hi guys in most of the bikes esp in fz i have found that on a full tank the bike gives lesser mileage. i had a question popping up. does anyone have an answer to it?

when we put 10 ltrs of fuel as compared to 1 lit the pressure in the jet is greater (using same principle as hydrostatic pressure) as the fuel is not pumped as in FI it only flows out of an overhead tap. This can possibly cause a greater flow rate of fuel out of the jet making the mixture richer. The carburettor works on the principle of sucking fuel by the flowing intake air and greater pressure in the fuel needle means greater fuel sucked out.
If the fuel tank is a cuboid, pressure due to 10 lt of fuel will be 10 times the pressure due to 1 lt of fuel. that to me sounds like the air-fuel mixture becomes significantly rich in a full tank situation.

I have a question ... this is the theory i have written... physics says so... is there something to check it? does it really happen...
in every bike i have seen a drop in mileage when the tanks are fuelled full.

This might not show in the pickup as richer mixture does not mean more and more power... it just means engine runs cool and more unburnt fuel.

can anyone device a way to check it guys?
innovation is the key i guess...


adding to this whats the max rpm pple have achieved in 5th gear I went to slightly over 8k rpm... i think intake or exhaust something gets restricting when volume of airflow increases... please comment on causes/remedies/upgrades, if possible other than changing filters/exhaust coz they are quite widely known.

one thing that is on my mind is removing the protective cover of the air filter and replace it with an open mesh. For new guys, increasing peak rpm in top gear could significantly mean increase in peak power and surely the top speed. just make the bike breath free...

i feel the engine in fz can do a lot more than it does presently n that too more efficiently...

Thanks

I have travelled almost 8000kms on my bike but not a single km of satisfaction. Hey Devilboy you said you had the same issue but how was it resolved? Did it resolve itself?

When i ride my friends FZ my A@# burns as it is much quicker than mine & gives better mileage. Can any one earth tell me what can i do to get it right? Changing the carb has'nt help what else?

With a pillion when i go up a hill my bikes starts choking as if its telling me "I cant take it, i am about to die, please shift to 1st gear".

Somebody - Everybody help!

HEY sorry for late reply was oos..
problem got solved ...and as u mentioned correctly..its the choke..
..choke was pulled completely so engine was dyin in between..and..burnt fuel like helll..thats why...4 ltrs were burnt in just 80 kms..now its working ok...
lets se..

Rain tips...

Hi guys...as we all know rainy season is goin to start...and this is my first rainy season wid bike..

can u guys give me some tips and advise..to get bike running perfect..and protect it..??

1. Avoid parking it in heavy rain
2. Lubricate the chain in case it got too muddy
3. After a rainy ride, be sure to clean off the water spots, as they can cause paint dulling&metal rusting
4. Use metal&wax polish to preserve shine.

Shillong is one place that rains like hell but so far no problem faced though i cover my tank properly at night while parking in open space....

But one thing for sure.....get ready to get dirty and muddy expecially your shoes and pants..... make sure your pillion wears a rain suit expecially covering the back and the lower pants and shoes....hehehhe..... Dam its hard to maintain the cleanliness during rainy seasons if you commute everyday.... and one more thing.... beware of slippery road. The Traction of FZ tyres are not that good on Wet and slippery roads.... Skid 10 yards away on a turning when i over bended (though my fault also)...


@ Vinoob: Sorry buddy, dont know if K&N filter would increase the bike's performance, havent tried yet... but sure I enquired from my friend in Shillong who replied that it works well and increases the bike's performance though fuel consumption is more. You can experiment with it since you have already crossed 5k kms..

@Syedali m: Well the problem got solved with time. dont know how?. But sure at times my bike still gives that same problem you faced while going uphill. I could feel the acceleration and response of the bike normal initially. But when i reached 5th gear in FULL throttle while climbing a straight road which is a bit uphill i used to face some problem like a "miss", throttle doesn't seems to be responding instantly. For example: When I am in Full throttle in 5th gear with a Pilion and when i could feel my bike starting to slow down i begin to shift to 4th. But then after I changed the gear and leave the clutch, i could really feel the time taken by the bike to respond. This really pisses me off. it feels like a shortage of fuel!. But this doesn't happen oftenly and only at times when climbing the same road.... Other than this I have no problem.
Well just for the information my bike has travelled only about 6500 kms.

ok lets experiment some thing here... you can get back to the same road without a pillion and see the difference in the response of the bike..... then you can post it back here so that others can also get an idea of the problem.

hi guys....got my steed's 1st service yesterday.....gears have become smoother....
but when i cross 4500 rpm in any gear the bike vibrates like hell. After that the rpm increases but no corresponding increase in Speed. The speed increases above 4500rpm only in the fifth gear with lot of vibrations....
the SVC guy says it is normal..you have to run in the bike more...but its already 1200km...also it just doesnt go uphill in 5th gear...it seems engine is dying out....
also the front pads are still scraping the disc..even after cleaning them..is it normal for a new bike??
help me guys what should i tell the SVC guy...they just dont seem to understand the problem...

i felt the same thing initially... though after i started normal riding (i.e. pushing it hard in the initial gears itself), the 5th gear gets some juice. otherwise if u r in 5th n hav to slow down from 75 to arnd 45 (whr 5th gear feels like the correct gear to be in), then it takes a while for it to get back to that speed...

and in pulsars etc whr if u are in 50 and pull the throttle suddenly, the bike's pick up is felt like a jerk.... that doesnt happen here. u can pull all u want but the response is not proportional to throttle.

5th gear while climbing???? i dont think any 150 can handle that :-/

^^Thnx s and m for replying....you said it correct about the proprtional speed. But what i wanna say is it vibrates a lot after 4500 rpm in every gear....is that normal or should i get it checked??
Also the pads are constantly scraping the disc...any remedy for that????
Guys reply please...

does anyone know if the gear shifter height can be reduced ,i feel it is quite high

there is a bolt used in the link of gear shifter assembly to mount it on the shaft coming out of the engine... (you will spot it easily) remove that bolt completely and the link will slide out from the shaft (using tool kit). lower the gear shifter pedal to a position you want and slide that link back in and insert the bolt n tighten it...
its a 5 min job.

No remedy for pads... after a thousand kilometers or so just get the facing of the pads checked for any scrape marks. If they are not there your brake is doing fine. Noise will reduce with time, will take a few thousand kilometers. But reopening the callipers will bring that noise again.

Carb

whether the bike is having full tank or 1L of fuel, the principle of hydrostatic pressure wont work here. i'll explain it: when the fuel flows from the fuel tank to the carb, the carb doesn't suck the fuel directly. instead, the fuel enters a bowl controlled by a float valve which fills the bowl with fuel only when the fuel level in the bowl is below 20%, and the jets suck the fuel from the bowl only. so the pressure of fuel fed to the jets remain constant all the time. so the flow rate/pressure of fuel will never effect the mileage of the bike.

Yup buddy, but the climg depends on the elevation or the road.... Well in my case, the road was little elevated though about 500 to 600 meters of stretch.

It s not the CC but the gearing that matters