Hi friends,
Recently got my pulsar ug 4.5 engine overhauled at 28500kms on odo, bacause it had started sipping engine oil. Engine piston and cylinder kit was replaced with standard kit from Bajaj. Valves too were replaced. After overhauling I observed white smoke during cold starts asked the mechanic about it but he was not ready to accept that there was any problem. After observing it for 2000kms I found that bike was still consuming about 60-70 ml per 400 kms. Got engine opened once again, Changed the piston rings. Now the white smoke is gone for good. But still spark plugs are gettind dirty. There is a blackish liquid on spark plug threads and black residue on negative electrode. I am posting pics of spark plugs which have completed 16000 kms. Please tell me what is the problem left now.

All you got to check out is the plug of the wires ( generally it is 5 pin, earlier it used to be 4 pin) i had to change the LHS switchgear back in 2015. At then, i put on the new one with 5 pin. Since then i guess it hasnt changed. But for confirmation just check out the plug from any mechanic or yourself, get a similar one.

Another question, can I fit LHS switchgear of 2017 pulsar 150 in pulsar 150 ug4.5 ??

You can do that by yourself. You can connect one to the battery, other to any plug which feeds the positive wire. Attach a switch though

No replies at all ? Does anyone know the wiring for connecting fog lights to p150 ?

Get Ur tappets adjusted if needed.

Hi friends,

My Pulsar 150, just 7 months old, only 4000 kms driven is making a ratling noise. It is coming from the engine. Service centre guys are telling it is normal sound and engine has 2 years warranty, so just ride. When I checked with other pulsars, I'm not getting any such sound.

hi,i have pulsar 150 ug 3 edition. Recently i did half engine work to my bike and have changed bore kit,valve set,timing chain,timing pad,cluth plate.The runt smooth for about 1500 kms and now a problem is started.The rpm varies continuosly at around 6k and bike is not throtle above 8k.It feels like air intake is more.Some time it is misfiring frequently and engine is getting harsh at 6k rpm itself.Mechanic said it is carbaretor problem.I found the diaphram of carbaretor is probem and i replaced it.Now mechanic is saying it is cdi problem.I tried with some other bike cdi but i see these rpm variation at 2k with it.The problem is not getting solved.Please help me

Hi friends, this is my first post to xbhp.
I have pulsar 150 UG4 2013 model with 25700 KM. All services done in authorized Bajaj service center at Bangalore. No outside work so far.
From past one week I am observing that oil is coming out of my silencer. Given to the service center where I used to give from day 1 in Bangalore.
There is no white\Black smoke coming from exhaust. Engine is fine. Last service done at 23400KM.

Here are the assumption made by the technicians at first sight.

1. Engine bore kit replacement needed
2. Silencer change is needed.


Since it ran only below 26000 KM I told there no chance of bore kit & silencer replacement since I have done all the services on time (4000-5000 KM).
They have checked the pulsar job code history and found that all the service were done in their center only.
Advised me to keep the bike there for 1 day. Morning they will check whether any white smoke coming out while starting.
I went back on second day and they have told like there is no issue with the piston. Engine oil is fine. No smoke is coming while starting.
Gave me the explanation that probably children/somebody have put some oil from backside to the exhaust.
I have asked is there any issue with piston ring? They told no issues are there.
I am not satisfied with the response so far. Anybody have experienced this kind of oil leak in past.
Please suggest the path forward

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