignition (distributor, plug, plug cable) also contribute the the poor fuel consumption.


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vr2turbo

((( God Level 30,000 RPM )))
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Hi guys its been more than 2 since i log in into ZTH. Nice to see the forums are still ongoing.

Im using Toyota Corolla AE92 sedan. I bought a brand new Aisin or Aisan (couldnt remember) brand carburetor to replace my old carburetor in 2012.

Previously i can go up to 120 km for RM 20 / RM 22 petrol (without air cond).

Recently im having problem with my carburetor, i can only go up to 90 km for RM 20 / RM 22 petrol (without air cond).

Do i need to re-tune the carburetor for some fuel savings? If yes, can you all suggest any experts in this with a reliable service records. By the way, i am from Serdang, Selangor. Preferred the mechanic within Klang Valley.
Pm to you dy....:driver:
 
Dec 9, 2015
1
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1
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Kuala Lumpur
search u-tiup bruh
Hi unker fred,

I was introduced by madxxxx garage from lyn to you, since his workshop open only on weekday as im working in segambut area.

Can you tune my 4g13 carburetor? was running on ngv previously, now de-kit but the tuning running rich...heavy fuel consumption 200+- km per tank

how much do you charge for the tuning?

and how do i contact u?

i cant pm u :bawling::adore:
 
Feb 8, 2016
2
0
1
Kuala Lumpur
I want to ask, last time someone removed one item from the choke section of my old Proton Saga car. It is like in the picture, the one on the left that look likes a baseball bat. Now my car when cold start, before start need to pump the accelerator pedal many times then crank only it can start but need long time to become stable. Need to keep leg on the accelerator for abt 5 mins otherwise engine die. What is the function of that stick and should I ask someone to put it back?
 

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Rleo6965

Known Member
Jun 22, 2012
161
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Philippines
I want to ask, last time someone removed one item from the choke section of my old Proton Saga car. It is like in the picture, the one on the left that look likes a baseball bat. Now my car when cold start, before start need to pump the accelerator pedal many times then crank only it can start but need long time to become stable. Need to keep leg on the accelerator for abt 5 mins otherwise engine die. What is the function of that stick and should I ask someone to put it back?
The baseball bat part was actually the cold rod compensator of the carburator. When engine was cold. The cold rod was retract and causing the throttle plate was partially open for cold start...

When you cold start your engine.The engine idling rpm will increase due to partially opened throttle plate...When engine reached the normal temperature . The cold rod will push out the throttle plate mechanism and partially close the throttle plate causing to reduce idling rpm.
 
Feb 8, 2016
2
0
1
Kuala Lumpur
The baseball bat part was actually the cold rod compensator of the carburator. When engine was cold. The cold rod was retract and causing the throttle plate was partially open for cold start...

When you cold start your engine.The engine idling rpm will increase due to partially opened throttle plate...When engine reached the normal temperature . The cold rod will push out the throttle plate mechanism and partially close the throttle plate causing to reduce idling rpm.
Thanks, wow looks like no one visit this thread now.

So is this baseball bat thing, should I ask someone to put it back?

My Saga is the one with manual choke. Do you mean that this cold rod retract by itself (auto?) during cold start or when I pull the choke?

When you mention retract, do you mean during cold start the baseball bat move out or move in deeper to the carb housing?

Without this cold rod right now, is my throttle plate in normal position when I am driving (warmed up)?
 

vr2turbo

((( God Level 30,000 RPM )))
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May 11, 2010
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Nowadays mostly fuel injected car dy......those who have used or gone through carb, will drop in.....:biggrin:
 

Rleo6965

Known Member
Jun 22, 2012
161
46
528
Philippines
Thanks, wow looks like no one visit this thread now.

So is this baseball bat thing, should I ask someone to put it back?

My Saga is the one with manual choke. Do you mean that this cold rod retract by itself (auto?) during cold start or when I pull the choke?

When you mention retract, do you mean during cold start the baseball bat move out or move in deeper to the carb housing?

Without this cold rod right now, is my throttle plate in normal position when I am driving (warmed up)?
Initially, the rod was fully retract when engine was cold. The throttle plate was partially open to increase rpm during cold start,

If you notice, there's two water hose connected to the cold rod assembly... When water temperature increases. Water pressure also build up and gradually push the cold rod outward around 8MM. And pushing back throttle plate to reduce opening of throttle plate . Thus decreasing idling rpm around 700 rpm.
 

fadin_remorse

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Senior Member
May 28, 2008
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I have a saga lmst, where can I have the carb retuned or even rebuilt? someone who is good in tuning especially. From klang valley or KL be fine
 

vr2turbo

((( God Level 30,000 RPM )))
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I have a saga lmst, where can I have the carb retuned or even rebuilt? someone who is good in tuning especially. From klang valley or KL be fine
New mechanics don't do Carb. If You want, can try my mechanic, Hoong Seng Autoworks, 22, Jalan TPP 1/16, Taman Perindustrian Puchong, 47100 Puchong, Selangor Phone: 03-8062 4185. Old school mechanic from Carb time. He did my Civic 1st Gen, Accord 1st and 3rd Gen, even my Weber mod. Mr. Fong 019-3315475
 
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fadin_remorse

Known Member
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May 28, 2008
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New mechanics don't do Carb. If You want, can try my mechanic, Hoong Seng Autoworks, 22, Jalan TPP 1/16, Taman Perindustrian Puchong, 47100 Puchong, Selangor Phone: 03-8062 4185. Old school mechanic from Carb time. He did my Civic 1st Gen, Accord 1st and 3rd Gen, even my Weber mod. Mr. Fong 019-3315475
Thank you for the reply. Will give him a call.
 

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