Announcement

**rreneav1987** · 10-10-2016, 08:09 AM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Ambition135 View Post

I believe you're talking about the outlet from the tank at the bottom left side and the knob that is attached to that outlet to which a simple rubber pipe is connected?The mechanic was using the petrol to clean the bike parts from that knob by pulling out the rubber pipe from that knob. The fuel flow from that knob was good and last time when I remember he was checking the carb float he could see the fuel flowing well. Actually, the mechanic checked the carb two days back, it was clean and full of petrol so the needle is also working well.When the mechanic checked the filter it had completely disappeared and turned into a 12 year old dirty loath of fibers and there was also a jali support in the shape of a sqaured hexagon, it was jammed and the pores were filled with rust and it seemed to be made with regular jali that we use in doors and windows. I couldn't find it anywhere and he told me that it will just support the filter foam and will not choke the air so we could use the same old jali, I had to go with that out of no choices. So, I hope it will work fine, that was one thing and the next was, he replaced the spark pkug for the second time in 2 months just to waste my money once again. The third thing was the carb jets; the mechanic said he had already replaced them but I still made him open the carb and clean the jets which he did and it was all clean. He pulled out two long hollow needles from the top part of the carb one with multiple pores and blew air into it from his mouth and then took out another one from another hole and did the same, after that he said it was all clean.Now, a senior mechanic jumped into the scene and drove the bike to come to new conclusion from his expertise, he said that there is an electricity problem in my bike that will be repaired at a special electricity wala mechanic for which I'll need to take even more trouble and spend even more money! I laughed it off and told him straight up that if there was any electricity problem the bike won't even start ! Do you think I was right?? Do you think that there could be any electricity problem in the bike that could cause those jerking hiccups while increasing the speed??

It is possible that the ignition coil needs to be checked.. I can't comment on it though.. am no bike expert but have had some experience out of which I can help.. yes! My ZMR when she was new back in 2010 had stalling issues where the bike suddenly stops for no reason and would take few minutes to hours to start..

The SVC guys even said I will have to get the fuel pump replaced in warranty.. I took my bike to another SVC and found the problem was with the ignition coil wire loose..

You can do one thing.. pull out the Spark plug wire.. not the Spark plug but just the cable and check to see how much Spark is getting generated..

How to do it?? Here is how..

Pull out the Spark plug cable
Pull out the Spark plug cap from the cable end
Hold the wire towards any part the chassis and attempt to kick start the bike or self start the bike..

You will notice sparks from the Spark plug cable

a video upload of this would be of great help!!

You can do this yourself.. tag [MENTION=32286]psr[/MENTION] [MENTION=57344]RohIIT[/MENTION] and [MENTION=28527]sibun[/MENTION] [MENTION=41586]Divya Sharan[/MENTION]

They can help better

**Ambition135** · 10-12-2016, 06:35 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Sorry been engaged in an important stuff....so lets get back to coil, where is the ignition coil and how does it look like? does it have to do anything with the spark plug?

**Anmol Sharma** · 10-12-2016, 06:42 PM

Re: [URGENT] Ambition 135 jerking and engine turning off while pulling the throttle

Originally posted by Ambition135 View Post

My 12 years old ambition 135 (2004 model) was standing still for 6 years under the sun and suffered hundreds of rains and storms during this period which also rusted the inside of its fuel tank and the tank punctured letting water into it. This let the rust flow into the carburetor messing the fuel flow and spreading rust mixed fuel into the entire fuelling system of the bike. I took it to the nearby mechanic but he only made temporary fixes by cleaning the carburetor and replacing the rusted fuel tank, there has been a consistent jerking hiccups like problem as if its starving of fuel at higher gears if I pull the throttle for acceleration and ultimately the engine turns off right away while I'm still driving and restarts after releasing the clutch. If the carburetor was cleaned 2, 3 times then why the problem still persists??

I have faced a similar issue but not suvh conditions my suggestion would be get the air filter and spark plug replaced and then on a warm engine try to tune the carb. Hope this helps!

**Brezon95** · 10-12-2016, 07:28 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Ambition135 View Post

Sorry been engaged in an important stuff....so lets get back to coil, where is the ignition coil and how does it look like? does it have to do anything with the spark plug?

Ignition Coil is located below the petrol tank. The wire that connects to spark plug cap comes from ignition coil. Ignition coil generates high voltage current and transfer it to the spark plug for combustion of air fuel mixture.

**rreneav1987** · 10-12-2016, 09:45 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Brezon95 View Post

Ignition Coil is located below the petrol tank. The wire that connects to spark plug cap comes from ignition coil. Ignition coil generates high voltage current and transfer it to the spark plug for combustion of air fuel mixture.

You got it spot on!! If less current is transferred to the Spark plug, there will be less Spark to the Spark plug which can also cause the bike to stale on higher RPM..

