Originally Posted by soumen.sam

Thanks for you comments pabi, please be specific which part you want to learn?

As I’ve said it’s a 100% technically maintained bike. And as it has done only 8k+ km so its very general that I didn’t disassembled the engine components so far, until it has any major problem. As for the basic things top to bottom, front to end every thing is 100% correct expect the correct nut/bolt torque, as I don’t have a torque wrench but still I never do oversight any bolts, try my best to keep them in specific range. Sparkplug gap to engine oil everything is fine. Even a loose leg/engine guard can produce low-massive vibration.

I ever hardly use a oil for max 2k km but even after 2k km still the oil level don’t decrease few millimeters and that means no way of leaking, the piston is intact and the engine is peaty much healthy.

As per your point without disassembling there have no way to check the smoothes of the piston movement, and I don’t want to disassemble it any way.

I’ve checked for any loose nut/bolts which are holding the engine into the frame but no luck, however one nut was a little loose longtime back but after correcting it still no improvement.

As per my knowledge an imbalance piston can cause the vibration, but generally happens for multiple piston engines. And another thing is imbalance or loose/incorrect fitted camshaft can cause low frequent vibration after/between a specific RPM range. But 1st I prefer to check all basic possibilities so why I need an experts advice.

Originally Posted by Karthikeyan_M

hi Thanks for the reply.

Answers:
1)yes i didnt exceed 40 kmph till first service ie 500kms.
2)engine oil is as recommended by HH.But i am nt sure about the fill quantity. can i check it? how?

Originally Posted by Karthikeyan_M

Hi All ! i own a cbz xreme from june 2010.

I finished my forst service.till now completd 1100 kms .

I am worried about My bike's Engine.

After reaching 45 kmph the bike starts vibrating a "urrrrrrrrrrr"
sound is been produced []

Is the cbz xtreme always produce so?Cant i get smooth ride like ridding in pulsar.

I can even feel the vibrations near the place where my lap would touch, even @ 30kmph.

And one more weird thing, some times,bike sound like screaming,like if i give a heavy acceleration even i totlally close the throttle.

Kindly provide me your valuable suggestions and experience.

Originally Posted by pabi

Thanks for the helping hand, First i need help on Air Filter cleaning, Clutch wire adjustmetns[not plates], CArb tuning[i read the Carb tuning article from universal threads, if you wana tell in addition to that, Welcome ] for now its enough.

Seems that your bike is in good condition, i said to check piston because i assumed that you worked on it, but from your response there is no need i guess. Seems this puzzle is becoming tough to solve . Can you try re-tuning your carb as per the guidelines in XBHP[Universal Threads], and see the if you can find any difference , as other things seems correct from your response this would be first and simple thing to start with. I am no expert just trying my bit of things

Originally Posted by Karthikeyan_M

thks for the replies.
before a week. i tried screwing the carb screw anticlockwise which could give more fuel to the engine so the engine wont scream.
But still the same and also my mileage dropped.

I reached my second service schedule.I got to service my bike this weekend,n also ask them to tune again my carb freshly...

If at all my engine doesn't turns up good, like smooth.can i claim warranty n replace with new engine?