I seriously believe that CARB settings is the key point where grease monkeys mess with us and it would be better if we learn this art and not to depend on mechanics( except the good ones) for this job and cry later.

DISCLAIMER
Please do not try to fiddle with your brand new bikes..I am doing this because my bike has already clocked 11K and i can go any time to a GOOD mech@ CBZ if anything drastic should occur.

AND please as PBK150 mentioned take down FACTORY setting by counting the no of turns anti-clockwise and clockwise from the default point before doing anything.

My bike has clocked 13000kms and I have still not yet done any EXPERIMENT on my bike. Just restricted myself to normal maintenance schedules and she is almost as new. The latest mileage figures calculated was 46kmpl that too yesterday and the latest top speed achieved (a few days back) is 127kmph.

P.S: I will post the pictures of my bike's carburetor setting screw. It will clear the main position on which the carburetor screw should be for optimum balance of air and fuel.

Helo, Greetings from Indonesia

I owned a P180 UG1 and have been using it for almost 4 Years...
the bike is absolutly terrific..





Mine is the red one..

Well, yeah. I agree on not playing with the carb thing. It can be a major pain if fate betrays you.

On a personal front, though, I'm very happy with the carb setting I have found now. The engine fires up at the very first crank of the starter and hums peacefully at idle, even when cold (this wasnt so earlier when it would stall all the time). Mileage is well above 47 given that I am riding under limits mostly.

I just hope they don't play with the VC screw at my next (2nd) service. I'll tell them explicitly not to touch it.

Carb tuning requires a lot of patience and pertinence. But given the propensity of Bajaj screwing it up, I think its better for all of us to be aware of what settings they should be and be on the lookout for anything that can be harmful/unnatural.

I don't think tuning a carb can be even classified as an EXPERIMENT,it is merely just a setting that one should be aware of.And as far as other things are concerned like K&n and stuff...i want to mention that my bike is as stock as yours and is almost as new.
The mileage figures you've achieved is extraordinary,you don't ride fast and obviously bajaj mechs must have wisely tuned you carb to extract more mileage(optimal-lean) so no wonder.Top speed can still achieved even after the tuning.

I don't want extra-ordinary mileages and iam not power hungry either to plonk some K&n and free flows..., i just want the bike to perform as it is supposed to ..no more no less.

" I will post the pictures of my bike's carburetor setting screw. It will clear the main position on which the carburetor screw should be for optimum balance of air and fuel."

^ this wont do any good, it depends on no of rotations and not on a particular position.Anyways just post it so we can see your setting.


And as i recall,you tried to tune your carb sometime ago and things din't go well so you reverted back to normal I can do the same thing in such situations.

As i've already said.... Iam doing it on my own,so i am not forcing anyone here.

@haryowidodo

Welcome to XBhp and to 180 section.

your bike looks terrific,..crash guards,fat tires...awesome.
it seems like you're into touring aren't you?

Once we are thoroughly educated on what is what when it comes to carb tuning, I don't see any reason why one shouldn't. Just all this talk about it might give an impression to a newbie that its a very easy thing or something. Frankly, I thought the same too until I got down to doing it.

Caesar, just some of the observations I found during my endeavours which might be of some assistance.

1. The thumping of the engine sounds slightly like a knock if you try to accelerate slightly hard when the setting is too lean. This I corrected with just 1/4th of a turn to enrichen it.

2. A too rich mixture made my bike feel as if the engine couldn't breathe properly. The engine revving gets stifled, somewhat. Thats what i felt.

3. Heating. Running too lean meant my bike was heating much faster. I guess this is more noticeable in a new bike.

4. Of course, the top speed. Too lean and I was struggling to get to 95.

Also, for me the setting is somewhere around 4 turns or slightly less.

The reason why I got that kind of mileage (47-48) is because I'm riding really easy. Usually hover around 55-60 and don't exceed 72-75 when I do push it.

Moreover, the part of Delhi I travel through has lighter traffic so no heavy clutch pulls and traffic stops.

^ right.
Good observations,..i took note of all this and started to rule out one after another..it took me a few iterations to lock down a perfect point.

Welcome! and Nice to see a tightly modified UG1 bike. BTW, which tyre are you running on currently? and what were the swing-arm modifications done to accomodate that tyre?

Replies in bold & underlined.

Thank You Ceaser

Yes I'm into touring, and its great bike to travel far and beyond...

I use Bridgestone Battlax BT014 for the rear tire and Dunlop Sportmaxx for the front.

The modification is i put on a 4,5 inch rear rim and 3 inch front rim. I put on P200 swing-arm to accomodate it.

Hi All!! I want to know the jet size of P180... Both Main and pilot jets.. can U please tell me exact price of them and where can I get them in hyderabad?? what is the cost of them?? P.S-Upjetting my P150 UG4 with P180 jets...

Thanks. Man that's like fitting a ship inside a bottle. But, a proportionedly modded bike, I must say.

Faulty Console !

Off late the speedometer console of my P180 has been giving problems. At times it would'nt light up, just be blank and thus the intermittent kilometers traveled are not recorded. Then suddenly it comes back on its own and functions normally.... What might be the problem??

Check the electrical connection to the speedometer. It might be loose. And if all goes right then the fault lies in the meter itself.