Introduction

Friends I'm new here . . . I used to read your posts

welcome mate. please post an introduction here CLICK HERE

I'd like to get the sprocketing done then. Cost effective way too! Any mileage increase noticeable?

Yes, I was getting noise after the engine was hot. It's been fixed now. Ask them to adjust your tappets.
Carb and FI, there is no performance difference. Just that you don't need to worry about carb tuning at all. The FI automatically adjusts the RPM to suit the needs. If the engine is cold, the FI will turn the engine at a higher RPM and once it warms up, it automatically brings down the RPM. Self adjusting basically. No need for altering the carb at high altitudes or the choke in the morning.

Sprocketing, well, the stock is good. But Sibun's setup is better. Even for in-city commuting. I am actually considering having different setups for different purposes. I'm considering the Unicorn front and Hunk rear for City use and Unicorn front and Karizma rear for those highway rides. The Taller gearing will make cruising at 70-80 easier and you don't really need all that much acceleration.

Oh then i need to ask them to adjust tappets . i am not much aware of sprockets modding so you know it better(is it fine if sprockets being changed frequently depending upon the nature of ride?). Yeah FI would be better in this case instead of this Carb.

wht should be the RPM inorder to get the good milage???
(CBZ Xtreme)

IF your questiuon is about riding the bike in what rpm ? then it must be within 4500rpm apart from that carb must have little lean mixture than normal

Would like some figures for 'mileage' RPM::Speed ranges for the front unicorn sprocket in Hunk/Xtreme.

Inputs @Sibun @Ashwin and @sarbanoxley?

I don't know the sprocketing math yet. But from what I could find. The math goes like this:

(((new ratio)/(old ratio))-1)*100

This gives the percentage change, positive meaning shorter gearing, negative means longer gearing.

For the new setup it will be: ((2.86/3.07)-1)*100 = -6.84%

That would mean what you do at 5000RPM now will be done at 6.84% lesser RPM after sprocketing.

So we reach 50kmph at 4000RPM in 5th gear. 6.84% of 4000 = 274RPM

So we can now do 50kmph in 5th gear at 3726RPM

Top speed is reached at 8500RPM, 6.84% of 8500 = 581RPM

So you will reach your erstwhile top speed at 8500-581 = 7919RPM

This is what I learnt today. It's theoretically supposed to increase top speed as well in a tradeoff with acceleration. Hope it does!

And mileage RPM well, stay within 4-5K RPM and it should be fine.

hey nice all this, from where did you that all theory?let me know and Ashwin can you give me details of HUNK ,Uni, karizma sprockets ??

why do you think there is no difference between a carb and FI?

If there was no difference between those two , why do you think automobile manufacturers switched over to FI ?

what he wanted to mean may be both will do the same duty and FI is intelligent . so you are better off.

But the fact is FI will cost another Rs.10k more as there is a fuel pump and the circuits for the program to run

Guys.. I ve a couple of queries. Need your help, urgently.
1. I removed the air filter box cover ( for the fun of loud exhaust note ). Tuned the carb accordingly. Its awesome. Nice acceleration, sound and FE. My doubt is, will the absence of filter cover reduce the filtering efficiency..? Heard paper filters wont work well if placed open to the atmosphere.

2. ANL brake pads (non - asbestos) Rs. 120 while KBX ( not sure if its asbestos ) Rs. 340.
Why such a huge difference..? Which one should I go for..?

Looking forward to all the seniors..

I really cant tell if the sprocketing had any effect on my mileage as i got the carb also tuned at SC just a day before i installed the sprocket myself....but it took me some time to get used to the new set up i didnt like it at all first ...give it sometime say 1000kms at least then you will love it esp. on the highway.

I got 49.1km/lt with the uni. sprocket keeping the RPM above 5500 but below 6500 most of the time in my trip...at 6500 i was cruising at 80 km/hr. Today after doing the sibun carb tune myself i am getting 44.75 km/lt inside kanchipuram town where most of the time its tough to go beyond the third gear...very rarely i got to use 4th gear and even more rarely the fifth...so i think its ok but dont know...after tuning the bike is running a little bit cooler and the pick up has increased a lot...again dont know how that is but i can certainly feel the pull and the bike just surges ahead fast....yesterday i raced with a splendor from 60km/hr both of us twisted the throttle at the same time and i pulled away so easily...i like this tuning i did followinf sibun more than what the head mech did .

1) Put that cover back on immediately .

2) ANL pad is what you should go for the rear ...i have the same and why the hell is KBX costing that much ?

Due to stricter emission norms and marginal bump in mileage. No real difference in performance.

Yes, FI is self adjusting. But way more expensive! :P

Well, you're essentially leaving it open to more dust. I would think there would be an exponential decrease in filtering efficiency every time you take out the bike.

Dude, his bike is a 100cc bike while yours is a 150cc bike! :P Moreover from 60kmph, he doesn't have much juice left. :P

Great to see the sprocketing is doing a good job. Want to get it installed it ASAP but just being patient.

1. The amount of dust that will come in contact with filter will increase ,hence you have to clean the filter more frequently i.e every 200 km.or so (just to enjoy the suction note) and change your filter every may be 5k .

2. Cost is directly proportional to life . KBX,NISSIN? goes as OE for Honda I have purchased one(nissin) and kept in reserve.ANL life is less, this is what the dealer said .But my stock front pad is ANL and I am using for Last 20k + and only half thickness gone.