Query approved.

my god!!!

the thread name suggests a different meaning altogether

@ madhav krishna: banned

@sunig: infraction given

Question - Do you experience the jerk when the throttle is closed (decelerate) or when it is opened (accelerate)?

What is that "some"? Can you ask & put it here pls?

Are you saying the vehicle stops while running for no reason as if the fuel is empty? If that's the case, then consider your problem is solved

There're several reasons as why this issue could occur. If you've a friendly neighbourhood mech, then would it be possible to swap the ignition coil from another motorcycle & give a try if the issue is resolved? Regarding the clutch, ask them what that "something" means.

Do one thing, ride it for about 100+ Kms & post the pic of your spark plug.

BTW, what motorcycle are we talking about here? I'm no good in astrology

@DK & @Xinoite - no silly feeling guys lol

LOL dint thought of it in that way while deciding the thread name
I experience this when the throttle is opened, especially in lower revs. It disappears in higher revs.

They were talking about a clutch spring which isnt working. But i dont think that its anything related to the clutch as this problem started just after the service.
Yes it behaves as if there is no fuel left. While accelerating it behaves as if the fuel tank is empty & starts giving jerks but as soon as the rpm goes up it stops. Sometimes the engine stalls when i press the clutch lever. I hope that my problem is solved.
I cant do that as it would ruin my warranty. The local mech told me that the problem might be arising because of water entering the CDI coil while washing the bike which might have short the wires.
Will do it without fail
Am talking about yamaha gladiator. Since i already gave a link to my post in the ownership thread. I dint care for mentioning the bike name. Sorry for that.

Ok Madhav, from the cues...
AND
AND
I'd strongly check the AF mixture in the carb. A poorly tuned carb is BOUND to give this problem. I've been experiencing the same issue with my Rx, but mine is totally a different case as my carbs are bigger & no matter what I do, I'm unable to lean.

Anyway, coming to your issue, all the above issues can occur, if...
1. The air entering through airfilter box is insufficient.
2. The breather hole is not cleaned & there's dirt between the rubber & breather hole underneath the fuel tank cap
3. A poorly tuned carb. What MIGHT've happened is, the SVC guys would've cleaned the carb, but would've not cleaned the airfilter, so the clean carb expects more air flow which the airfilter is unable to deliver due to dirt
4. Another 2 possibilities, which I hate saying, they may not even have opened the carb & cleaned OR worst case, a part swap might've happened . Anyway these are extreme thoughts, let's not think about these for now.

If I were you, I would've pounced back asking, why the hell they didn't change? If they knew about the issue, what made them fixing it?

Lol; that is completely wrong. Who told you that? Shows someone is lazy to carry out that work.

Quite possible, but that's not CDI coil, its IGNITION coil & water CANNOT seep through CDI that is sealed with epoxy.

I have also thought the same & asked the SC guys about it. When i argued a little bit further on this topic they were like "mechanic hum hai ki aap??". And they have made their own conclusion & some non sense story about clutch plates and all.
Now sir tell me how can i further argue with such people who think themselves as great scholars & think us as fools.
Its not like am lazy or something but the matter is that am a student & i have some limits for spending the money & cant afford any harm to the warranty.
Hope you understand.

Well, don't argue harsh, just snub them or simply smile & talk to the floor manager or the A.S.S head on the issue politely.

Err...I'm not sure you've understood what I'm talking about. Are you saying the owner's manual stated that changing ignition coil voids warranty? Well I don't think so. There's no label or seal for one to change the ignition coil. If you suspect that, take it to Y.A.S.S & tell them you're suspecting the ignition coil or simply change the clutch spring . Changing clutch spring takes more time as one has to drain oil. So easiest they'll do is to check the ignition coil. Stay with them when they do it to see how they're carrying out. One doesn't need to touch engine to change ignition coil, it should be located right under the tank & takes only 15 minutes to change.

Ok, but did you get what I tried to say? Otherwise Google for these terms & understand their basic principles & then you'll understand what I'm talking about. It also helps you build confidence over time

PS - Madhav, pls do multi quote when replying, it becomes extremely difficult to copy paste & reply by points here

@argee: warranty void issue means madhav thought you are asking him to ride the bike at speeds of 100+kmph, whereas i think you are asking him to simply ride the bike for 100+ kms at a comfortable speed.

there can be problems with water and CDI. whenever i wash my bike, mechanic has to remove the connectors of CDI and dry them otherwise my bike gives similar symtoms, so it might be possible that local mechanic is right. water will not enter the CDI but it can enter CDI connectors. tell your service center to remove CDI completely and make it dry with forced air gun and also tell them to dry the connectors. then see ....it may help.

also check the pilot jet of carb......since this happens only at low rpms...

also check if idling screw is set properly. your bike should idle at no less than 1200 RPM. you can manually see that if your bike has a tachometer.

if there is some problem with clutch spring, they should replace it for free, since it is under warranty. right.
but clutch springs hardly go bad.

and yes when your problem is solved, do inform us what the actual problem was.

Oh!!! is it? Madhav, I only meant only 100 Kms & not 100 Kmph. But I thought he understood that point

CDI or battery terminals? IIRC, no one removes the CDI connection before water wash, it will only make matters worse isn't it?

+1; I'd a 19 yrs old Rx until a few months ago & there were no issues with springs that I've faced so far.

+1

I too faced jerking problem with my pulsar 150, but I dont know if the case matches with yours. Mine was like a severe jerk in half clutch, and it was when I switched to castrol from bajaj engine oil. Problem was solved when I switched to another oil. However, what is the age of your bike?

Well i always speak to them politely.


Will surely try that. I thought that the ignition coil lies beside the engine & for changing that we need to open the engine case which MAY break the warranty if its done at an unauthorised service centre.
Yes i did understood sir . I was a lil weak about these technical things like CDI etc. But i do understand them.
Will take care about it from now.
No dude. I did get aargee's point. I was saying that the opening of engine seal might void the warranty.
Thanks dude i will get it checked it ASAP
The bike does idle above 1200 RPM
This is where i was having doubt since no bike's clutch spring goes bad so early (at just 10k kms) & this problem arised just after the service.
Sure
Not at all. I understood your point in first time only. I was talking about the ignition coil replacement thing which MIGHT void the warranty.


I dint changed any engine oil brands man. I was earlier using agip & used it again now also. So its not any problem due to engine oil. BTW my bike is just 10k kms & 16 months old.

It could be as simple as breather pipe disconnected . Go and check if the breather pipe is disconnected/not connected securely or removed from the air box ?

Will check it soon. Thanks for the suggestion man