had been to the ASC to enquire about new brake pads and oil , the manager quoted 450 buck for replacing pads and oil.

That apart ,i asked if he could clean the carb , and he replied that the CV type carbs dont need cleaning ! .

How far is this guy honest ?

450 sounds ok (as long as you are getting the brake fluid from a new container with the remaining handed over to you)
CV type carbs dont need cleaning >> definitely not true. another typical reply from an ASC.
But why do you want your carb cleaned ? and if they decide(or you make them decide) to clean the carb make sure they are not just emptying the float bowl kinda cleaning

Somebody has asked for revised gear ratio. I am posting the same here. The speeds are in fifth gear:-
rpm-----------------14T sprocket---------------15 T sprocket
3k----------------------38--------------------------42
4k----------------------52--------------------------57
5k----------------------65--------------------------70
6k----------------------78--------------------------84
I haven't gone beyond this. However i have again come back to 14 teeth front sprocket as i do a fair bit of off roading and thus gone for the original combination.
I think 15T is making the gearing too tall.
The ideal ratio is 14/42. So next time when i will change the sprocket kit i will go for old unicorn kit of 15/42 and replace the front sprocket with extreme 14 teeth. This way i will get 14/42 and this is the best for extreme.
@sarbonoxly- The pick-up improved as the bike got perfect mixture. Neither a rich mixture nor a lean mixture will give more power or more mileage. You were running without o-ring so it was becoming too lean. Did you clean the passage between air screw and slow jet. If you could shift into 5th gear then your mileage will be 50+ in city and 60+ on highway.
Also change the front sprocket to original 14 T and your mileage will improve in city. Its because you will be able to use 4th and fifth gear. Believe me change and see, with this tuning and 14T sprocket you will give all 150 cc bikes a run for their money. Replace 15t with 14T.
@ashwin- If you think it a 100 cc only then you are wrong.
At 60 kph in 4th gear he will be at the power band, but at 60 in 5th gear you are far away from powerband.
Also his bike weighs only 107 kg and yours nearly 145 kg.
Splendor makes maximum torque at 5000 rpm and power at 8000 rpm, so it has a powerband of 3000 rpm.
extreme makes maximum torque at 6500 rpm and power at 8000 rpm, so it has a 2000 rpm.
A well tuned splendor will still run quite well with a 150 cc bikes till the 150 bike enters powerband.
My joy pulls slowly than splendor till 50 kph than splendor, but after 50 kph it pulls strongly till 95 kph and then slows sown to 110 kph.
A splendor will touch 100 kph on speedo, true top speed at 92 kph.
My joy touches 110 kph on speedo, and gps measured at 98 kph.
So think about those bikes as it is a misconception those are bad at performance. If those engines are well maintained and carb tuned properly, they will pull hard.
Although common sense will feel that 150 cc engine will leave the 100 cc in dust but this doesn't happen practically as splendors/passion/joy have some advantage.

when i asked from the spares dept , they said they dont have brake oil in packets or bottles , instead the service guys will measure it from a can and add it .

So i guess the brake oil is not from a new container .


FE has gone down significantly getting around 33-35kmpl,in the city. I have changed air filter , will be changing the spark plug in a couple of days . i keep the tires inflated properly and i use good quality fuel from a trusted HP pump.

So i am guessing the carb needs a cleaning.

In that case you can get a bottle of brake fluid yourself and ask them to just replace the fluid(labor only). But again brake pads and fluid replacement can be done outside by most mechs and its hardly a 20min job..
Since you have replaced the air filter and will be replacing the plugs as well... when did u last change engine oil ?(how many months/kms ago?) if its more than 4months/2500km i suggest you change it & also get the clutch adjusted correctly.
And good luck with convincing them to clean the carb.. or maybe find a good local mech who can do it for you.

sprocketing dileama

There has been a lot of debate on sprocketing, and after a lot of permutations and combinations i have come to the conclusion:-
Sprocketing is not about BHP but about torque.
Gear ratios multiply the torque at rear wheel.Suppose a engine produces 10 Nm of torque @certain rpm and 12 bhp of power @certain rpm.
So irrespective of gear your bike will put 12 bhp at that rpm. But in case of torque it is different as torque gets multiplied. Suppose the gear ratio is 3:1 then the torque available is 30 Nm. similar for other gear ratio.
So coming to sprocketing.
You cannot go for karizma rear sprocket because karizma is a torque monster. If it would have 43 rear teeth then it would have lifted the front wheel in first gear even at idle.
But the problem is that present ratio demands the need for 6th gear in extreme/hunks. And we also know we can get another 5-6 kph more top speed. But the problem is unicorn front sprocket makes the extreme devoid of its characteristics pull.While it helps in increasing speed but it makes the extreme feel like unicorn.
So what to do.
I got an idea from my joy. My JOY has a final drive of 14/42 sprocket. So i decided to experiment.
From my mechanic i got an old unicorn rear sprocket of 42 teeth and fit it. The results were quite good as it didn't alter the gear ratios much and it felt smooth and engine felt relaxed.
But the problem is that only rear sprocket is not available.
So i got an idea.
Those of who, chains require replacement can go for old unicorn set. It will come in 15/42 configuration.
Go to hero service and buy an extreme front sprocket for Rs.100. Fit the unicorn sprocket kit and front sprocket of extreme. Gift the front sprocket of unicorn to a friend who owns unicorn and he will be happy.

