re: CBZ xtreme / Hunk

Exactly how low can FE go? Because I have a good feeling my bad FE is directly related to my loose chain.

For eg. In [MENTION=28527]sibun[/MENTION]'s bike, at 5K RPM with the 15T, it does 70kmph, my bike does 67kmph. My chain is pretty loose. Could that be a reason for the lower speed?

re: CBZ xtreme / Hunk

Speed rpm mismatch is questionable , but yes acceleration is badly hit , mine was loose and pickup , top end was low
I lost 3-4kmpl due to loose chain

re: CBZ xtreme / Hunk

Mineral oil upto 10,000 kms, thats what company recommend. SS oil can be use after 6000 kms but its a oneself decision and i don't personally recommend. Its upto you. But both oils are best that is guaranteed. Super swift performs even better than Shell AX7.
rest BloggingWheels have already answered your query.
Go for Veedol Take off 4T Plus 10w30 !!

----consecutive posts auto-merged-----

Yes power get loss with loose chain but your has clocked only 3k and not yet free. Whereas, Sibun's bike has clocked 11k and his engine is free and also tuning (AFR) is perfect. And your bad FE can be a rich mixture and rich mixture reduces top-end also.

Note: Also two bikes from same model doesn't perform same. Read this..http://www.xbhp.com/talkies/motorcyc...tml#post957174

re: CBZ xtreme / Hunk

For the time being please stick to 10W30 only. Sibun will let you know about xyW40 oil grade later.
(That means not even Super Swift for the time-being)

re: CBZ xtreme / Hunk

These ASC people ALWAYS overtighten it. I know not why. There's always a rubbing sound whenever they tighten the chain.

Take Off it is then. Mine is the Big Bore from Joel, bike has otherwise clocked 20k km. I tuned the carb again the other day, I'm hoping it turns out right. Is a little wavering in the idle RPM acceptable? To the range of 100-200 RPM?

So Veedol Take Off should be fine for now then.

Also, which fork oil can we use? I remember Sibun saying 20 grade. So, can I use this?
http://www.motul.com/in/en/products/89?f[range]=21

Thanks a lot for your help guys!

re: CBZ xtreme / Hunk

Hi Guys,
Today, I purchased Iftex Clean Sysyem G as suggested by Sibun for my xtreme. It costed me 280/-
As per instructions, 1 ml per liter of petrol is enough. Below are the images for the same.

re: CBZ xtreme / Hunk

^ ^ OT: On a funny note, this bottle looks like a mouth wash bottle!!
[MENTION=28527]sibun[/MENTION] and to those who are using this -

1. Should it be used regularly as a fuel additive?
2. Long term benefits/possible damage to the engine?

Rest any inputs on the same?

re: CBZ xtreme / Hunk

If it is not available go to Honda showroom and buy Honda unicorn rubber gasket for head cover. And always use a gasket sealant as sometimes head cover might again leak and cause a mess, for gasket sealant use resibond clear 330. It is a clear adhesive and will not look odd, also it is like rubber once dry and when you open next time it will get removed easily from surface.

It, is not fully synthetic oil as marketed as how could a fully synthetic oil be so cheap. The cheapest fully synthetic oil in 10W 30 grade is Honda throttle.
It is better to use Gulf 10W 30 pentatec or Veedol Take-off 10W 30 premium both are semi synthetic.

Use Veedol 10W 30 premium, one of the best oil in the market presently available.
Yes, chain slack affect the performance of bike as loose chain will load both the sprockets by sagging and will cause power loss and less speed at particular RPM. An overtight chain will load both the sprockets by pulling them and will cause the bike to feel harder to rev and too much of vibration.

Man are you crazy, Hero is the world largest producer of two wheelers. Hero makes 2 bikes every 3 minutes. How do you think they will provide the same quality as shown in NAT GEO. Those are luxury cars and produced by orders. Each car takes 3-8 months to built as depending on company and model. As you said engine is hand-built by single engineer and signed. You will be surprised to know that when engine is sent to re-built to dealer then the engine will go to same builder to be re-built.

But in case of hero which makes so much bikes it is not possible. Take for example if engine is built. The engine will be moving of the assembly lines and each part will be fitted, some one places the crank, another gear box, another attaches the crank, another fits the piston, another slides the bore, this way the assembly line moves and work continues. So no body pays special attention to the work as in those bikes.
Also in those workshop the workers are engineers or artisans but here they are mostly fitters. Also all are fitted with pneumatic wrench but in those workshop everything is hand tightened with digital torque wrench.

