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**Taahir** · 05-25-2013, 04:08 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by lockhrt999 View Post

@Taahir:
First of all, Are you sure that they retuned the carb? Because a general servicing also changes the exhaust note. There are two things which are handled in general servicing and do change the exhaust note. First is cleaning Air filter, yes it does change the exhaust note to some extent. Second is the water sipping in the exhaust while a bike wash. Second is quite temporary but yes it does dumb down exhaust note to some extent.

How to know if bike's not properly tuned? The engine overheats and you know that by feeling the heat on your legs(This is lean mixture). Engine knocks in higher gear but at very low RPM like riding at the speed of 30 in 5th gear and bike knocks if you twist the throttle(This is rich mixture). Other factors also change such as top speed, acceleration, exhaust note etc.

I have happened to use these two methods for retuning and none of them are standard.
1. http://www.xbhp.com/talkies/motorcyc...tml#post744758
2. http://www.xbhp.com/talkies/motorcyc...tml#post921559

i'l do the observations...did i do a very bad mistake by asking him to retune my afr screw..?

**I_Live2Ride** · 05-25-2013, 04:30 PM

Re: Bajaj Pulsar 180 (All Versions)

Originally posted by lockhrt999 View Post

Time to play with Air Fuel Ratio(AFR)
Mark or memories the position of afr screw. Start turning it in one direction once in every morning by 180 degrees. If it gets worse revert back to orginal position next day and start turning it in other direction. Stop doing it once you find engine is running fluently.
PS. I'm assuming the initial idling is at least 1.1k. If it isn't, then your bike was stalling only because idling was set too low. Raise it to 1.1k, no need to tune your bike as said above. Easy peasy.

Where is this AFR located in p180 UG3?

Are you talking about the screw which is used to set the race of the engine?

**lockhrt999** · 05-25-2013, 04:48 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by Taahir View Post

i'l do the observations...did i do a very bad mistake by asking him to retune my afr screw..?

Don't know. Don't worry. AFR screw has a high margin for error. So even if the mechanic couldn't revert to good setting, you yourself certainly can with patience.

----consecutive posts auto-merged-----

Originally posted by Taahir View Post

i'l do the observations...did i do a very bad mistake by asking him to retune my afr screw..?

Don't know. Don't worry. AFR screw has a high margin for error. So even if the mechanic couldn't revert to good setting, you yourself certainly can with patience.

----consecutive posts auto-merged-----

Originally posted by I_Live2Ride View Post

Where is this AFR located in p180 UG3?

Are you talking about the screw which is used to set the race of the engine?

AFR screw is made up of brass or copper. It's shown on the image above. It's some image I picked from some xbhp thread. Don't unlock 'unlock these screws'.

**I_Live2Ride** · 05-25-2013, 04:51 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by lockhrt999 View Post

Don't know. Don't worry. AFR screw has a high margin for error. So even if the mechanic couldn't revert to good setting, you yourself certainly can with patience.

----consecutive posts auto-merged-----

Don't know. Don't worry. AFR screw has a high margin for error. So even if the mechanic couldn't revert to good setting, you yourself certainly can with patience.

----consecutive posts auto-merged-----

AFR screw is made up of brass or copper. It's shown on the image above. It's some image I picked from some xbhp thread. Don't unlock 'unlock these screws'.

Thanks a lot.. I have seen the mechanic doing something with this screw.... i'll play with it now..!
looks like mine is running on Lean, coz it gets heat up quickly and gives good mileage.. which way should AFR be turned to avoid overheating??

**Taahir** · 05-25-2013, 05:27 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by lockhrt999 View Post

Don't know. Don't worry. AFR screw has a high margin for error. So even if the mechanic couldn't revert to good setting, you yourself certainly can with patience.

----consecutive posts auto-merged-----

Don't know. Don't worry. AFR screw has a high margin for error. So even if the mechanic couldn't revert to good setting, you yourself certainly can with patience.

----consecutive posts auto-merged-----

AFR screw is made up of brass or copper. It's shown on the image above. It's some image I picked from some xbhp thread. Don't unlock 'unlock these screws'.

okie..he played with afr as well as idling...!! and listen me and ilive2ride are meeting in lonavala mcdonalds...at 7 pm...if interested let us knw..!

**yashasvi** · 05-25-2013, 09:54 PM

Hi

Welcome back lockhrt999, you were missed here, sir i salute your knowledge. I have been reading this thread from the begining, and you are one of the most DIY guy out there.

**s1d** · 05-25-2013, 10:50 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by I_Live2Ride View Post

Thanks a lot.. I have seen the mechanic doing something with this screw.... i'll play with it now..!
looks like mine is running on Lean, coz it gets heat up quickly and gives good mileage.. which way should AFR be turned to avoid overheating??

turning the afr screw anticlockwise richen's the mixture.. i suggest you turn it out anticlockwise by half a turn (or lesser) to begin with. once you do that, only then touch the bigger screw (the one with the spring on the outside) to adjust the idle rpm (around 1200rpm)

**lockhrt999** · 05-26-2013, 12:05 AM

Re: Clear my doubts please-Pulsar 180

Originally posted by I_Live2Ride View Post

Thanks a lot.. I have seen the mechanic doing something with this screw.... i'll play with it now..!
looks like mine is running on Lean, coz it gets heat up quickly and gives good mileage.. which way should AFR be turned to avoid overheating??

Overheating happens because of excessive air with respect to fuel. That means excess oxygen for burning for the given quantity of fuel. As the image says, you need to loosen or turn that screw anticlockwise to introduce more fuel in. (as s1d said).

Originally posted by Taahir View Post

okie..he played with afr as well as idling...!! and listen me and ilive2ride are meeting in lonavala mcdonalds...at 7 pm...if interested let us knw..!

I couldn't even if I want to, I'm rather busy on weekends. Lemme know what you guys cooking up.

Originally posted by yashasvi View Post

Welcome back lockhrt999, you were missed here, sir i salute your knowledge. I have been reading this thread from the begining, and you are one of the most DIY guy out there.

oh I'm flattered. I do like tinkering and fiddling quite a lot. Most of the knowledge I learned, that by crunching others knowledge and experience from the websites like this xbhp. I was once a noob and I still am. A proud geek, I am.

**Taahir** · 05-26-2013, 12:31 AM

Re: Clear my doubts please-Pulsar 180

Originally posted by lockhrt999 View Post

Overheating happens because of excessive air with respect to fuel. That means excess oxygen for burning for the given quantity of fuel. As the image says, you need to loosen or turn that screw anticlockwise to introduce more fuel in. (as s1d said).

I couldn't even if I want to, I'm rather busy on weekends. Lemme know what you guys cooking up.

oh I'm flattered. I do like tinkering and fiddling quite a lot. Most of the knowledge I learned, that by crunching others knowledge and experience from the websites like this xbhp. I was once a noob and I still am. A proud geek, I am.

hello, if your afr is still at factory setting, can u plz tell me exact number of turns...mine is ug4...! u cn bring it down to zero by simultaneously counting the turn, nd get it back to original, only if you want to, it would be a great help..!

**yashasvi** · 05-26-2013, 01:11 AM

Re: Clear my doubts please-Pulsar 180

This thread has been dead since a long time budy, give life to it again

**lockhrt999** · 05-26-2013, 01:16 AM

Re: Clear my doubts please-Pulsar 180

Originally posted by Taahir View Post

hello, if your afr is still at factory setting, can u plz tell me exact number of turns...mine is ug4...! u cn bring it down to zero by simultaneously counting the turn, nd get it back to original, only if you want to, it would be a great help..!

My factory setting was 2.7 turns from fully closed. Exactly one year back I tuned it to 2.2 turns from fully closed to make it more lean. Happy anniversary myself

http://www.xbhp.com/talkies/motorcyc...tml#post820241

Originally posted by yashasvi View Post

This thread has been dead since a long time budy, give life to it again

I agree.

**s1d** · 05-26-2013, 10:36 AM

Re: Clear my doubts please-Pulsar 180

Originally posted by lockhrt999 View Post

My factory setting was 2.7 turns from fully closed. Exactly one year back I tuned it to 2.2 turns from fully closed to make it more lean.

[MENTION=62079]Taahir[/MENTION] - hope you know that 1 turn = 360 deg rotation of the screw.. if you miscalculate it you are in for a big screw up.. pun intended

**Taahir** · 05-26-2013, 01:28 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by s1d View Post

@Taahir - hope you know that 1 turn = 360 deg rotation of the screw.. if you miscalculate it you are in for a big screw up.. pun intended

Yeah i know that...!!

Originally posted by lockhrt999 View Post

My factory setting was 2.7 turns from fully closed. Exactly one year back I tuned it to 2.2 turns from fully closed to make it more lean. Happy anniversary myself

http://www.xbhp.com/talkies/motorcyc...tml#post820241

I agree.

thanx a lot, and what idle rpm have u kept...?If we keep the mixture lean,i.e at 2.2 turns, will it affect the performance of the vehicle...??