Originally posted by Ambition135 View Post

Sorry been engaged in an important stuff....so lets get back to coil, where is the ignition coil and how does it look like? does it have to do anything with the spark plug?

**Ambition135** · 10-13-2016, 04:46 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

So this means that if the coil is faulty and generates less current then the bike would be jerking and will give hiccups if I speed up?? how much will the coil cost if I replace it?

**Anmol Sharma** · 10-13-2016, 05:58 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Ambition135 View Post

So this means that if the coil is faulty and generates less current then the bike would be jerking and will give hiccups if I speed up?? how much will the coil cost if I replace it?

Bro try changing air filter first and have you checked if the spaek is being produced or not.? If so then the coil wont cost you morr than 800 bucks would ask you to check air filter first

**rreneav1987** · 10-13-2016, 06:52 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Anmol Sharma View Post

Bro try changing air filter first and have you checked if the spaek is being produced or not.? If so then the coil wont cost you morr than 800 bucks would ask you to check air filter first

Sir! He has already changed the Air filter/ Spark plug..
[MENTION=86805]Ambition135[/MENTION]

Please get the Spark checked.. that can help you identify if the ignition cis the culprit

**Ambition135** · 10-14-2016, 12:41 AM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

I'll summarize a few things again because I think Its getting a bit confusing,
My bike's
1. Petrol tank has been replaced.
2. Air filter has been replaced but the rusted, decayed and choked filter support jali wasn't changed since its unavailable in the market.
3. Spark plug has been replaced and it creates enough spark as checked by the local mechanic.
4. Carb jets and the float needle have been replaced and thrice cleaned.

An uninvited senior mechanic opinionated that there is an electricity problem and it will need a special "electricity wala" mechanic to fix it.
Thats about it and nothing else apart from the above has been done.

**Srinivas sr143sr** · 10-14-2016, 04:23 AM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Ambition135 View Post

I'll summarize a few things again because I think Its getting a bit confusing,
My bike's
1. Petrol tank has been replaced.
2. Air filter has been replaced but the rusted, decayed and choked filter support jali wasn't changed since its unavailable in the market.
3. Spark plug has been replaced and it creates enough spark as checked by the local mechanic.
4. Carb jets and the float needle have been replaced and thrice cleaned.

An uninvited senior mechanic opinionated that there is an electricity problem and it will need a special "electricity wala" mechanic to fix it.
Thats about it and nothing else apart from the above has been done.

Hi dude,

As you are very much sure about Carb, Valves (the regular culprits) for misfiring/jerking, i am giving you the following information.

AFAIK that your bike is DC and i am hoping that your bikes battery and Rectifier(Battery charger) are good.

As rreneav1987 said, check the flow of current from sparkplug wire.

remove sparkplug wire cap. hold the wire 2-3 inches away from the end of wire with your hand (i mean to say that maintain some min. distance from end of the wire so that you donot get shock). now hold the wire end to engine head/case with a gap of 1/2 to 3/4 th inch.

start the bike. observe the spark. raise the throttle gradually. you should observe good dark blue spark. now try to increase the gap from 1/2inch to 3/4 inch may be some little more along with raising throttle. now with excess throttle the spark should be able to jump that distance too(3/4th inch).

If the spark is missing/ if you observe orange or light colour spark at any point then there might be a problem with the following--

--CDI
--High tension coil or Ignition coil (Under petrol tank)(not sure wheres it present in ambition)
--Pickup coil (In stator)
--Sparkplug cap and Sparkplug cable

Apart from the above, there are nothing to look at for ignition related problems in your bike.

CDI

Very notorious and famous culprit for jerking/misfiring/making the bike dead. Clean the sockets with petrol, dry it and check once.

None can test it(i mean nobody does). Only option is to check with similar CDI and eliminate it being a culprit.

I think Your bike is DC and i have posted a pic of DC ambition CDI, from our xbhp.

source:

xBhp.com : The Global Indian Biking Community

http://www.xbhp.com/talkies/blogs/stunshiva/488-hero-honda-ambition-135-2003-kick-drum-cdi-problem.html

Ignition coil

Clean the terminals with sand paper. Check the resistance using multimeter and if it is exceeding the limit(I have no idea about the limit). you should go for a new one. Its better to eliminate the CDI first and check this later.

Pickup coil

The pic is stator coil assembly, present at left side of the bike, inside the stator cover near the gear lever.

The black coil(in pic) at the bottom right is pickup coil. It is the one which sends the signal to cdi when to fire. It is also prone to fail but not as much as cdi.

clean the terminal wires socket that are originating from the stator cover and check once.

Sparkplug cap (Hard plastic cap) and Spark plug Cable
its the black cap where you fit it on the sparkplug. If your cap has 5Kohm resistance (with 5K omega symbol on cap), it might develop more and more resistance due to the bad weather your bike had experienced during the past 6 years. check for resistance it should around5.xx K resistance . More resistance less current transfer.

