1993 Suzuki Margalla Carburetor

Tiny
FAROOQ SHAH
  • MEMBER
  • 1993 SUZUKI MARGALLA
  • 70,000 MILES
I have a CNG fitted Margalla. The original carburetor stopped performing efficiently. The body near the throttle valve side had cracked, there were jolts when the accelerator was pressed at low speed and the mileage was around 6 to 7 km per liter. My mechanic had serviced the carburetor many times and finally suggested to replace it. I took his advice and bought another carburetor. The new carburetor for my car was no more available in Pakistan. I had to buy a second hand carburetor. The second hand carburetor came along with the engine, Japanese make. The carburetor is of a new model margalla.

My mechanics had inspected the carburetor at the time of purchase and said that it was in very good conditioned and sealed (non-repaired/non-serviced). I bought only the carburetor for $263. My mechanic suggested fitting the carburetor as it is without servicing or doing anything with it since it was sealed. He said we would open it up later.

The drive of my car has certainly improved with sharp and smooth acceleration. The mileage within city is between 10 to 11 km per liter. Recently I took it out of city for a 40 to 50 km drive and calculated the mileage to be roughly 13 km per liter (with AC).

What I want to know is what is the best mileage I can get with my car and the carburetor? Secondly my mechanic is now suggesting to bring in the car so that he can service the carburetor and replace it jets. Should I be taking this advice of his? Also with the previous carburetor, the car had a choke system which allowed for higher rpm in cold start and also another automatic choke for higher rpm in AC mode. I find these two features missing with this carburetor. Does the car always start with choke in the morning even in summers? Another question is about the idling rpm, they rise from the value they are set to, like the other day the mechanic set them to 900 on petrol and after I drove a little they increased to 1200, why is this so?

I have attached a few pictures of my car under the hood. Please tell me if you can, where can I find idling screw?
Do you
have the same problem?
Yes
No
Sunday, August 18th, 2013 AT 1:29 AM

7 Replies

Tiny
KHLOW2008
  • EXPERT
We do not have the figures for fuel consumption and they can vary depending on the carburetor, driving condition and habit.

The picture does not show the idle adjust screw and if you remove the air, you should be able to see it somewhere near the throttle.

The third picture shows the FICD, fast idle for increasing the idlind speed when A/C is turned on. You need to find out if the solenoisd is working, adjustment is correct, vacuum lines are correct and solenoid is working.
Was this
answer
helpful?
Yes
No
Sunday, August 18th, 2013 AT 1:54 AM
Tiny
FAROOQ SHAH
  • MEMBER
Thank you for the prompt reply. I understand the mileage depends on many factors but just to compare how my car is doing, what should be a decent average for a carburetor engine?
Can you also please expain why the rpm rises, this happens both on CNG and petrol?
Was this
answer
helpful?
Yes
No
Sunday, August 18th, 2013 AT 5:17 AM
Tiny
KHLOW2008
  • EXPERT
Something seems not correct with the carburettor and it could be an adjustment that goes out when engine is warm.

There are no standard gauge for fuel consumption.
Was this
answer
helpful?
Yes
No
Sunday, August 18th, 2013 AT 9:19 AM
Tiny
FAROOQ SHAH
  • MEMBER
So that means I should take my mechanic's advice and let him open up the carburetor for servicing?
Was this
answer
helpful?
Yes
No
Sunday, August 18th, 2013 AT 10:44 PM
Tiny
KHLOW2008
  • EXPERT
Yes, I would suggest that too. Used carburetors sometimes can be clogged due to fuel evaporating leaving behind oxidation residue.
Was this
answer
helpful?
Yes
No
Monday, August 19th, 2013 AT 6:00 AM
Tiny
MUHAMMAD ADIL
  • MEMBER
Hi Mr. Farooq, I want to discuss about the consumption of margala with you. Plz contact me on muhammed_adil86@hotmail. Com
Was this
answer
helpful?
Yes
No
Tuesday, November 25th, 2014 AT 2:20 AM
Tiny
KHLOW2008
  • EXPERT
Closing question.
Was this
answer
helpful?
Yes
No
Sunday, February 22nd, 2015 AT 2:16 AM

Please login or register to post a reply.

Recommended Guides