Wizardvivek

My pulsar 150 UG2 , which ran around 21000 kms. A week back there was an oil leak problem , so got it fixed(some oil seal which costs around 600 bucks ) and replaced the old oil with a new Motul 3000 20w-40. A week later due to heavy rain my engine coil got shorted out , which costed me 1000 bucks for replacing it too. All these are done through a local mechanic , who is quite knowledgable compared to other bajaj service centers in Banglaore . But now whenever my bike crosses 40km/h , it gives a jerk as if I am running out of petrol (though bike has around 5 litres of petrol ). Moreover RPM is not going beyond 5000 which is were stuttering starts !So what could be the problem here. Tired of all the array of problems creepin up for past a month. FYI: NO 3rd party accessories are fitted into my bike.


Additional Questions
Because of these series of problems , I am postponing my upgrades for my bike , which are as follows(kindly do gimme some suggestions):

1. Want to fit HID light from philips/Osram for better road visiblity
2. K&N filters needs additional engine valve tuning?
3. Are there any run flat tires for Pulsar? if so any pricing details on it !.Morever my mechanic tells me that if i happen to puncture the tubeless tires(what is the difference between run flat vs tubeless) , then it's very hard to operate on that puncture than normal tires.

4.If i fit HID light do I need projectors too?

sunilg

Query approved.

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princesirohi

answers in bold.,............

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Tyre Sizes _ Spark Plugs

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Pinaki

When you changed your ignition coil , did you buy the Bajaj genuine part or local one ? Were you there in person when it was fitted by the mechanic ? Also there are loads of fake bajaj parts floating the market apparently , this was in the news too .Check that coil again .

vishnups17

Most probobaly problem with bad tuning/kaput spark plugs

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Wizardvivek

@princesirohi : I'm staying in Bangalore.

@Pinaki : I was not there when he was doing the job in it. But he told me that he only uses original spare parts from bajaj.

@Vishnups17 : Tuning ? ... means the throttle tuning and AFR tuning ?

phanikar

Check for current Distributor Coil (Which will be beneath the slot where the seat goes under the coil)-Most times ,when you wash the vehicle or ride in the rain,this is the main culprit.

Get the Carb cleaned - May be rain water has entered the carb( most likely this is not the case,since you are experiencing the problem only after 5k

Check Spark plugs
Is your bike switching off when you rev more than 5k???
Also small suggestion K&N and Bajaj don't seem to go well together somehow.Even if you increse the jet dia and tune the engine,things don't go well together.

Tubeless tyres are the most convinient.The answer from y
our mech is because most puncture wallas are still not aware of how to treat a tubeless tyre puncture. It is a simple DIY job any tom dick and harry can do at home.Check out MRF Zapper series. Tried and Tested very much durable.

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Eshan-P180

The 5000rpm mark problem existed in my bike too right after the oil seal change....PLEASE CHECK THE SPARK PLUG FITTING....MINE WAS WRONGLY INSTALLED AND IT HAD CRACKED INSIDE THE CHAMBER...PLEASE CHECK URS TOO...MIGHT BE THE SAME PROBLME....(TRY THIS IN NEUTRAL-- ACCELERATE STANDSTILL SEE IF YOU CAN HEAR BREAKING NOISE AROUND 5000RPM AND PULL) IF THATS THE SYMPTOMS THEN YOU NEED TO CHANGE THE SPARK PLUG WHICH HAVE WRONGLY INSTALLED.....

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Wizardvivek

When my bike goes beyond 5000 rpm , u'll get a feel that engine is some what choking , this is like "the bike , when petrol in tank is about to get over , u might get a feel like engine is reving up and down (in that case if u engage the clutch the bike will switch off ),and then we move the fuel cork to reserve " and bike goes normally , same as here when i'm below 5000 rpm the bike responds as it should , but beyond 5000rpm the bike starts to say "stammer".

Wizardvivek

Man, thats the same feeling I'm talking about . Moreover did ur bike get hotter than usual for shorter distances , at that point ?.. On Humor side , " These problems started coming up after i removed the shirt(tank cover ) of my bike so as to show it's muscle , may be it's getting cold , fever or something being half dressed like that " !! .