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**Only Amit...** · 07-18-2011, 07:02 PM

Originally posted by psr View Post

What is a limiter ?? How it chokes the firing ?
There is a Rev limiter in ZMA to limit the Revs to approximately 8,300 RPM, to save engine. This is done by cutting off plug firing beyond this RPM limit.What happens at that moment is that the pulses to the Ignition coil from CDI is stopped ,so that no plug firing takes place.
I checked my zma speedo with a P200, a R15 and a Punto.
Results: Me 128,P200 130,R15 125, Punto 123...all going in same speed
The ZMA does 15 Kmph for every 1,000 RPM in stock settings...So with a limiter at 8.3K RPM max speed is 124.5 Kmph true.If you had done any change to the drive ratio by changing either sprocket or tire size , then resultant speed differences will be there.

Ohh...SO the limiter is there in ZMA as well, I was thinking only FI bikes have rev limiter and the ecu prevents it to go beyond 8.5k..my bad

Well, I think the limiter is screwed up in mine coz i ve touched 9k RPM couple of times recently!!!I am running on 36T rear sprocket and 110/90 rear tyre.

Originally posted by SriramEfunds View Post

Let me know when you guys planning...!

Once chennai cools down a little, or else we have to ride till Pondy to cool ourself down in a cheaper price

(my carb is whisperring psr psr... @lonely nights tho,donno whats in its mind )

**ravneetsingh** · 07-18-2011, 07:12 PM

Originally posted by vineeth areth View Post

nice find there, parts are pretty cheaper, but am a bit worried about the reliability front

oh man you bought a pair or what?? bro with that budget, you should've bought a plug and play relay kit.

generally relay comes with a connector/coupler and few cms of wires attached to it, all you have to do is get those wires extented for few more cms so that you can connect everything properly. so get your self a 14-16guaze 12v automotive wires(5-6) meters will do the job.

yup

yup everything will be the same.

am posting the list of things again
headlight relay kit for all 12v vehicles

A relay+ coupler 120rs

4-5 meters of automotive wire-14 or 16gauze 30-50rs

2 ring clips 1-2rs

2 piano clips(male) 1-2rs

1 fuse box and a fuse 20-30rs

1 ceramic bulb holders h4 type 20rs

thanks man..this gonna help me..
cheers

**psr** · 07-18-2011, 07:12 PM

Originally posted by Only Amit... View Post

Ohh...SO the limiter is there in ZMA as well, I was thinking only FI bikes have rev limiter and the ecu prevents it to go beyond 8.5k..my bad

Well, I think the limiter is screwed up in mine coz i ve touched 9k RPM couple of times recently!!!I am running on 36T rear sprocket and 110/90 rear tyre.

Once chennai cools down a little, or else we have to ride till Pondy to cool ourself down in a cheaper price

(my carb is whisperring psr psr... @lonely nights tho,donno whats in its mind )

May be limiter had shifted,or most probably the RPM is on downhill acceleration, when with your shorter ratio with 36 teeth rear sprocket, the bike was pushing the engine...Try going on level or slight upward inclination to know about this....(.i am not a kind person to carb..i drill them

so may be your carb is having nightmares of me looking like Freddy...he he he..)

**vineeth aredath** · 07-18-2011, 07:14 PM

Originally posted by psr View Post

Vineeth that is s good kit,with Ceramic Bulb connector which will make a lot of difference in the long run ,with the 50/60 watts bulb...

yup sir but same connectors are available in the market for 20-30 rs range. yup these kits are pretty good but expensive.
posting a pic of separate holder unit.

**psr** · 07-18-2011, 07:15 PM

Originally posted by vineeth areth View Post

yup sir but same connectors are available in the market for 20-30 rs range. yup these kits are pretty good but expensive.
posting a pic of separate holder unit.

Thanks Vineeth for the info...will be hunting for one soon in chennai.

**MAXzma** · 07-18-2011, 07:16 PM

Originally posted by Only Amit... View Post

Once chennai cools down a little,
Keep dreaming man! Thats the only thing about chennai which scares me..

or else we have to ride till Pondy to cool ourself down in a cheaper price

Ah now it sounds like a plan!

Replies in BOLD.

**vineeth aredath** · 07-18-2011, 07:21 PM

Originally posted by ravneetsingh View Post

thanks man..this gonna help me..
cheers

welcome bro

Originally posted by psr View Post

May be limiter had shifted,or most probably the RPM is on downhill acceleration, when with your shorter ratio with 36 teeth rear sprocket, the bike was pushing the engine...Try going on level or slight upward inclination to know about this....(.i am not a kind person to carb..i drill them

so may be your carb is having nightmares of me looking like Freddy...he he he..)

sir am a bit confused now. the limiter yr talking here, is it a separate unit or something which is embedded in the cdi itself??

Even i've crossed the 9k marks many times

in fact even during ma last crash

**ravneetsingh** · 07-18-2011, 07:23 PM

@psr
hello sir.,
juss need ur help...actually my zma been to 140..but from last few weeks i haven't raised it so much..now its speedo meter is stuck at 119 ,its not crossing it...
ok i know its very risky to get that speed...but sir i m worried abt it, y this is happening..
i changed filter,oil,plug. its covers 10k recently.I went to HH srvice center,but they don' have any idea abt this.rpm stuck at 7.5 once and other times its stop at 7.8 thats it.
thanks..

or any of my frnd know abt this plzz guide me..
thanks

**acs1207** · 07-18-2011, 07:26 PM

Can be termed as OT , but I hope the moderators will allow this since I'm just trying to give a feel-good factor . .