And do not compare with them as will you buy if the extreme cost Rs.1 lac, so everything has a price. Even without those Hero is best in quality.


All extreme/hunk owners please use 10W 30 and not 20W 40 or 10W 40. Why i will explain below:-

When we are buying an oil we always neglect the higher rating of oil, but from my practical experience, it is required. Why?
Let us study the spec sheet of 10W 30 and 10W 40 oil:=

10W 30 oil has a kinetic viscosity of 11.2 cst at 100 degrees.
10W 40 oil has a kinetic viscosity of 16 cst at 100 degrees.
20W 40 oil has a kinetic viscosity of 16 cst at 100 degrees.
Kinetic viscosity is the resistive of oil to flow. It is measured by taking the oil in capillary tube and heated and measuring the time to flow. Its unit is centistoke.

Do not think that the 100 degrees is not important as it is the oil temperature and in engine the oil gets heated upto 120 degrees easily.

Oil doesn't only lubricates but also cools. By circulating through out the engine it carries the heat with it and away from hotter parts like piston,timing chain,valves, rockers.

So more quickly the oil circulates the more cooler the engine runs.Also it revs quicker, i have personally felt engine to be lazy to rev when heated up in 10W 40. Also in 10W 40 i felt the engine to be heating more when ripped on highways at 80-90 for 50-60 kms. When i took a break hot air was hitting my legs. No such problem in 10W 30 oil.
So what is the difference that Hero recommended 10W 30 oil. First of all extreme rings are very tight and harder than unicorn. The reason why extreme feels viby and tighter than unicorn when new. Also the oil pump pumps more oil per minute so the oil will return quickly. Also extreme produce more power and revs quicker than unicorn, so 10W 30 reduces engine drag and frees up the engine.

Actually 10W 30 oil is good but the Hero oil had made a impression that 10W 30 is bad. You can try Veedol 10W 30, Gulf, motul, shell, almost all brands have 10W 30 oil in their portfolio.

[MENTION=20817]nish[/MENTION]es kumar- Good to go use and tell the effects. I bet once you use it you will use for ever.


@blogging- Yes you can use it regularly. Also it has no side effects, been using it on my joy for more than 2 lacs km.

re: CBZ xtreme / Hunk

re: CBZ xtreme / Hunk

Hi Guys,
Today, I was searching for Service manual of CBZ Xtreme on internet, but couldn't find the same and instead of that I found full version of HONDA CBF 150 UNICORN SERVICE MANUAL. It's a 436-page manual of 178 MB in PDF format. I have uploaded the same on "sendspace.com" and below is the download link for the same. Hope it helps........

Download HONDA CBF 150 UNICORN SERVICE MANUAL.pdf from Sendspace.com - send big files the easy way

re: CBZ xtreme / Hunk

Thank you nithesh, was looking for the same.

re: CBZ xtreme / Hunk

[MENTION=29030]Pinaki[/MENTION]- you are right but you are talking regarding splendor, and what you told is true when i consider my Joy as i have experimented like you on my Joy. But all those knowledge was thrown out of window when you consider the extreme.

Instead extreme fel strained and heat up more when using thicker oil. The basic difference is that splendor oil pump run from timing which is approximately half of engine speed. But the extreme oil pump run directly from crank, as a result it pumps more oil than splendor engine. On splendor mileage difference is not much when using 20W 40 or 10W 30, but in extreme, my extreme returns 55-58 kpl in city when i used 20W 40 the mileage became 40-42 and bike felt like unicorn, engine lost the punch that it is so famous for.

Regarding compression then the original bore in splendor comes with less harder compression. Just use USHA bore kit and see what is compression. Moreover slendor engine is designed to run on 20W 40 but extreme is designed to run on 10W 30.

All the general knowledge of oil gets thrown out of window when you see this.

help me to maintain a new bike

hi,
i am going to buy a new hero xtreme in few days. i haven't owned my own bike till now. Also i have used my dad's old splendor but i am not good at maintaining a bike. but even i maintain those bike they are of no use. Now, owning a new bike i want to maintain it good from the beginning.

please help me with what to do to make it good.
1. DOs and DONTs
2. Daily maintenance.
3. Oil details - make and maintenance.
4. how to do a long riding, and also city riding.

I need to know all the above and more of your experience too. Please help me. I have joined xbhp particularly for gathering biking knowledge.

Thank you all.

re: CBZ xtreme / Hunk

Is this oil pump speed same for unicorn also? Since it has the same engine.

re: CBZ xtreme / Hunk

i am using Shell Advance AX7 10w-40 for the last 8000 kms

is this good

or i should go back to 10w-30 ??