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**Aneesh@4GHz** · 06-02-2012, 11:11 AM

Originally posted by psr View Post

If you connect two horns in series the voltage will get divided between the two ie., each horn will get half of the total voltage...in ZMA's case it will be 12V/2 = 6 volts for each horn.

So the horns will be working at its half potential right?

**psr** · 06-02-2012, 11:19 AM

Originally posted by Aneesh@4GHz View Post

So the horns will be working at its half potential right?

At half the voltage it may not work at all..If the horn is rated at 12 Volts, then at least 10.5 V is required to work.

**Aneesh@4GHz** · 06-02-2012, 11:21 AM

Originally posted by psr View Post

At half the voltage it may not work at all..If the horn is rated at 12 Volts, then at least 10.5 V is required to work.

Last time when Ashwin fixed wind tones in his zma,he fixed it in series and it was working.But blown earlier.

**Above_All** · 06-02-2012, 12:35 PM

Series Connection : positive Terminal of battery is connected to A terminal of first horn , B terminal of first horn is connected to A terminal of second horn & B terminal of second horn is connected to negative terminal of battery .
Current is same in all the horns connected in series , but voltage gets divided .
If I is total current supplied then
If V is total voltage supplied which is 12 volt in case of bike battery then voltage accross the 2 horns in series is 6 volt each .
Disadvantage of Series Connection is , if one horn fails then other also won't work .

Parallel Connection : Each horns both terminals are connected to battery . So voltage across each is same supplied voltage , where as total current is the sum of the currents through each horn , in accordance with Kirchoff's Current Law . If one horn fails it won't affect circuit & other continue to function .

Circuit Diagram of both are posted by ASC .

Note : In Karizma ZMR both horns are in Parallel Connection .

Originally posted by acs1207 View Post

Edit- oops... seems I got the switch on the wrong terminal in the diagram .

In Maruti Omni , positive supply to Horn is contineous , while negative is through horn switch .

Edit : How much engine oil is needed for Karizma - R as per owners manual ?

**sunny_** · 06-02-2012, 07:27 PM

Originally posted by SriramEfunds View Post

If there is any way we could completely take a back up I would do so for future use, in case of site crashes out like it happened last time.

Don't worry regarding the site crashing, have a plan after exam. For others, they can just visit PSR Sir's profile and check all posts made by him and can copy them to their computer.

Originally posted by psr View Post

What I had suggested of hitting the carb with some blunt material is only for emergency needs..Remember hitting a carb ,with a stone or sharp object,can actually damage it beyond repair....
Best is to open the Air feed rubber hose near the carb., and lifting the slide with your finger....this will not damage the carb., in any way.

Alright Sir, I'll not attempt that thing again until there is an emergency.
Also, when the slide is stuck there then how come it revs beyond 6k rpm in neutral but not in any gear...is it that the motion restricts it and when the bike is in neutral the engine is actually quite free to rev??

**acs1207** · 06-02-2012, 07:31 PM

Originally posted by sunny_ View Post

took the bike for a spin on a nice road, was fed up with vehicles passing by and me stuck below 60 kph....

...... found a coconut

smacked the side of the carb near the idle screw
Dont let the mechs hear about this trick - let them earn what we pay .
BTW , can you reach the carb with a coconut ?
............
So for those who face this problem can try this quick DIY (not necessarily with coconut though

)
Better a coconut than a stone since it's already been tested .

Originally posted by psr View Post

What I had suggested of hitting the carb with some blunt material is only for emergency needs..
But sir , I think it was an emergency - he was fed up !!

Remember hitting a carb ,with a stone or sharp object,can actually damage it beyond repair....
and can cost you upwards of 4000/-
Best is to open the Air feed rubber hose near the carb., and lifting the slide with your finger....this will not damage the carb., in any way.

If you connect two horns in series the voltage will get divided between the two ie., each horn will get half of the total voltage...in ZMA's case it will be 12V/2 = 6 volts for each horn.

Originally posted by Aneesh@4GHz View Post

So the horns will be working at its half potential right?

Originally posted by Aneesh@4GHz View Post

Last time when Ashwin fixed wind tones in his zma,he fixed it in series and it was working.But blown earlier.

Blown ?
Were the horns new or old ones? Also did the sound match with normal wind tone horns ?
If you have old 6v horns , you may fix it in series . But the problem is that if one gets faulty then both won't honk .

Originally posted by Above_All View Post

If V is total voltage supplied which is 12 volt in case of bike battery then voltage accross the 2 horns in series is 6 volt each .
That's what I said - you can use 2 6V horns in series in a 12V set up .
Disadvantage of Series Connection is , if one horn fails then other also won't work .

Circuit Diagram of both are posted by ASC .
it's acs . Well , try ascgen on google . it's a cute picture software .
Note : In Karizma ZMR both horns are in Parallel Connection .

In Maruti Omni , positive supply to Horn is contineous , while negative is through horn switch .

Edit : How much engine oil is needed for Karizma - R as per owners manual ?

**acs1207** · 06-02-2012, 07:38 PM

Originally posted by sunny_ View Post

Also, when the slide is stuck there then how come it revs beyond 6k rpm in neutral but not in any gear...is it that the motion restricts it and when the bike is in neutral the engine is actually quite free to rev??

That's it .
In neutral gear the engine has no load . try the same accelerator position when going uphill and downhill . when going uphill the load will be more and you may have to give more acc to get the speed attained when you were going downhill .
Well , that's the laymans point of view .

