Announcement

**Bodkin Arrow** · 02-02-2012, 11:19 PM

Oil Levels are good.

No smoke issues from exhaust.

White fumes did appear (from engine), but this happened only once last week.

The noise that's usually heard @ 90+ kph now occours @ ~60 kph.

**ashwinprakas** · 02-03-2012, 12:56 AM

Originally posted by Bodkin Arrow View Post

The noise that's usually heard @ 90+ kph now occours @ ~60 kph.

Are you referring to a thumping like engine note, when accelerating hard???

**princesirohi** · 02-03-2012, 01:51 AM

Originally posted by Honda_CBF View Post

@ prince,
when first time i poured castrol activ it made my bike
-'slow-reving'
-harder gear shift
-burning smell when ridden hard.
-cold start problem
All these issues were also noticed by a friend of mine (pulsar ug3 owner)
then we both drained this oil very early.
.
20w50 is recommended by BAL for UG 4.5 so if 20w40 is used then overheating will surely occur.
.
May be this oil is average by your standards but mine says its worst (also comparing with price)
sorry for disagreement bro but its just my opinion by experience.

ofcourse we can disagree, ....

but i will give you my opinion,---->

if you suffered from these problems after using castrol Activ 4t oil, i am damn sure it was a duplicate product and not the original.

one more thing i will say, Pulsar 150 is not a high performance bike, neither it is a high revving engine nor a high compression engine, even if BAL says 20w50 oil and we use 20w40 oil, it should not cause burning oil smell and strange noises during normal running.

most importantly uptill UG3, BAL recomended 20w40 oil, and the engine of Pulsar150 UG4.5 is not something very different from UG3, so even if now BAL says use 20w50 oil, if you use 20w40, nothing bad should happen.

most importantly, plz try to understand, --

burning smell is due to --> oil getting burnt, which is due to -->engine overheating. it is not vice-versa, see--

oil is getting burnt because engine is overheating, its not that engine is overheating because of oil getting burnt.

also remember a good oil may mask the problem, but it does not mean the problem was with the oil.

**aargee** · 02-03-2012, 08:32 AM

Originally posted by Bodkin Arrow View Post

Here are the images.

I was expecting to post you something like the images in - http://www.xbhp.com/talkies/517196-post.html

Anyway, the point is, see if there're any white colored areas or white residues over the plug. Ideally it should be in brownish black all over, to indicate that the vehicle is running a right AF mixture. I'm suspecting in your case that it should be white, meaning, your AF mixture is lean & the carb has to be tuned.

One primary question which I should've asked earlier, how are you sure that the engine is overheating? It could be normal too, any concrete proofs?

On the engine oil front, can you confirm the grade of your engine oil? Is it 20W-50, 20W-40, 10W30 etc? Also confirm the type if it is Mineral, SS or FS; and, pls confirm if you changed the engine oil by yourself or through BASC or any mechanic in your locality.

**Honda_CBF** · 02-03-2012, 08:45 AM

@ Prince,
yeah, i also think it was a fake oil. Also a can of power1 gave problems that too purchased from castrol dealer!!
I'm sacred of castrol now.
About burning smell; some bad quality oil (read fake oils) can burn (technically, its oxidised) in crankcase even under normal temperatures giving out burning smell and causes problems.
And about oil grade recommendations; yes no major changes in engine so 20w40 should work fine atleast under normal riding.
.
Btw, thread starter has found out the problem and thats with spark plugs, not engine oil. So its kinda of topic, right??
I believe we should move on to "engine oil" thread for further discussion..

**Honda_CBF** · 02-03-2012, 08:50 AM

@ Prince,
yeah, i also think it was a fake oil. Also a can of power1 gave problems that too purchased from castrol dealer!!
I'm sacred of castrol now.
About burning smell; some bad quality oil (read fake oils) can burn (technically, its oxidised) in crankcase even under normal temperatures giving out burning smell and causes problems.
And about oil grade recommendations; yes no major changes in engine so 20w40 should work fine atleast under normal riding.
.
Btw, thread starter has found out the problem and thats with spark plugs, not engine oil. So its kinda of topic, right??
I believe we should move on to "engine oil" thread for further discussion..

