@ psr sir : Regarding the throttle adjustment as guided by you, I loosened the lock nut and turned the thread nut in anti-clockwise direction and the play just disappeared, after this I tightened the lock nut but thread can be still turned either way and the distance between the lock nut and thread nut is more as you can see the image below. The procedure followed by me was fine and the distance between the nuts is normal and the thread nut can be moved either way now is normal ?

After this I try to start the bike by self but it didn't started, so I tried by kick. I started after 4-5 attempts and gave some hiccups and some 'puk-puk' sound and then then engine shuts down by itself.
I started gain using kick and then adjusted the rpm using the rpm screw and then settled it to 1100rpm and kept the engine started idle for around a min and then it stopped by itself. Is there any issue ?
Why is my bike started by behaving like this and does throttle clutch play has some affect on FE, as my bike in last complete run returned just 19.78 kmpl ... this is big worry for me as earlier it used to return easily around 35kmpl in city driving and riping on highways too.
Please help me out ....

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Ya , I bought it at Kannur .It's much brighter than the original park light . Occasionally I use it as riding light - mostly when I'm in a hurry . As park light @ dusk it gets noticed pretty well . I'm yet to see how it fares along with the H/L switched on at night . If there aren't any resistors in the base , it means that it is a 12v diode . Would like to know the wattage/amperage though .

Yo bro - you locked the nut at the opposite end as far as I can see . The lock nut is supposed to be tightened to the 'thread nut' so that it cant move . Another thing that came to my mind is that you may have inadvertently given tension to the acc cable by turning the 'thread nut' more than required . Try turning it in so that the position is just before where you get 'play' in the acc.
Dont lose hope - I'm fighting with a low mileage prob myself (tho not as low as you ) and will keep the forum posted . The problem is that I used to fill petrol for 200/- ( 3.04 L ) and it takes @ 5 days to hit reserve. Today , I've filled for 100/- (1.52 L ) and the next time it hits reserve I'm going tinkering with the air screw .
Cheers

Made necessary changes to the lock nut and give little play to the throtle and checked the rpm by turning the handle either ways, there was no increase in the rpm.
The current setting is in the mage below.
Didn't adjusted the idle rpm as came from a test ride so bike was little hot, will to that in the morning.
Question regarding the AFR screw, if I adjust the AFR completly lean i.e. turning it clockwise till it stops (Am I right at this ?) will it wonders to my FE and ridiculously impact the performance of the bike like initial pickup, acceleration and the top-end ????
Sorry if I sound noob, didn't have any idea of it earlier. Just started to learn about this.

I dont think your bike will start with that setting.

Me too was thinking the same but bro I have no idea on this so needed some expert opinion.
Just read the link 'Tuning of Carburator' in Ashwin's signature, following that will do good to the bike ????

completely turning the AFR screw clockwise till it stops will lean the AF mix to very lean , and you will not be able to start and idle the engine in the morning.The stock setting is 4 turns ANTI CLOCKWISE after turning the afr screw fully clockwise...This is only a starting point guideline and NOT A SET RULE NOT TO BE CHANGED.+ or - 1 turn of this setting will give you the setting for reliable start and FE.You will have to monitor the FE and spark plug to get the best out of your engine.

Don't worry bro,Me too have a Karizma 06 model,I have adjusted AFR screw as psr sir said and now mileage figures are 29 in city and 39 in highways.These figures are includes ripping and carrying pillion 99% time,So i am sure that i will get more FE if i ride sanely.So just follow these steps and i am sure that you won't regret.

Wow...My guess was right.

Nothing to worry about FE,I am getting 29 in city and 39 in highway with this setting with mixed riding(ripping,carrying pillion etc). Guess these figures are good for a Karizma.

Bro made the necessay tightening to the lock nut and checked for little play in the throttle so that I have not given tension to the cable, I shown in the image in my last lost.
Will tune the AFR as guided by PSR sir and will check for the FE and overall performance.

Thank you sir for this learning.
I'll keep you posted with the results when I had made changes and observed the performace.

I was getting 33 in city and 43 to 45 highway..after the mods I had done i think will get below 30 in city due to richer running...I have 6 liters to finish let us see....but after the present setup I am not willing to go back to stock.for FE's sake..

I have '05 model and was running all good but suddenly this problem raise all worries for my bike when I checked for the FE in last run.
Thanks buddy for the info , will follow the steps as guided by psr sir and see what it comes down to.

sir at what speeds do you ride in city and in highways?


100 % i wont do it in my future.

@ kariznin

Stay in touch with the forum bro,Nothing to worry,we are here to help.

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the ZMA from 2003 to 2005 are notorius for less mileage, because their ignition timing is different and aggressive. this was tuned down and with additional clutch plate the ZMA-R appeared on the scene.You say you are getting 35 in city ,....it is a very good FE for this model..Like i said turn the AFR screw by half turn CLOCKWISE and see.You will learn to adjust the performance and FE you want by learning it by yourself...it is not rocket science..