ok today went to mechanic and got major stuff rectified feeling good now as many minor stuff were solved and happy to get my bike back to life and about the brakes they said its perfect so no need to worry some adjustments and now all in order.

Hi Ramborider . . .you lost me somewhere in the middle ...!!
I'm not sure about the height difference ( from gudgeon pin to top of piston) of both the pistons . Mechs don't give out what they think are 'unnecessary' details unless asked specifically . I've asked him about it and he assured me everything will be OK . I want to be there when anything is being put together . But this being the financial year end , it's hard to get away from the office - add to it the fact that he is some 23-24 km away . But this being his first real mod on a ZMA , he's keeping every records - details of changes and materials used . I'll be getting the same data .
Piston pin bore can be adjusted - can be made larger or smaller . I don't think that will be a worry .
I'm not sure what you mean by skirt calculation . Please clarify . Also please check the piston speed you've given . I arrived at a different figure . But then I could be wrong .
The confusion about the piston dia continues and I'm left without a bike for the 2nd day without any progress .!!!

Can anybody suggest whats the price of a Karizma in second-hand market? Dec 2006 model, Red color, very well maintained and in very good condition. It will not get any repairs in the near future. The odo is 49,000 kms. Engine is black painted and engine cowl is retrofitted. Battery MF 9amp Bosch. Rear tyre 120 Sirac. Front tyre needs replacement soon. Just changed cam tensioner and general service also done.

I need suggestions as to how much money it will fetch.

The bikes looks like this.

I wouldn't mind shelling out 50k for this beauty. Maybe a little more . Not a calculated price it is just what i felt. Resale value changes with location.

All the very best for the work . We all are eagerly waiting. Do keep us updated. The doubt I have here is when changing to 220 piston the compression ratio will be increased right? . Will the bike reatain the same refinement like before?.

Guys seems like Kerala police is taking things to the next level. Karizma R taken into the force to do high speed chases.


NGK G power review
I have changed to G power couple of days back. Contrary to bump in economy I got mine reduced to 35 kmpl from 40 kmpl . The thing is that I am finding it hard to keep the tacho below 5k. The bike is smooth and purrs like a kitten. You won't even feel like the bike is being revved like that . Doing 90- 110 on empty roads is nowadays quite usual for me. Well on riding between 50- 75 range the bike gives out 42 kmpl. Will check again and revert back. Cold starts are better and once the engine comes to life it won't go off and no need of choke during cold starts. Bought it for 135 rs. And the plug was made in japan .

Shell AX5 engine oil review.

Nothing much to say here as I have only used 3 brands of oil till now . This is the best mineral oil that I have come across so far. Gear shifts are smoother from the beginning itself and requires less warm up time than gulf 20w 40. Did a ride to kanyakumari cruising at 60-80 kmph and the engine was way cooler than my friends 220 . Well on the vibration reduction part doesn't do it as good as gulf 20w 40. But still does the job better than HH 10w 30. On the gear shift side Shell scores above HH oil and gulf 20w 40 ( scores above HH 10w 30 in the long run). And warm up time is lesser than gulf 20w 40. Oil costs 248 rs. If you spend 50 to 80 rs more you could upgrade to semi synthetic oil from shell or mobil . So price seems a bit high. Using this oil for past 1k kms.

^ My new plan of action is to befriend one of these zma riding cops, present him with a bottle of daru and swap my zma's worn carb with his bike!

50k? I gave this bike to my friend for 48k two years back.

Yes, even if he was faulty (he was in my lane overtaking some biker before a blind turn and kept coming in towards my left and then tried to sway back in his lane) but I will curse myself only for not responding quick, don't know what has happened to me....(I used to judge every such moron on road real quick, I was so used to the Calcutta traffic and ppl walking and jumping on the road in front), the thought that the bike has not been serviced since last 5k+ kms bugs me everytime I ride it, but helpless, not getting a day free from college. I'm worried about the bike not performing well, and a poor FE as well compared to earlier.

Thanks for the pointer to the G-power plug. Regarding Champion, I am already using it and so much difference in performance between the regular plug that comes in stock Karizma and the Champion one. I really need G-power now, after hearing good reviews from fellow and senior bikers here. But again, gotta have a day free to go there.

Yes, I'm okay, the bike suffered.
And, can you please name that app? Is it for Symbian or Java?
And does it require an internet connection(high speed) to tell the speed and other info?
Mine app stays at zero even when I'm moving at good speeds, it just simply won't work.