Edit- the post came in while I was typing my reply - hence the back to back post .

**psr** · 06-02-2012, 09:44 PM

Originally posted by sunny_ View Post

Alright Sir, I'll not attempt that thing again until there is an emergency.
Also, when the slide is stuck there then how come it revs beyond 6k rpm in neutral but not in any gear...is it that the motion restricts it and when the bike is in neutral the engine is actually quite free to rev??

the answer to your question is below....by Mr.Arun

Originally posted by acs1207 View Post

That's it .
In neutral gear the engine has no load . try the same accelerator position when going uphill and downhill . when going uphill the load will be more and you may have to give more acc to get the speed attained when you were going downhill .

Due to requests from some members I had started a new thread on LOCOMOTIVES explaining their growth from Steam to Diesel Electric to Electric..It is posted in Coffee Lounge OFF TOPIC Discussion as "AN Intro To Locomotives"...Those who are interested can visit the thread and can raise queries to clear doubts.

**Above_All** · 06-02-2012, 10:38 PM

Originally posted by acs1207 View Post

it's acs . Well , try ascgen on google . it's a cute picture software .

Opps sorry , yes ACSII ART looks awesome .

Originally posted by psr View Post

Due to requests from some members I had started a new thread on LOCOMOTIVES explaining their growth from Steam to Diesel Electric to Electric..It is posted in Coffee Lounge OFF TOPIC Discussion as "AN Intro To Locomotives"...Those who are interested can visit the thread and can raise queries to clear doubts.

That thread is awesome , just got busy with study will check that thread from start after the exam .

**Aneesh@4GHz** · 06-02-2012, 11:05 PM

Originally posted by acs1207 View Post

Blown ?
Were the horns new or old ones? Also did the sound match with normal wind tone horns ?

New one,Out of box.Same,everything was same.I think only one blown.

**sunny_** · 06-03-2012, 12:30 AM

Originally posted by psr View Post

the answer to your question is below....by Mr.Arun

Due to requests from some members I had started a new thread on LOCOMOTIVES explaining their growth from Steam to Diesel Electric to Electric..It is posted in Coffee Lounge OFF TOPIC Discussion as "AN Intro To Locomotives"...Those who are interested can visit the thread and can raise queries to clear doubts.

Originally posted by acs1207 View Post

That's it .
In neutral gear the engine has no load . try the same accelerator position when going uphill and downhill . when going uphill the load will be more and you may have to give more acc to get the speed attained when you were going downhill .
Well , that's the laymans point of view .

Edit- the post came in while I was typing my reply - hence the back to back post .

Arun Sir, the coconut was small enough and its tip did the trick ..

and I got the load thing now

@PSR Sir, I'm just keeping an eye to that thread and trying to pile up my questions. One of my holiday assignments. I'm gonna ask a lot of questions in the same.

**psr** · 06-03-2012, 12:44 AM

Originally posted by sunny_ View Post

@PSR Sir, I'm just keeping an eye to that thread and trying to pile up my questions. One of my holiday assignments. I'm gonna ask a lot of questions in the same.

I will be switching to Diesel Locos soon...so for steam You can start posting queries

**ashwinprakas** · 06-04-2012, 07:16 AM

@ACS Sir,
I had opted for WindTones twice and dropped it and gone back to stock, which later was replaced by Tractor horns.

First time, was connected in Series, and one of the Horns blew within a weeks time.

Second time, was connected in Parallel and worked perfect untill the bike was kept idle and ants ruined the relay. So finally got fed up and fixed the WindTones on my ZEN.

Both times I used brand new pairs.

Edit.

The Headlamp of the 2011 ZMA behaves just like before, when high is on low is off and vice versa, and when using low and you press the pass, both high and low light up at the same time(Best lighting experience, so when riding through real dark roads I place the headlight switch in mid position so that both high and low stay on at the same time.). But the same cannot be replicated when using high beam, cause the pass button becomes unresponsive when the bike is in high beam, meaning the low will remain off even if the pass is pressed in high beam.

**sibun** · 06-04-2012, 02:42 PM

Originally posted by ashwinprakas View Post

@ACS Sir,
I had opted for WindTones twice and dropped it and gone back to stock, which later was replaced by Tractor horns.

First time, was connected in Series, and one of the Horns blew within a weeks time.

Second time, was connected in Parallel and worked perfect untill the bike was kept idle and ants ruined the relay. So finally got fed up and fixed the WindTones on my ZEN.

Both times I used brand new pairs.

Edit.

The Headlamp of the 2011 ZMA behaves just like before, when high is on low is off and vice versa, and when using low and you press the pass, both high and low light up at the same time(Best lighting experience, so when riding through real dark roads I place the headlight switch in mid position so that both high and low stay on at the same time.). But the same cannot be replicated when using high beam, cause the pass button becomes unresponsive when the bike is in high beam, meaning the low will remain off even if the pass is pressed in high beam.

For any horn remember do not connect in series. As the voltage get divided then the horn will get only 6v supply and thus the diaphragm is damaged. horn is nothing but a speaker and like speaker if you connect low power amp to it it will get damaged but a high power amplifier will not damage the speaker until full volume is not given.
So always connect in parallel.

**MAXzma** · 06-04-2012, 09:41 PM

Originally posted by ashwinprakas View Post

... so when riding through real dark roads I place the headlight switch in mid position so that both high and low stay on at the same time.). ....

The switch of my 7 yr old ZMA is a bit loose.So I had been following the same during my highways rides until I got aux. lights fixed..

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