Hello Guys... I have been experiencing a very strange thing in my Hunk... When ever I ride my bike above 4k rpm a strange continuous slight tiking sounds starts from beneath the tank... Problem is it does not appear when I stop the bike and open the throttle... Only during motion... and it does not appear always but occasionally...

Can you guys help me know whats actually going on and whats the cure... Guys at HH too are unable to help me since last 3 services... Sometimes feels should I pity them or myself

@sarbanoxley: This sounds like a case of bent valves. Don't worry, this is somewhat common with a few batches of Xtremes-my friend has also experienced the same problem&his bike stalled one fine day. This is the same friend for whom you purchased and sent the speedo hub!
He also had a gase of leaking gasket (in turn engine oil) due to the inner screw's threading giving way. Both the times the engine head was opened up&the problems were rectified FOC under warranty by HH SVC&now his bike runs like brand new. No side effects whatsoever.
Go to HH, they are well trained to identify these problems&will do a good job. Try to get it done under warranty, state some reason for not availing the last free service-the paid services are not mandatory for warranty claim. There is also a goodwill warranty, that is if the period is slightly more than 2 years since purchase of the vehicle.
In the worst case, i.e., they do not accept warranty claim, still I say pay for it&get it done, it will not cost you more than Rs.1500&peace of mind will be guaranteed after that. You can go back to them anytime if you feel they have not done a perfect job. But I doubt if you would need to do that.

+1
Get it checked under your surveillence.

If the bike is idling smooth and normal, valve and valve train is OK. if the valves are bent, leaking or deviating, then the first thing will be impossible normal idling. Any problem with valve would affect the idling first and top end in the last. And it seems almost impossible to run a bike at 5-6k rpm at 70+ kmph with bent valve while idling remain unaffected. How is the idling?

Most probably, it is an issue of carbon built up in the head, wrong timing due to slipping timing chain or screwed CDI. I have read here and some more, about heavy carbon built up in Unicorn piston/head chamber.

http://www.xbhp.com/talkies/motorcyc...nicorn-97.html

I understand the pain bro, but why I'm telling to take it to a proper HH SC is that they are trained and they service tens of Xtreme's a day. So I would suggest enquire about best HHSC even at nearby places and give your baby to them.

If Idling is normal, then the pressure is not leaking even at low rpms. So, valve leakage is a dim possibility.

A mechanic can easily tell the timing chain noise just by hearing it and differentiate it easily. He can also diagnose tappet noise easily and set it right. For both of it, he need not open the head.

Now, for rattling sound from the head, it can be one of the following:

(i) valve hitting piston (which can be checked only after opening the head). But more important would be the cause which let it happen in the first place like bad camshaft or timing chain or chain tensioer;
(ii) Valve hitting the seat violently (maybe , one of the camshaft lobe has given way and camshaft need replacement);
(iii) CDI malfunctioning and firing much earlier creating cumbustion rattle where the expanding gases work on piston against its normal motion;

Only a good mechanic can check. Do tell us what was the real cause ?

guys need ur help again
i want to know wht r the things that need to be done during the first service of cbz xtreme like engine oil change,air filter cleaning etc.....i want to know complete list of things to be done.coz in bd SC people do nothing except for cleaning the bike & engine oil change. if u people tell me what r the things to be done that i can make them do it............thnx..............

Wow that's some detailed reply.I dont understand all the thing's you said but i do understand the engine need's to be opened for the above mentioned fault's.

I think i will go with the superbike wala as the problem sound's really complicated.Will keep u posted .

Have you opened the engine? What was the outcome?

I came down with fever...spoiled all my plan's.Will get it done as soon as possible.

hi guys!!!!
I was curious to know what mileage can be extracted if gears are shifted @5kRPM??. and what speed do u guys attain @5k RPM in 5thgear,
ques to delhi members- which is the best delhi HH svc in delhi, preferably south delhi

So guys after a long One & half year i'm gonna complete 10k!(9985 currently)
Will be going for the last free service pretty soon..
Please suggest me what all things i need to take care of.

I came down with fever...spoiled all my plan's.Will get it done as soon as possible.