[Discussion] Technical - Fuel Consumption

[Jonborah]

Hey guys

 

I'm riding a version S. Used to get 24km/L.

 

Recently changed to knobbies and rear sprocket changed to 40T. and my fuel consumption gradually went down to 21km/L, 20km/L and now about 19km/L. if it is due to the wheel/sprocket change, the change would be immediate, not gradual right?

 

Any idea what else may be the problem?

 

I've changed EO and spark plug, still same problem.

[YuaN_]

Anyone can help??

 

Y my vtec 1 travel 250km reserve Liao.. Pls advice

[HaiR1]

Anyone can help??

 

Y my vtec 1 travel 250km reserve Liao.. Pls advice

 

 

 

 

Check :

 

Airfilter

Spocket (front / back)

Chain

Tyre

Wheel bearing

The way u ride

[noLplate]

My vtec 1 also having bad fuel consumption. Only can get 16km/liter. Using yoshi full system, knn airfilter, carb stocknsetting but got tune because of exhaust. I tried changing the clutch plates all that. Also never improve my fuel consumption. Any one knows what is the problem?

[jtzx]

One think u can also check is the header manofold. See got air leaking out anot. That may effect the FC too

 

Sent from my GT-I9505 using Tapatalk

[736cc]

My vtec 1 also having bad fuel consumption. Only can get 16km/liter. Using yoshi full system, knn airfilter, carb stocknsetting but got tune because of exhaust. I tried changing the clutch plates all that. Also never improve my fuel consumption. Any one knows what is the problem?

 

Using stock sprocket size?

If up/down size might affect the fuel consumption. Also check the connector to the airbox got any air leak due to old bike and rubber also worn out.

[iceimmortal]

Hi guys, I'm riding a 2004 spec 3 bike fully stocked. Just got it about a month ago and my FC is very bad. When I hit 200km my petrol gauge starts to run already. Any idea why my FC so bad? I'm still a newbie so I need all the experts to teach me a thing or two about super 4. Thanks!

[HaiR1]

Possible reason for bad fuel consumption :

 

 

-Airfilter (Dirty/ Clogged up)

 

-Spocket (Worn out/ Not standard size)

 

-Chain (Not lube/ Chain too slack/ tightened)

 

-Tyre (Worn out/ Incorrect Pressure) ( Wrong size)

 

-Tyre Valve (Leaking air)

 

-Wheel bearing (Not in good condition)

 

-Engine Oil (Wrong grade/ Due for change/ Too much)

 

-Carburetor (Air/ Fuel not balanced) (Jetting not stock)

 

-Fuel (Contaminated/ Low grade)

 

-Fuel line/ filter (Clogged)

 

-Meter (Inaccurate/ offset)

 

-Rider (MotoGP mood/ Fuel-conscious type)

 

-Clutch (Clutch plate/ spring worn out)

 

-Header Gasket (Worn out)

 

-Weight (Heavy luggage/ pillion/ rider)

 

-Idling (Too High/ low)

 

-Engine braking (Too much)

 

-Abrupt braking

 

-Hard acceleration

 

-Engine condition (TOO much to explain)

 

-Brake Caliper/ Brake pad (Brake Caliper piston jammed?/ not free)

 

-Improper suspension set-up (Too hard/ Too soft)

 

-Servicing (Do on time, dnt overdue)

 

-Idle too long (Waste petrol/ Engine hotter/ coolant affected unnecessary/ WaterPump work harder to maintain temperature)

 

Tats all I can think off, for now.

Edited March 22, 2014 by HaiR1

[Eliminator]

Hi guys, I'm riding a 2004 spec 3 bike fully stocked. Just got it about a month ago and my FC is very bad. When I hit 200km my petrol gauge starts to run already. Any idea why my FC so bad? I'm still a newbie so I need all the experts to teach me a thing or two about super 4. Thanks!

 

Sorry didnt see the above post which is very well explained. That post should be stickied!

 

Sent from my GT-I9505 using Tapatalk

[HaiR1]

Sorry didnt see the above post which is very well explained. That post should be stickied!

 

Sent from my GT-I9505 using Tapatalk

 

 

 

Thanks man..

