its Nissin

tried but there seems no change in the sound.
and the power pulses in RPM range 3k-4k remain there

Check your tappet clearances. These should be 0.06 mm for inlet and 0.08 mm for outlet. The tappet adjustment takes some exactitude as the setting has a tendency to be disturbed during tightening of the lock nut. So ensure someone with experience does the work.

Coming to your power pulses; I am assuming that you are using a stock ECU. The stock ECU seems to lean out in this range. If that is so then expect this problem to occur for the next couple of thousand kilometers. It should disappear as the carbon builds up on the piston crown.

You could also try an ECU reset, just remove/unplug the ECU for at least 10 minutes, then plug it in again. Worth a try and it's free of charge.

Thanks! will try to find a good mech to check the tappets. i was also thinking about same problem.
yes i am using stock ECU now considering to adjust its AFR using the FYI tool.
i am running on the big bore and ffe. no head work is done. i thought the ECU runs lean at higher RPM in this range... but it seems to run fine at higher RPM.
thanks for ur input!

ok. so should i warm the engine then turn the ignition switch off, remove ecu and after some time again install it and start it right?

Guys when i rev up my engine a sound of vibration is heard from near the console . Any idea what's vibrating??

FYI tool? For Your Information, its FID- Fuel Injection Diagonstic Tool

may be the visor, check the screws.



RIDE SAFE

sorry mate i read it somewhere.
@ sak919: check the black panel below the windshield and above the speedo console. its rubber paddind gets eroded and starts to make noise.

Just for my Knowledge

Hello !!

I have one question ..

I read somewhere in this xbhp website saying " If we change our bike engine oil @ regular intervals of 250 kms till 3000 kms Increases our bike Engine Life " --> is it true ??

My question is -- > If we keep changing the engine oil @ regular intervals of 250 kms , " No Sludge would be formed and the oil remains new , and what is the use of changing the oil ?? Am i Right ?

Please " Correct me if I'm wrong " .. I hope you guys would understand what i'm trying to ask and why i'm posting My question here because i can't find that particular thread on this website ..

Thank you

Regards -

Arrive Alone

Adjusting the AFR is not going to make much of a difference if any at all.

My advice, you will simply be wasting money and oil if you change oil every 250 kms for the next 3,000 kms. Bike manufactures and oil blending companies don't recommend a drain period just because its a whim or fancy. A drain period is recommended taking into consideration all pros and cons including sludge built up period.

Yes, I do change oil every 2,000 kms or 6 months, whichever is earlier, regardless of what the color of the oil is.

Hello

My Bike completed 11k Kilometers on ODO !! I need 1 help from you guys !!

Can i use fully synthetic Engine oil ??

Can any one display the Name , OIL Type & its price !!

I need the Best quality Engine oil only !! Price doesn't matter !!

Note - I don't have knowledge about the engine oil as well as the other parts inside the bike , so i request you to mention in detail

If i face any Fault in my bike !! Please help me !!

Additional Informational - I just know to ride and maintain the bike with care !! If i have any furthur Doubts about my bike or any faults , i hope i can post here and you guys would help me regarding the doubts/faults

Thank you

Thank you for your response !!

Why i'm asking because i will be getting R15 v 2.0 soon , that's why !!

My Bike Mileage

My R15 v 1.0 delivers me around 40 - 42 km/liter when it is driven @ 60 km/hr or below and 38 - 39.5 km/liter when it is driven above 60 km/hr - 75 km/hr and 35 km/liter is constant if it is maintained above 75 km/hr on City !! But , if i keep rev. the bike means i'm getting a mileage of 30 km/liter only !! [ This is on City Rides ]

90-120 KMPH---------------> 45-47 KMPL --> On Highways !! I used to do Minimum 90 km/hr and maximum speed i have done is 120 km/hr with my mom as the pillion [ I always used to travel with my mom ] , and I'm getting Minimum 45 km/liter , and frequently i'm getting a Maximum mileage of 47 km/liter !! [ Hope it makes you to understand ]

This is my Mileage calculation with full tank petrol till reserve !!
I repeated this experiment refilling petrol to full tank for " 4-5 " times !!

Note - " The real fact is My Bike Mileage varies as My Speeds varies , and i don't know why !! "

I don't know , about the mileage of other R15 Owners !!

You will be wasting money!

When Yamaha and other reputed companies give figures and advices, you should remember they give it you based on their R&D; not some info that they had a dream about, that can get them sued if overly exaggerated. You can accept them with a pinch of salt, not a packet of salt. They say 3 months or 3k kms, whichever comes first; 3k kms is quite acceptable as the engine worked to cover that distance; but 3 months is vague if the bike wasnt used much. besides there are many parameters, and you can get an idea of them if you take the trouble of reading through the various discussions on engine oil here, or the engine oil bible.

Additionally, when you are in the free service periods, it maybe smart to use the cheaper mineral oil yamalube 20w40. Thats what i did, because after the 2nd or 3rd service, i was not even getting close to clocking 3k kms in b/w services. I was always clocking around 1.2-2k kms when the prescribed date comes compelling me to service.

Furthermore, after the first 2 paid services, i decided that i would be better of not going to the service center to have it done. Thats when i transitioned to the more expensive synthetic oil yamalube 15W50, as i was not compelled to service on a prescribed schedule. FYI: I had bought the bike from Naman Auto, Panvel, as that was only centre for yamaha in the whole navi mumbai then. Naman Auto Panvel has the world's shittiest ambiance {e.g-adjacent shop is a dance bar}, with the most uneducated , uncultured, and rude employees/ mechanics, who cant focus on their tasks with out going around eachother shouting the most abusive gaallis and 3rd class repulsive humor wasting 40% of the day. I guess the owners preffered such employees, as they could get away by paying low salaries; leading to unhappy employees and further deterioration in customer service. Anyways I had spotted two mechanics {swapnil and suresh} who were none of the above, but were decent and focussed on their tasks, so for every service I was hell bent for either of them to do it and no one else. I noted that for all their dedication they ended up being sacked, like a few others before and after them; because they refused to tamper with "unsuspecting" customers' bikes and increase billing.