I have a pulsar 150 ug3 2007 model... I buy it with some engine issues..but i got it fixed.. but after that my bike starts overracing.. mechanic said it is normal ..he says that it will be become normal after some time..but rode it about 700 kms...but prblm remains same...plz help me to fix that issue

Dear All ,

I am having Pulsar DTSi 150 2010 model.. i have been regularly servicing and maintaining it. 6-8 months back i carried out engine work - changed block piston, valve lapping , changed valve seal , changed cluth & pressure plates at a trust worthy local mechanic.. Also got Spark plugs & air filter changed.. since then i have been facing issue with bike's mileage.. i am getting 37-38 in City and 45-46 ( at speeds around 65-70 kmph) on Highways.. i have been constantly using Motul 5100 15W50 for bike.. Could you let me know what is the standard mileage given by Pulsar 150 in both city and highway conditions.. i have been reading many forums where users mentioning the mileage around 50-60..
Please can you also give some suggestiong as to increase bike's mileage..
Many thanks !!!

Hello everyone, I own a p150 ug4.5 2013 model and this is my first post in this thread. My bike has done over a 35k kms running bone stock alongwith stock tyres and the chain sprocket set( no link cutting yet). After regular maintainance and sane riding still my bike gave up so early dnt knw why. The reason behind it is that the cyclinder head, valves , piston, clutch assembly, all gone kaput and is due for an immediate replacement.
This is how i have maintained my bike so far:-
1. Engine oil change- use mineral oil till 6k kms( changed it 6times in between at regular interval of 1k) , from 6k to 15k ive used SS oil ( oil changed at evry 1.5k kms) from 15k till now have been using FS oil which i have changed evry 2500 km. All oils being motul 3000,5100,7100 respectively nd grade 20w50.
2. Airfilter - didnt clean instead changed it evry 2-3k kms.
3. Battery - charged regularly and changed after 2yrs
4. Brakes pads - front changed two times being with a 15k interval, rear shoe changed twice.
5. Regular greasing of all the bearings changing them at regular intervals, tightening all the bolts,changed spark plugs evry 10k kms
6. Regular washing, servicing, cleaning carb, petrol tank , chain cleaning n lubing
7. My riding style- never cross 40 within city, always changing gear within 4k rpm,no half clutching n all, maintaining constant 70-80 kmph at highways during weekend rides. Checked top speed only once that too for a few secs and slowed down.
Now guys tell me have i made any mistake in maintaining as well as riding? If i have then plz tell and if i hvent then how come my bike gave up so early? Recently while riding my bike stopped suddenly after giving jerks and refused to start again. After going to my mech he started the bike by pouring some engine oil through the main spark plug hole and used the kick simultaneously for a few seconds. The next day i went to him a made him open the engine a check properly of what has happened. He then showed me that the valves had become black in colour , the piston nd the rings have worn out, the clutch still had life but i only told him to change the assembly. I know that if there is engine oil consumption or white smoke coming out then its reason is the worn out piston nd its rings but in my case neither there was any smoke or any mobil consumption.
One last question, as i am changing the piston, valves,clutch together so do i also need to change the timing chain,camshaft,scissor n balancer gear with their bearings ? Wont the engine make more noise if i use old parts with new ones like old cam with new piston? Pls guys help me out here im totally confused and need my babe to come back to life again as good as new.

Hello,
I purchased pulsar 150 dtsi bike 2 months before. Lastly i had done free servicing at bajaj center at 580 Km. After servicing the clutch was made hard by them, i and also my friends felt like that. After 1000 Km i am facing some problems.
1) The gearbox feels hard sometimes when increasing gears.
2) Gearbox makes noise when downshiftng the gears.
3) The gearbox sometimes slips back when shift from 4th to 5th when i am in speed around 35 to 40 kmph.
Previously i was not facing ssuch issues. The issues arrived after 1st servicing where they changed engine oil and made little bit hard clutch. currently bike ran 1200 km. Please suggest why this problem i am facing. Thanking You.

Overtighteneing of exhaust bolts can cause the crack . Or external impact on exhaust causes it.

Sorry for replying late, Yes Pickup is good and the exhaust smoke is normal


Anyhow, I took the bike another service center yesterday


They found there was a crack on the cyclinder head near the right side of exhaust pipe. which was causing the leak.. I had replaced the bike Head..


so Far I ride some 50 kms and no leaks found.Hoping not to find any more issue.....


But Not sure, what could have caused to head to crack!!!!!..


Thanks for your inputs....