You are really pissed off buying a used bike. But hope, the condition is getting better now. Lets move to the shop Pinaki ji mentioned for the G-power, someday.

Buy it back and sell it to this guy now, you'll be having a profit of 2k or more.

Now I understand why our police is so inactive. When govt. is doing good for police, some ppl like you don't want them go right.

By the way, it felt good to see this bike being used as highway patrol bike. It made me even happier than when I saw Delhi Police using white RTRs and Pulsars.

dont lostup sirji just lightup
try to calculate height diffrence of both,since higher comp height could lead to touch piston and valve,it reduces swept volume increases compression ratio(increasing comp ratio indirectly reducing volumetric efficiency),if mech dont had worked on such mod previously please try to involve,in end time there should be gain in perfomance.
piston skirt is what like bearing area so each piston skirt length is design on basis of engine speed rated,mean effective pressure of gases.since you are using p220 short stroke piston on long stroke of zma there is definatly diffrence in design data.
what is your future aspect about this altration like are want to run only for drag or fun,want to run on daily basis?this also important thing to take account

Its S^3 app.

Hi,

my one month old ZMA-R engine stalled two times. its first service is done.after that i am getting this problem with this machine.
one day i was riding at first gear and other day at top gear . after the engine stops it doesnt start up immediately ; only it start after 10 min.

first time stalled .. when it was in 1st gear ..RPM was between 1.5 to 2.5K .. it was crowded lane..... 2nd time in top gear i was riding at 60-70 KMPH.....

can anyone share me a clue about this problem.. did it happen to anyone in this forum with ZMA-R 2011 model..

Probabilities.
1. Loose CDI Contacts. - Issue should be solved after cleaning and reconnecting contacts.
2. Sticky Valves - After the bike stalls and the kicker has no compression, then that means the valves are stuck, just wait for a few mins and try again. Nothing much you can do, its a common issue with ZMA's.
3. Wrong Carb Tuning. - Retune the carb and set it to optimum. And see if the problem vanishes.
4. Overtight Intake Valve. - Ask if the SVC mech messed with the valve clearance settings, if yes, reset them.
5. Just the CDI acting up. - This is also a common issue, just reset the ignition when this happens again and see if the issue is still there.
6. Clogged Air Filter - Check if the Air Filter is clean.
7. SparkPlug Ruined - Check the sparkplug, sometimes SVC mechs try to clean it and destroy it.
8. Check if the tap on the BIG tube hanging below the bike is still in place.

Guess I've covered the basics. I've got many more stranger theories, will tell em if the above ones dont solve your issue.

In the normal case , yes , there will be a rise in the compression ratio . But that will be taken care of .

Without crash bars where will they fit the Police lights and siren ??
In the 'about' section , it reads
Speedometer
Version 3.0.0
[email protected]
(c) 2011 Kilut Oy
www.kilut.fi
edit- u can get it at the site add just above this line .
Not sure whether I got it from mobile9 or Ovi store though .
Once you start the app , it has to get a connection from GPS satellites and only then should you expect it to give a reading . This one has a feature where you can sent a log to an email id which when opened shows the route you have taken for that session . For that trip I got this...


The pink line is the route.

I guess it requires internet , but not hi-speed . I've got GPRS in my mob .
Issues like compression ratio and height of piston are taken into account . And I said it is his first big mod on ZMA . He's done umpteen number of mods on other bikes and preps bikes for races and motocross .

No drags...just normal rides and occasional tours - relaxed hi-speed rides .

If it can be done with minimum trouble and minimum cost , why shouldn't it be done ??

chain cover feel off

today lower chain guard fell off while riding it was having cracks near the bolt....now it has gone out of shape and torn
had gone to svc and found that it is not available n priced around 750rs....riding bike with naked chain now they said it will take 2-3 more days
engine oil changed to gulf pride 20w40(230rs) loving the smoothness of engine and less vibrations
brought amway car polish,iridium spark plug and motul chain lube...tomorrow m spending time with kari to give her new upgrades

re

for lower half chain guard it is 750rs black colour...dont have any idea about upper half chain guard...pre 2011 models have silver chain guard(upper) where as 2011 comes with both black colored ... now it is upto availability

If you're interested in opting for a half chainguard then go for the Enticer one, am using it. Costs 50Rs.