**princesirohi** · 02-03-2012, 02:10 PM

Originally posted by aargee View Post

I was expecting to post you something like the images in - http://www.xbhp.com/talkies/517196-post.html

Anyway, the point is, see if there're any white colored areas or white residues over the plug. Ideally it should be in brownish black all over, to indicate that the vehicle is running a right AF mixture. I'm suspecting in your case that it should be white, meaning, your AF mixture is lean & the carb has to be tuned.

One primary question which I should've asked earlier, how are you sure that the engine is overheating? It could be normal too, any concrete proofs?

yes, plz answer this, as i too was doubtfull, thats why i asked u a lot of questions.

On the engine oil front, can you confirm the grade of your engine oil? Is it 20W-50, 20W-40, 10W30 etc? Also confirm the type if it is Mineral, SS or FS; and, pls confirm if you changed the engine oil by yourself or through BASC or any mechanic in your locality.

plz post clear, crisp and close-up photos of plugs

Originally posted by Honda_CBF View Post

@ Prince,
yeah, i also think it was a fake oil. Also a can of power1 gave problems that too purchased from castrol dealer!!
I'm sacred of castrol now.
About burning smell; some bad quality oil (read fake oils) can burn (technically, its oxidised) in crankcase even under normal temperatures giving out burning smell and causes problems.
And about oil grade recommendations; yes no major changes in engine so 20w40 should work fine atleast under normal riding.
.
Btw, thread starter has found out the problem and thats with spark plugs, not engine oil. So its kinda of topic, right??
I believe we should move on to "engine oil" thread for further discussion..

let him come back and confirm that his problems are solved.

@ thread starter: have you checked all the things i had listed and you only replied to few of my questions.

**Bodkin Arrow** · 02-04-2012, 06:25 PM

check tyre pressure and correct if required. front-28 rear-32.

No Issue.

very important - check chain tightness/slack. a chain too tight may give similar problems. check if the chain is too tight. and check at all locations throughout the length of chain.

as said earlier, if tyre pressure and chain tightness is ok.

check if either front or rear brakes are too tight, check by rotating the tyres while on center stand. wheels should rotate freely and there should not be much of a "grinding sound".

All good.

check both wheel bearings and sprocket bearings.
the idea of checking the above is to find out if there is any obstruction in the bike to run properly.

Again fine.

i am assuming you have not put any mudflap of cardboard in front of engine, like many people do in rainy season. as it obstructs the flow of air to engine.

No Mud Flap.

now the engine is overheating and there is a burning smell from engine, burning smell is the smell of burning clutch plates caused either by clutch plate slipping or engine overheat.
such situations also arise when you ride too slow for too long like in bumper to bumper traffic, so that is not a problem, or stop go situations in hill climbing. make sure you are not in these two situations.

No such traffic/ No hilly road.

also check oil level?
also check if oil is leaking from somewhere, because burning oil will also produce sound. if there is oil on or around engine or gearbox, when it gets heated, it burns and give burning smell.

I got the oil replaced when I sensed the oveheating issue.

now you also need to tell us--

is there too much smoke from exhaust?

No.

you said there is strange noise from engine, you need to identify the noise, what type of sound is it? and from where it is coming??

It is the usual noise which is heard when we accelerate hard.

you also have to tell whether this problem started after doing servicing or in between??

After 1 month of the servicing (done in Dec last week), this started.

you said one year old pulsar and only 4000 kms done, it means you must not have done all free servicing properly? correct me if i am wrong..
is this burning smell coming after you started the bike after letting it stand untouched for months??

The idle period was for about one and a half month (Nov-Dec). Last week of December I had done my first paid service immedeately after the idle period (3rd Overall Service, Missed the 3rd free service)

**Bodkin Arrow** · 02-04-2012, 06:32 PM

After I re-fitted the same spark plug, there was no strain (that was there earlier) above 55-60 kph, ride was smooth. Moreover, the gearshifts that were hard before are not hard now (after refitting).

There are no such white patches on he spark plug.

The overheating still persists.

Sorry for late reply.

Announcement

Pulsar 150 Overheating

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