 

Just my Possible reason:thumb:

[iceimmortal]

Possible reason for bad fuel consumption :

 

 

-Airfilter (Dirty/ Clogged up)

 

-Spocket (Worn out/ Not standard size)

 

-Chain (Not lube/ Chain too slack/ tightened)

 

-Tyre (Worn out/ Incorrect Pressure) ( Wrong size)

 

-Tyre Valve (Leaking air)

 

-Wheel bearing (Not in good condition)

 

-Engine Oil (Wrong grade/ Due for change)

 

-Carburetor (Air/ Fuel not balanced) (Jetting not stock)

 

-Fuel (Contaminated/ Low grade)

 

-Fuel line/ filter (Clogged)

 

-Meter (Inaccurate/ offset)

 

-Rider (MotoGP mood/ Fuel-conscious type)

 

-Clutch (Clutch plate/ spring worn out)

 

-Header Gasket (Worn out)

 

-Weight (Heavy luggage/ pillion/ rider)

 

-Idling (Too High/ low)

 

-Engine braking (Too much)

 

-Abrupt braking

 

-Hard acceleration

 

-Engine condition (TOO much to explain)

 

-Brake Caliper/ Brake pad (Brake Caliper piston jammed?/ not free)

 

-Improper suspension set-up (Too hard/ Too soft)

 

 

Tats all I can think off, for now.

 

 

Wow, thanks for the advice. I guess I'll have to go through a heavy servicing for my bike. Anyone know which shop would be best to do it and cheap?

[HaiR1]

Wow, thanks for the advice. I guess I'll have to go through a heavy servicing for my bike. Anyone know which shop would be best to do it and cheap?

 

 

Good is not cheap

 

Cheap is not good

[736cc]

Good is not cheap

 

Cheap is not good

:thumb: :thumb:

[iceimmortal]

Good is not cheap

 

Cheap is not good

 

lol.. i meant reasonable pricing, not those overcharged type de..

 

i was thinking of trying Unique Motorsports.. should i?

[HaiR1]

lol.. i meant reasonable pricing, not those overcharged type de..

 

i was thinking of trying Unique Motorsports.. should i?

 

 

 

Depends..

 

My suggestion, find 1 shop/ mech to attend to your bike.

 

I have RaceWerks to attend to mine

 

 

 

 

Ps: Some shop out there change mech like changing shirt, not permanent

[736cc]

I did all my Bikes servicing at a shop at woodlands. so far the mech is a nice guy,will not anyhow over charge.

 

Sent from my 2013023 using Tapatalk

[HaiR1]

Price is one thing , Quality & Knowledge is another

[YuaN_]

Anyone riding spec 1? How is ur fc? Mine is about 15l/km.. Hit 225km light start to run

 

How many liters left when light start to run?

[736cc]

Anyone riding spec 1? How is ur fc? Mine is about 15l/km.. Hit 225km light start to run

 

How many liters left when light start to run?

 

15L/km is not normal. My Kawasaki 750 already getting 19.75km/L

 

Need full servicing already.

[736cc]

Price is one thing , Quality & Knowledge is another

 

So far so good. I have few bike done up by him. Very happy with the result.

[HaiR1]

So far so good. I have few bike done up by him. Very happy with the result.

 

 

Good for u man..

[adyanita]

hi guys..need help,where can i go to change my fuel jet for spec3? cos my fc is very bad..planning to change just the jets not as a whole set..and how much wud normaly the shop quote?

[vtec88]

Yo Bros,

 

Try BROQUET Fuel charger to get better power and FC

Super4 Bikers user reviews at my sales thread below.

 

http://www.singaporebikes.com/forums/showthread.php/235030-lt-CMO-gt-BROQUET-Fuel-Charger-(UK)-NEW-(Torque-Top)-DUAL-MODE-SELECTOR-Voltage-Stablize?highlight=

 

https://www.facebook.com/pages/Vtec88-Used-Bike-Parts-Broquet-Fuel-Charger/415899711838681

 

Do take a look and thanks in advance ;-)

[kurarensu]

I have pretty bad fc.

 

Btw what sprocket setup r u all using? Tyre pressure also.

 

Full tank last me around 220-230

[the reporter]

hey people just wanna get some advise from u guys..

getting my 2A and contemplating between spec 1 and 2.

I want good fuel efficiency. so is spec 1 a better choice than spec 2? whats are the cons of spec 2 besides the vtec open earlier? I read through the thread some bros the spec 2 1litre can go up to 23km whereas spec 1 1 litre about 19km.. What price range should i be looking at?

Thanks bros.