My cbz xtreme silver color version 2011

HELLO ALL BEFORE I WRITE MY REVIEW I WUD LIKE U ALL TO KNOW ABOUT MY SELECTION PROCESS.

My father owned a Hero Honda DAWN in the year 2002,which had done about 20000 odd kms before last yr when he sold it off as i had told him that i want to buy a new bike. I used to commute to school and tutions daily on my bike DAWN for 3 yrs piling up 10000 kms on it without any changes except once when the clutch plate of it had to be changed..

Then 1 fine day last yr i told my dad that i have used this bike a lot and also i need to buy a new my bike preferable in the 150 cc segment.

Then it was the process of finding which is the best bikes in the 150cc segment..

The considerations were
Hero Honda hunk(the new digital console)
Honda unicorn
Pulsar 150
Hero Honda cbz extreme(just came to know from dad the new 1 with digital console has launched)



But then my father said
Hero Honda le lo...
maintenance kam hoga aur engine bhi sahi rahega aur thoda speed mein chalane mein stability bhi milegi...

Then took the call for "CBZ XTREME".
Then the color choice...
as i has dawn in black color so didn't wanted black color,
red was very non appealing to the eyes,
Then came the silver colour...
after seeing the silver color in the showroom,decided to go with it.....


INITIAL RIDE

Was in love when i got the delivery on 27-07-2011
filled the petrol in the tank with 500 rs...
Was happy to ride it back to home.
Though it was a bit uncomfortable at first when i drove it from showroom till house as i have been on the transition from 100cc dawn to 150cc cbz...

The ride quality was awesome..
The engine noise was very less,though did not drive beyond 50kmph for the first 500kms,then went till 80kmph after the first service...

After the engine oil change in the first service the engine was butter smooth and gear shifting was awesome...

Till now i have completed around 10500 kms in 1 yr and 3 months of ownership....
Problems faced-
1-Loose tappet-got it rectified by the SVC.
2-Tightening of the chain- got it loosed and oil in the 5th service....

Engine oil used so far
1-HH 10w30 stock oil
2-Mak 4t 20w40
3-servo 20w40
4-Castrol Power1 10w30(semi synth)
5-Castrol Power1 10w30(semi synth)

Now the engine is quite smooth and very free revving and giving me a avg of 45+ constantly.... without much fuss...

loose tappets is the common problem in HUNK/CBZ ,I got a new bike it has a tappet noise , don't go for 20w40 oils . Nice review Mate

After it, the sprocket ratio will be 14:42 (3.000) instead of the present 14:43 (3.071). This is what Suzuki did on their new bike by changing the rear sprocket to 42 teeth instead of 41. The difference is slight, not noticeable at all.
Actually the torque has no roll in slacking of the chain. A well maintained, lubed an aligned chain lasts long.
If the modification is not for speed, I think, keeping the present gear ratio of 14: 43 and aligning the sprockets and chain and lubing properly is enough.

Cleaning and lubing the chain extends the life a lot.
In my JOY i always use DIAMOND chain sprockets and present chain sprocket is at 87000 km and still going strong. Wait for me to post photo in splendor thread.
Its not about speed but in extreme the bike always feels the need for sixth gear. So a ratio of 14/42 will negotiate the effect. Extreme easily red lines in 5th gear as 4th gear in other bikes.So a 14/42 will solve it.
While a 14/43 to 14/42 may not feel much but in my joy it is 14/42 and splendor 14/43. Trust me it feels a lot different. While my joy feels relaxed at 70-80 being a 100 cc but splendor feels strained.

First of all, let me say that it is not for any arguments or debates. The reactions or comments on my post about carburetor tuning itself taught me that lesson.
The difference in torque applied on the rear wheel by a 14/42 sprocket set than the 14/43 is just ignorable but may be enough to make the ride comfortable if you have felt it.
If we fit Hunk’s or GS’s chain on Hayabusa or any higher cc bike for experiment, it does not elongate but breaks.
Modifying sprocket ratios is for speed, FE or acceleration; not for chain and sprocket lasting. If the chain goes through a jar or container of oil while riding, it will last for more than a lakh kms.

first time i crossed 80kph on my new HUNK ,after 6000rpm it pulls like hell

Which post you are referring to?

Changed the engine oil a couple of months ago, and i ve hardly done 1.5k on it . Currently i am using shell semi synthetic 10w40 .

I change oil every 3k kms . Could not convince them to clean the carb since they argued that opening the carb will only ruin it further. i was like .

Even my regular local mech does not want to mess with the carb .