Hi All, I need your help to solve the problem that I'm facing in my Pulsar 150 UG3.
Firstly the changes that I've made to my bike are step holder assembly of P200, P135 tail, BA-2201 K & N air filter and P220 camshaft. (The problem below started before all these mods so there's no connection to these changes)

I recently started facing a problem that when i'm riding the bike.
The engine rev zone from 4k to 6k rpm in almost every gear feels like a dead zone with absolutely no power at all.
From 6k+rpm onwards it acts normal with the speeds also climbing up unlike the dead zone (4k to 6k rpm)

I suspected the CDI unit being faulty so I tried the method of revving the bike hard while in neutral, and the revs do not reach the redline at all. It stops at 9k rpm and revs fall down like normal. (It used to go till 10k or 11k earlier i suppose)
But again while riding the bike i'm able to rev the bike to the redline in all gears. So is it a CDI problem still? I tuned the carburetor just as mentioned in the UT but i feel like the problem is elsewhere.
Clutch plates are new and that's not the issue i believe.

This problem is very frustrating as there's no response to the twist of the throttle in 4k to 6k rpm area.
Can someone please help me solve my problem.

Waiting for your answers.

Well the mods thats you have done is new to knw especially done to the engine sector like K&N , Camshafts.
As for the problem of less power may not be all related to the CDI , cause CDI will make he bike miss fire the bike at high revs. What I think is the problem with the cam of P220 , I think it is not able to do the function than the stock for P150 engine .

AFAIK Camshafts play a pivotial role in making the explosion n all. I m not that techie engg but this is what I think . Try just to move back to stock 150cc Camshafts and see for issues resolve or not . If CDI is wrong , bike is bound to sputter/misfire .


Let us know for changes

Thank you for the reply rpmboy but i found out the problem area just a day ago from another experienced user. The carburetor required a thorough cleaning.
After doing that, the problem vanished.

Need some help.

Hi all,

Need some help. My pulsar 150 DTSi 2005 Model's silencer is completely gone. I've checked with a service center in porur, chennai(Madanandapuram) and one in ramapuram. And a spare part store in madanandapuram. All say the cost of the original silencer is 4500Rs. Can someone please tell if this is the cost of the silencer in chennai. Have anyone checked or changed the silencer for you pulsar 150 DTSi in chennai recently. They also say there is a first quality one available which is 2000 Rs, which i'm not OK choosing. i want the original stock pulsar silencer and a brand new one. Can someone please help?

Hi,

I would also like to share something which i've done recently to my pulsar 150 DTSi.
Changed the engine oil. Now its running on Shell advance. I could feel difference in performance after the oil change. I don't know if i still recommend it for other users.
Also changed the battery to Amaron Pro Rider. Cost is 1850. Took the old battery for 250. Another dealer offered to take it for 350(Competition!!)
The old battery was exide.
Changed the fuse as it was burnt up as i did not change the exide battery immediately after it drained. I had the exide battery for 3 years.
The fuse cost only 30 Rs and it was not a branded one. Planning to get branded one from the service center when i get my bike serviced next time.

I did all these Ramapuram(Chennai). The oil change was at Shell Porur. (Varun Enterprises).
Also had my bike water washed at the same place. Nice work. Cost 100 Rs. But they wash it like we do at our home. Used the spray gun to remove the dirt and then manually applied soap water all over and then the spray gun again. The bike was clean. But had to take to a mechanic to get the brakes and clutch lubricated. Has some one tried this. I don't think this a good idea.

This could be faulty electricals. Should be a loose connection to the head lamps. Get it checked at a service center or a known mechanic.

Along with that do check your rhs switch gear too. Just for testing you can use your friend's rhs switchgear for it.

Please post the results.

friends my pulsar 150 DTSI UG3 digital meter first digit from right side is not displaying what is the reason?

Can you please post a picture of the meter? When was the last time it was working good? What different happened after that?
Reasons could be water seepage into the internals of the meter circuit or the LCD panel screw might be loose.
If you're a DIY person, try opening it yourself and check the internals.

the problem is like that the bike is on 45 speed and the the meter shows 4 only and 5 is fade or sometimes not displaying

what is a swithgear? is that the one used on the RHS to switch on the Headlamps.

Has anyone customized the chain-sprocket set for touring? I am looking forward to do the same on my P150 UG 4.5, 7880 on odo by plonking in P220's set. I know this will make the bike more sluggish in acceleration part, but I am not that traffic light demolisher. Want my P150 to cruise at a bit higher on the speedo with low RPM. Curently it does 65-70 KMPH @ 5.5k RPM. This is generally where I restrict it on highways (don't like the noise at this point) to be more closer to smoothness, if at all it has any.

P220 chain set is too heavy..you can decrease 1-2teeths at rear sproket that can be done by taking the 180 UG1 chain set . This will give you mid - high band to 150cc . I hope it helps . P220 chainset is itself an pricey replacement cost compared to normal chain set .
AFAIK ,small rear-sproket gives u good top speed may be upto 115kmph , a Larger rear-sproket , lower the top end speed but good for acceleration in city . Keep front sproket stock .

Thanks mate. The top speed you mentioned is the true top speed or speedo indicated? I happened to have touched 123 KMPH on speedo. What I want is the RPMs should drop by 500-1000 clicks while touring, helps engine stay cool and drinks less I believe.

I'm facing a new problem. When I close the throttle & pull the clutch lever the RPM instead of coming down till 1-1.2 gets stuck at 3-4k mark. What could be the cause? I've tried tuning the bike but to no avail. My bike is giving a fuel economy of 36-38 kmpl. Is it OK? I drive 70 kms daily(to & fro) at speeds ranging between 65 to 75.