As its six long years, its better to replace the sparkplug cable wire thats coming from above shown Ignition coil

Better solution for Sparkplug cap: Throw it(retain rubber holders of cap) and buy OEM Sparkplug cap of Pulsar having only 1K resistance. NO PROBLEM AT ALL. You can safely replace it, take my word. Costs around 80rs(not sure)

Change Sparkplug cap and Sparkplug wire for sure, as they dont cost much.

The above ones completes 100% check for electrical problems relating to ignition.

Read the post thrice and make an order like-- checking spark, cleaning sockets and checking the remaining things later.

Hope my points help and i think i have elaborated as much as possible.

Hope your bike will be soon running like before..

Regards,
Srinivas T

**Ambition135** · 10-14-2016, 07:45 AM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Srinivas sr143sr View Post

Hi dude,As you are very much sure about Carb, Valves (the regular culprits) for misfiring/jerking, i am giving you the following information.AFAIK that your bike is DC and i am hoping that your bikes battery and Rectifier(Battery charger) are good. As rreneav1987 said, check the flow of current from sparkplug wire. remove sparkplug wire cap. hold the wire 2-3 inches away from the end of wire with your hand (i mean to say that maintain some min. distance from end of the wire so that you donot get shock). now hold the wire end to engine head/case with a gap of 1/2 to 3/4 th inch. start the bike. observe the spark. raise the throttle gradually. you should observe good dark blue spark. now try to increase the gap from 1/2inch to 3/4 inch may be some little more along with raising throttle. now with excess throttle the spark should be able to jump that distance too(3/4th inch). If the spark is missing/ if you observe orange or light colour spark at any point then there might be a problem with the following----CDI--High tension coil or Ignition coil (Under petrol tank)(not sure wheres it present in ambition)--Pickup coil (In stator)--Sparkplug cap and Sparkplug cableApart from the above, there are nothing to look at for ignition related problems in your bike.CDI[ATTACH]220198[/ATTACH]Very notorious and famous culprit for jerking/misfiring/making the bike dead. Clean the sockets with petrol, dry it and check once. None can test it(i mean nobody does). Only option is to check with similar CDI and eliminate it being a culprit.I think Your bike is DC and i have posted a pic of DC ambition CDI, from our xbhp.source:http://www.xbhp.com/talkies/blogs/st...i-problem.htmlIgnition coil[ATTACH]220199[/ATTACH]Clean the terminals with sand paper. Check the resistance using multimeter and if it is exceeding the limit(I have no idea about the limit). you should go for a new one. Its better to eliminate the CDI first and check this later.Pickup coil[ATTACH]220200[/ATTACH]The pic is stator coil assembly, present at left side of the bike, inside the stator cover near the gear lever.The black coil(in pic) at the bottom right is pickup coil. It is the one which sends the signal to cdi when to fire. It is also prone to fail but not as much as cdi.clean the terminal wires socket that are originating from the stator cover and check once.Sparkplug cap (Hard plastic cap) and Spark plug Cableits the black cap where you fit it on the sparkplug. If your cap has 5Kohm resistance (with 5K omega symbol on cap), it might develop more and more resistance due to the bad weather your bike had experienced during the past 6 years. check for resistance it should around5.xx K resistance . More resistance less current transfer.As its six long years, its better to replace the sparkplug cable wire thats coming from above shown Ignition coilBetter solution for Sparkplug cap: Throw it(retain rubber holders of cap) and buy OEM Sparkplug cap of Pulsar having only 1K resistance. NO PROBLEM AT ALL. You can safely replace it, take my word. Costs around 80rs(not sure) Change Sparkplug cap and Sparkplug wire for sure, as they dont cost much.The above ones completes 100% check for electrical problems relating to ignition.Read the post thrice and make an order like-- checking spark, cleaning sockets and checking the remaining things later.Hope my points help and i think i have elaborated as much as possible.

Hope your bike will be soon running like before..

Regards,Srinivas T

Wow thanks for such a wonderful and descriptive answer. No doubt you must be an expert

will try out all the steps you mentioned...

**Srinivas sr143sr** · 10-20-2016, 05:55 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Ambition135 View Post

Wow thanks for such a wonderful and descriptive answer. No doubt you must be an expert

will try out all the steps you mentioned...

Haha.. im not an expert dude.. all these came out of experience and checking my selves when my bike had the electrical problems.

No electrician checks or tells about these things. simply they tell for a replacement since they dont even know these things.

Any updates..???

**layman806** · 11-23-2017, 06:09 PM

Re: Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Originally posted by Ambition135 View Post

Wow thanks for such a wonderful and descriptive answer. No doubt you must be an expert

will try out all the steps you mentioned...

So, did you figure out what went wrong??

Announcement

Ambition 135 jerking and engine stopping pulling the throttle to increase the speed

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment