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**Noor** · 06-28-2011, 03:02 PM

Query approved

**xionite** · 06-28-2011, 03:08 PM

your clutch plates might need to be replaced.

Originally posted by ceasar View Post

Method of checking mileage?
i completely emptied the tank.. poured in 1 litre.

i don't follow.

the pulsar tank has an unusable (below reserve) 2 litres or more.

so if you emptied the tank... the bike wouldn't even start.

**abhichotu.abhi** · 06-28-2011, 04:07 PM

@CEASER:

Am facing the same issue, although I donot bother as I seldom ride it above 40kmph. I think that the carburetor tuning (in my case) is not alright, I have checked the tappet settings they were alright. What's the mileage on the ODO?

**ceasar** · 06-28-2011, 06:57 PM

Originally posted by xionite View Post

your clutch plates might need to be replaced.

How does one can recognize that clutch plates are worn out? what are the signs?
when does one needs to change clutch plates?

Originally posted by xionite View Post

i don't follow.

the pulsar tank has an unusable (below reserve) 2 litres or more.

so if you emptied the tank... the bike wouldn't even start.

yes i filled in 1 liter in a bottle and rode it till it had no petrol left(till it stopped)

Originally posted by abhichotu.abhi View Post

@CEASER:

Am facing the same issue, although I donot bother as I seldom ride it above 40kmph. I think that the carburetor tuning (in my case) is not alright, I have checked the tappet settings they were alright. What's the mileage on the ODO?

its 16000Kms... it is not carb tuning, as i said i am used to tuning and at the same setting (2.5) turns it should give me more mileage as i am making it lean..but then the spark plugs says otherwise.

earlier setting was 3.5 turns and and i had faced no problems with that.

**princesirohi** · 06-28-2011, 09:20 PM

check whether chain is too tight, rotate it completely, at no point it should be too tight.
check whether any of the brakes are too tight.
check for other noises coming from bike-like worn out bearings or front or rear wheel or chain sprocket bearings.
clean and check if carbeurator is functioning properly, check jets, float, float pin, slide etc.
check if air filter is clean or not.
check the hose pipe connecting carb and air filter box, whether there is any leak.
check and or try rreplacing the sensor / switch on the carb. ( not able to recollect its name) which switches between two different ignition maps.
check clutch plates.
check block piston.

also check if nobody is stealing petrol from your bike.

**ceasar** · 06-28-2011, 10:08 PM

Originally posted by princesirohi View Post

check whether chain is too tight, rotate it completely, at no point it should be too tight.

Its a bit difficult, i have never examined the chain so it looks like normal to me,i cannot determine the difference between too tight and just tight.. chain should be tight AFAIK,i'll get it checked!
check whether any of the brakes are too tight.
NO
check for other noises coming from bike-like worn out bearings or front or rear wheel or chain sprocket bearings.

there is a tak tak noise coming when i rotate the tyre ...like clicking..
clean and check if carbeurator is functioning properly, check jets, float, float pin, slide etc.

Bike was serviced at CBZ just a week ago.Golden service.
check if air filter is clean or not.
same as above
check the hose pipe connecting carb and air filter box, whether there is any leak.
serviced
check and or try rreplacing the sensor / switch on the carb. ( not able to recollect its name) which switches between two different ignition maps.

reed switch? i have done no changes to anything,its completely stock nobody touched reed switch
check clutch plates.
I will.
check block piston.
Clocked only 16k...

also check if nobody is stealing petrol from your bike.
NO

Answers in BOLD

Also by seeing the color of the spark plug what do you think? its has grey tip.

**abhichotu.abhi** · 06-28-2011, 10:24 PM

@ceaser:

For worn-out clutches, as you increase the throttle there is increase in RPM but the bike does'nt moves as fast as the RPM grows. It happens like you give throttle and bike moves too slowly, it feels like when you press clutch slightly and accelerate the bike, when this things happens in normal riding, it means you clutch needs change. Or check clutch play.

**ceasar** · 06-28-2011, 11:10 PM

Originally posted by abhichotu.abhi View Post

@ceaser:

For worn-out clutches, as you increase the throttle there is increase in RPM but the bike does'nt moves as fast as the RPM grows. It happens like you give throttle and bike moves too slowly, it feels like when you press clutch slightly and accelerate the bike, when this things happens in normal riding, it means you clutch needs change. Or check clutch play.

The thing with my bike is as i increase the throttle neither the RPM raises nor the bike moves slow,its just that it is getting difficult for it to reach higher rpms,the accelerator feels heavy it is not crisp...by putting little effort on twisting it reaches the desired RPM,the point isthat effort should not be required to do that... also when i reach say 4.5 k RPM...it feels like that the bike is not responding to the throttle twist...i twist the throttle but the rpm raises slowly and engine makes more sound.