Originally posted by MAXzma View Post

And last but definitely not the least, a really big thanks to psr(Raghavan) sir for his guidance, during the past one week. I kept troubling him every now and then by calling but he would go on explaining every minutest detail. The best part is he even calls back to check out how its going(now how many people do that these days)..

I do not understand a bit if he gets too technical

but during this past one week, I have learnt a massive amount of things. Thanks a ton sir!

Guys like him are indeed rare in today's world

.

Originally posted by psr View Post

I am happy for you...You took the right decisions at the right time, spent hard earned money and quality time to make your ZMA what it is now...and your knowledge is much more now,which will be of immense help in future...
Wish you Best of Luck Always.

Without you to guide him , he wouldn't have done all that

. Even if he had got the problems rectified at ASS , he wouldn't be as happy as he is now . This is what this forum is for - to help each other gain knowledge .
Since I've joined Xbhp , I've learned quite a bit ( well , may be only a tiny bit

) about ZMA R .When I bought the bike , it was for me just a 4 stroke bike which was comfortable . The earth being flat would've been more true

. A great deal of the knowledge I gained came from you . Newbies will be attracted when they see the posts which shows problems being rectified . And explanatory posts ( latest I think is vineeth's H/L relay connection explanation) sure gives a nudge to the wannabe DIY-ists .
Keep the spirits up !!

**acs1207** · 07-18-2011, 07:33 PM

Originally posted by prashk View Post

@Amit, MAXzma, Vineeth and others from Bangalore: How about a Bangalore-xBhp-Karizma-R owners meet?

As we're pressed for time we can just do a CCD/Coffee/tea meetup? A ride is always welcome, but now we can look at Vineeth's Joeled Zeema, MAX's ZMA v.2, my oh-its-stock! ZMA and Amit's ZMA, dont know much about it, thats a pretty good reason to look at it

(but it is soon going to be Joeled IIRC?)
I have a pretty decent camera to shoot some good pictures as a bonus.

Guess you have to wait for vineeth's "Zeema" to be up and running !

**acs1207** · 07-18-2011, 07:44 PM

Originally posted by psr View Post

What is a limiter ?? How it chokes the firing ?
There is a Rev limiter in ZMA to limit the Revs to approximately 8,300 RPM, to save engine. This is done by cutting off plug firing beyond this RPM limit.What happens at that moment is that the pulses to the Ignition coil from CDI is stopped ,so that no plug firing takes place.

Must've been what happened to me a couple of times . And once the pulse to the ignition coil is cut , does it resume immediately or does it take some time ? If I remember correctly , it was nearly a minute or so before I could start the bike .

**psr** · 07-18-2011, 07:57 PM

Originally posted by vineeth areth View Post

sir am a bit confused now. the limiter yr talking here, is it a separate unit or something which is embedded in the cdi itself??

Even i've crossed the 9k marks many times

in fact even during ma last crash

The pulses from the pulse coil is used for firing the plug at correct time, and by sensing the throttle position through TPS(throttle position sensor),the RPM to ignition timing advance or retard from stock setting is calculated by the CDi.There is another circut embedded in it which uses the same pulses to know when the RPM is crossing a particular pre-set level, and switches on a circuit to kill the ignition coil pulses....with variation in component value over time and temperature, this point is shifted, in some cases..
If the CDi contains Microcontroller then this point will not shift because the functioning is by counting number of pulses per second by a Digital counter, and not controlled by the averaging circuit like in Analogue CDi.

**psr** · 07-18-2011, 08:06 PM

Originally posted by ravneetsingh View Post

@psr
hello sir.,
juss need ur help...actually my zma been to 140..but from last few weeks i haven't raised it so much..now its speedo meter is stuck at 119 ,its not crossing it...
ok i know its very risky to get that speed...but sir i m worried abt it, y this is happening..
i changed filter,oil,plug. its covers 10k recently.I went to HH srvice center,but they don' have any idea abt this.rpm stuck at 7.5 once and other times its stop at 7.8 thats it.
thanks..

or any of my frnd know abt this plzz guide me..
thanks

From what you are saying i presume you had changed the AIR FILTER.
Stock ZMA is setup lean to give FE..An old air filter which is clogged will make the AFR Rich throughout the RPM range.
Now that you have stock air filter which breathes better, your AFR is as stock..lean..The final gear(5th gear) ratio of ZMA is also short ie., 0.8. So unless you go for richer AFR your speed is likely to be low....
In the absence of any other problem ,..there is nothing to worry,and wait for the new air filter to start clogging for higher speeds....just my thought

**psr** · 07-18-2011, 08:08 PM

Originally posted by acs1207 View Post

Must've been what happened to me a couple of times . And once the pulse to the ignition coil is cut , does it resume immediately or does it take some time ? If I remember correctly , it was nearly a minute or so before I could start the bike .

The onset and recovery time are dependent on the inside components.

**Only Amit...** · 07-18-2011, 08:12 PM

Originally posted by psr View Post

May be limiter had shifted,or most probably the RPM is on downhill acceleration, when with your shorter ratio with 36 teeth rear sprocket, the bike was pushing the engine...Try going on level or slight upward inclination to know about this....(.i am not a kind person to carb..i drill them

so may be your carb is having nightmares of me looking like Freddy...he he he..)

I have touched 9k rpm on straight road only, on upward inclination sometimes it struggles to go past 5k rpm in 5th gear.May be my carb is taking the driller otherwise

@Vineeth: Can I put a 55/60 auxilary lamp along with HL HID by using the relay? Can the stock battery take the load?
@Gowtham: Dude, which aux lamp are you planning to put? I am eyeing on hella microde but not sure where I will place it. Don't want to put a crashguard which hits front mudguard while offroading

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