Carburettor vs Fuel Injection

[mr grumpy]

Not sure whether this qns has been here but im interested to know the opinions of bros out here

[Pandoras Kitten 3]

Here's a zillion answers to the same topic all saying similar things.

 

http://www.google.com/search?q=carburettor+vs+fuel+injection&sourceid=ie7&rls=com.microsoft:en-sg:IE-SearchBox&ie=&oe=

[mr grumpy]

any personal opinions?

[Phang]

What is your question?

[slackspark]

i guess small bikes (2b) , is good running a carb rather than injection. cos i once rode wave i,give loads of probs,than chg to wave s.till now no prob at all. -imo

[kinwei]

In terms ride smoothness, EFI will be better as it has a higher mapping resolution compared to carb. In terms of reliability, carb usually will outlast electronics.

[mr grumpy]

What is your question?

 

qns is wads ur take on carbs and fi bro? did i ans ur qns?

[KeraKing]

i lazy to do the jettings on carb..

is EFI the answer for me?

[holeyman2000]

i have heard that EFIs are "supposed" to be fuel economical?? Is that true?

[Pandoras Kitten 3]

i have heard that EFIs are "supposed" to be fuel economical?? Is that true?

 

Electronic controls mean precise metering of optimal fuel-air ratio and the safe use of leaner mixtures automatically increasing efficiency. Higher compression ratios also mean higher efficiency and power potential.

 

Smarter units also have acceleration enrichment and deceleration enleanment optimising fuel flow for throttle response/torque and economy for cruise/engine braking accordingly.

 

Carbs can't do that, you only have the right hand and your knowledge of carb settings to regulate fuel use and mixture settings. Many carburetted bikes I've seen are running on impressively inefficient mixtures and their owners don't dare to DIY tune the settings even if it requires only one screwdriver.

 

So, EFI is especially good for a no-hassles bike anyone can use and enjoy.

[onelegkick]

Agree with Kalyan

 

EFI offer "smart" tuning and that means fuel efficiency.

 

Cab engine means you need to tune it yourself. If you are not familiar and not very hands-on, you end up going to the shop or at the mercy of a mechanic to tune for you and adjust till you like it. That means more costs since you end up paying for that services.

 

Honestly, I would go for a EFI vs a Cab unit. I dont think whether or not a smaller cc engine should be better for cab or efi.

 

I have been driving (own a car) for over 30yrs and have owned carb engines and EFI engines and I experienced for myself how much work needs to be done to tune a Carb engine vs a EFI. My 1st car was a VW 1300 Bettle and I used to have to read the manual and asked around to tune the Carb to get the best efficiency and was quite sick of it. And then when EFI came out for newer cars, I realised how smooth the engine was and no worries abt having to retune.

 

I am not experienced in Motorbike engines, but I would expect the mechanical operations are on the same principle of piston, stroke, bore, and spark generation, fuel/air mix... and so I think it applies to motorbike engine

 

Just humbly sharing my 2 cents worth.

[KeraKing]

Agree with Kalyan

 

EFI offer "smart" tuning and that means fuel efficiency.

 

Cab engine means you need to tune it yourself. If you are not familiar and not very hands-on, you end up going to the shop or at the mercy of a mechanic to tune for you and adjust till you like it. That means more costs since you end up paying for that services.

 

or u can do like me.. trial and error until piston jam.. then need to fork out even more money.

 

EFI for the win

[AkalaPovic]

or u can do like me.. trial and error until piston jam.. then need to fork out even more money.

 

EFI for the win

 

I feel you lol..

Had to spend lots of time to trial and error my cbr4's jettings.. not to mention theres like main jets, pilot jet, air screw and jet needle..

 

Solve all the problem with a pc5 on my cbr1 =)

[KeraKing]

I feel you lol..

Had to spend lots of time to trial and error my cbr4's jettings.. not to mention theres like main jets, pilot jet, air screw and jet needle..

 

Solve all the problem with a pc5 on my cbr1 =)

 

then theres the need to balance the 4 carbs.. haha

[Pandoras Kitten 3]

That reminds me... how do you ever balance 4 carbs that aren't accessible without disassembly?

 

"Oh I tuned them all... oh wait number 3 doesn't like me..." *open up everything again*

[AkalaPovic]

then theres the need to balance the 4 carbs.. haha

 

That reminds me... how do you ever balance 4 carbs that aren't accessible without disassembly?

 

"Oh I tuned them all... oh wait number 3 doesn't like me..." *open up everything again*

 

Oh well.. i rmb seeing 1/4 plugs having a different color compared to the rest.. then my reaction goes +

 

Then i start asking.. why is that damn carb richer than the rest god damn it

[tangmulong4488]

efi better... newer technology, improvement improvement.

[RxzDelux]

EFI for me! I switched from Wave-S to Yamaha FZ150i which have EFI. I love it. The Wave-i last time i heard got EFI problem when it was at the initial stage batch but after that no more problem i heard.

 

EFI is much much better than my carburator Wave-S.

[mild_slevin]

I saw mine with ECM and wholesome of sensors, which I believe providing ECM with real time readings, so like many said ECM would do proper adjustment base on those "facts" feedback from sensor. Offering the vehicle a optimal setting. Carb wouldn't be that bad, its been serving the automotive industry for more than 40++ donkey years. (*OK, at that time there's no other alternatives as well)

 

We can see that many smaller displacement bikes are getting such a good gadget. FZ150i, YZF-R125, Wave-i etc...

Edited September 26, 2010 by mild_slevin

[Pandoras Kitten 3]

Ya I was very impressed with the FZ150i specs. Look at that compression ratio! Can run on regular gas too (sorry American accent today. regular gas - 92 )

 

Lol ECM.

 

Since I read too much air combat stuff ECM = Electronic countermeasures. Does it come with chaff, flares and antiradar missiles too