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can the change in brand of engine oil be the reason for oil leakage...dint happen with me, just asking out of curiosity...!

**lockhrt999** · 05-26-2013, 03:33 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by Taahir View Post

thanx a lot, and what idle rpm have u kept...?If we keep the mixture lean,i.e at 2.2 turns, will it affect the performance of the vehicle...??

Idling should be standard no matter whatever you are tuning. I think it's a misconception that too lean mixture increases the average and too rich mixture increases the performance. Only at the proper tune you get the best performance along with the best average.

For example assume that engine is running leaner, so you think you're increasing the average by introducing less fuel but you are wrong because with leaner tune, performance will degrade and to make up that you'll unconsciously rip the throttle even more to introduce more fuel in the engine. So at the end you're getting bad performance as well as bad average. Same goes for richer tune.

In my case, I observed in my stock settings that bike was knocking a little. So I turned the screw towards leaner side which means I corrected the tune and not made it lean. See, every engine is unique in its own way. There are thousands of variables which makes every engine behave different from one another like aging, type of engine oil, drastic change in air filter, altitude from sea level, fuel quality etc etc. My best settings shouldn't have to be applicable for your engine.

Originally posted by Taahir View Post

can the change in brand of engine oil be the reason for oil leakage...dint happen with me, just asking out of curiosity...!

Change in oil brands doesn't cause oil leakage. Oil leakage occurs due to breakage of substandard sealing of engine parts. All pulsars (except P220 and 200ns) suffer due to substandard sealing of engine parts. Let alone change in the brands, even mixing of oils doesn't cause any harm to engine.

It's not important why the sealing is substandard but what causes to break it in the first place and in turn causes oil leakage. There are several reasons what causes to break the sealing. Use of non-recommended grade of oil will cause the oil being too less viscous, sip out of the engine anyhow. Another reason is, cleaning agents present in the oil chew out the engine sealing or the use of engine flush chemical.

Best engine oil for P180 is 15W50 grade Motul 5100 Semi-synthetic. It has an ingredient called ester, which is nothing but a cleaning agent. It helps to keep the engine oil clean up to some extent. But if you use full synthetic oils from motul such as motul 300 and 7100, they have double dose of that ester. Excessive ester end up eating engine seal material. That's why if you use those oils in the most likeliness you'll face oil leakage.

**Taahir** · 05-26-2013, 07:28 PM

Re: Clear my doubts please-Pulsar 180

Originally posted by lockhrt999 View Post

Idling should be standard no matter whatever you are tuning. I think it's a misconception that too lean mixture increases the average and too rich mixture increases the performance. Only at the proper tune you get the best performance along with the best average.

For example assume that engine is running leaner, so you think you're increasing the average by introducing less fuel but you are wrong because with leaner tune, performance will degrade and to make up that you'll unconsciously rip the throttle even more to introduce more fuel in the engine. So at the end you're getting bad performance as well as bad average. Same goes for richer tune.

In my case, I observed in my stock settings that bike was knocking a little. So I turned the screw towards leaner side which means I corrected the tune and not made it lean. See, every engine is unique in its own way. There are thousands of variables which makes every engine behave different from one another like aging, type of engine oil, drastic change in air filter, altitude from sea level, fuel quality etc etc. My best settings shouldn't have to be applicable for your engine.

Change in oil brands doesn't cause oil leakage. Oil leakage occurs due to breakage of substandard sealing of engine parts. All pulsars (except P220 and 200ns) suffer due to substandard sealing of engine parts. Let alone change in the brands, even mixing of oils doesn't cause any harm to engine.

It's not important why the sealing is substandard but what causes to break it in the first place and in turn causes oil leakage. There are several reasons what causes to break the sealing. Use of non-recommended grade of oil will cause the oil being too less viscous, sip out of the engine anyhow. Another reason is, cleaning agents present in the oil chew out the engine sealing or the use of engine flush chemical.

Best engine oil for P180 is 15W50 grade Motul 5100 Semi-synthetic. It has an ingredient called ester, which is nothing but a cleaning agent. It helps to keep the engine oil clean up to some extent. But if you use full synthetic oils from motul such as motul 300 and 7100, they have double dose of that ester. Excessive ester end up eating engine seal material. That's why if you use those oils in the most likeliness you'll face oil leakage.

This could not have been more perfect...!

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