**abhichotu.abhi** · 06-29-2011, 12:11 AM

Originally posted by ceasar View Post

The thing with my bike is as i increase the throttle neither the RPM raises nor the bike moves slow,its just that it is getting difficult for it to reach higher rpms,the accelerator feels heavy it is not crisp...by putting little effort on twisting it reaches the desired RPM,the point isthat effort should not be required to do that... also when i reach say 4.5 k RPM...it feels like that the bike is not responding to the throttle twist...i twist the throttle but the rpm raises slowly and engine makes more sound.

Same here, I don't know this happens to me after some services, this time also it is happening and I have just serviced the bike at BAJAJ SC. Very strange.

**princesirohi** · 06-29-2011, 12:26 AM

now, i am going to give a more detailed answer-- please refer this with original points raised by me, and along with your replies=

if the chain is too tight, it will reduce the top end i.e. top speed. if you can't check yourself. get it checked by a mechanic, and to remove this factor while troubleshooting, you can make it slightly loose, so that this factor is completely eliminated.
you already mentioned that brakes are not tight. they are ok.
try to distinguish between normal noise and bearing noise, other wise get all bearings (front wheel, rear wheel, sprocket bearings) checked by mechanic. they will probably check it by measuring the play. if you are not using sealed bearings, try to get them lubricated by grease etc. (btw, i always use sealed bearings)
gold, diamond or platinum servicing, i don't think they open the carb in servicing, and even if they do, they don't check minutely. so do get all the parts mentioned checked thouroghly.
agreed, air filter may be ok.
nobody checks hose pipe in servicing, take my word for it, its too trivial to check. and it is not written in any service manual to check it. they are trained, not to check it.
yes, reed switch, i am not saying that you have modified it. stock one can become faulty. isn't it.
if all these fail check clutch plates
and then finally block piston.

by looking at the colour of your spark plug, picture shows it white, so i think you are running lean.

now, i will tell you the most important thing, i too have faced this similar problem, my bike seems to get stuck at somewhere between 65-75 kmph and does not accelerate even on full throttle, then if i encounter a slope in road its speed increase slowly, and if somehow it reaches a speed of 80-82 kmph then it used to shoot like an arrow reching 100+ in no time. this problem had occured with me so many times. the culprit was -

reed switch, so try changing it, it is very cheap.
faulty carb, the carb slide (black cylindrical moving part) had scouring on it due to which it used to get stuck. luckily my mechanic had a spare one, so he gave it to me for free. it costs around 500-600 bucks.
next time carb diaphram was faulty, it had become hard. so replaced it.
once the hose pipe went loose and air was being sucked in through a leak, so engine was running too too lean.

i think one of these is the culprit, as you have mentioned, your clutch plates seems to be ok, although 16000 kms may mean end of clutch plates. but atleast your rpm shoud rise.

if nothing works then obviously your block piston is ruined. but before opening the block piston, get a compression test done.

**abhichotu.abhi** · 06-29-2011, 12:35 AM

@princesirohi:

What is REED switch? Please explain.

**pavanchirmade** · 06-29-2011, 12:58 AM

Reed switch is the little magnetic switched mounted on the carburettor. It detects the position of the throttle valve. The semi circular disc has a magnet mounted on it which opens or closes the switch. This switch is connected directly to the CDI

1. Magnet
2. Reed Switch

**ceasar** · 06-29-2011, 11:03 AM

Originally posted by princesirohi View Post

now, i am going to give a more detailed answer-- please refer this with original points raised by me, and along with your replies=

now, i will tell you the most important thing, i too have faced this similar problem, my bike seems to get stuck at somewhere between 65-75 kmph and does not accelerate even on full throttle, then if i encounter a slope in road its speed increase slowly, and if somehow it reaches a speed of 80-82 kmph then it used to shoot like an arrow reching 100+ in no time. this problem had occured with me so many times. the culprit was -

Princesirohi thanks for your detailed reply.

I'll get those things checked.

I am aware of your problem,i was watching your thread closely however my problem is not as serious as yours,it never gets stuck at any time...it just that it requires a hard twist.After the servicing i went for a highway runn and i touched 112 with very strong cross winds and with a pillion,there was no discontinuity in speeds,the acceleration was uniform...but it is not crisp..it feels heavy.. also when idling when i twist the throttle it is crisp..the same crispiness hsould be there when i ride it too but it is not the case once i engage in gear the throttle feels heavy...i think either reed switch or chain is the culprit.

And one more thing if i am making it lean then how come the mileage is still 35 ... i travelled 100 kms on the highway maintaining speeds above 90 and sometimes redlining...the mileage returned was still 35..how come?

**abhichotu.abhi** · 06-29-2011, 11:25 AM

Originally posted by ceasar View Post

And one more thing if i am making it lean then how come the mileage is still 35 ... i travelled 100 kms on the highway maintaining speeds above 90 and sometimes redlining...the mileage returned was still 35..how come?

Ceaser, lean mixture does'nt always helps in increasing the mileage, it increases but no dramatical changes will be observed.

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Pulsar 180 UG3 troubling me( mileage + throttle response)

Pulsar 180 UG3 troubling me( mileage + throttle response)

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