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

Query Approved

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

Please answer my question

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

still no reply ? :-(

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

1. Check for the fuel inlet pipes into the carb
2. Mixture might be running lean for draw move power at higher rpm, hence engine dying
3. Flush your fuel tank once and fill petrol and see.

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

Thanks sigh...at last someone replied so what do you mean by "mixture might be running lean for draw move power" ?? I'm completely zero at that sentence.and for the fuel tank let me tell you that its a new one so its clean , also where and which inlet pipe are you talking about? the mechanic checked and cleaned a few pipes in and out of the carburetor...

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

When he says mixture is lean, he is talking about the Air to fuel Ratio!!! Otherwise known as AFR..

Hipcups could be because of blocked hose.. were all the hoses cleaned?

Did your mechanic clean the carb properly?
[MENTION=32286]psr[/MENTION] sir [MENTION=28527]sibun[/MENTION] Anna [MENTION=57344]RohIIT[/MENTION].. please check out this thread

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

You already said it. Water going in fuel line is bad news, My advice if you are really attached to bike then find a new tank and get it painted. If not then repair cost will set you back a lot.
Also post a pic of spark plug, problem at high revs means its running very rich .

check air filter if its blocked.

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

He has a new tank.. I assume the mechanic has already changed the tank

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

Yes you're right the mechanic has installed a new tank and also a new spark plug but he used the same old semi-rusted fuel meter apparatus he took out from the old fuel tank because I couldn't find that apparatus at the shop next to him! is it safe? or it will rust the new tank too? Also he didn't clean and even mention of any air filter or mixture, he mentioned just carb and fuel tank !!Let me elaborate the story again. Initially I took the bike to the mechanic with a completely rusted tank from the inside filled with rain water mixed with decaying petrol, a jammed carburetor and other accessory issues. So at first he just fired the engine after cleaning the old tank with pressurised water and cleaned the carburetor. He suggested me to drive the bike for a few days as according to him the rust would be washed through the fuelling with time. After two days the bike was not starting then I took the bike back to him and he cleaned the carb again so the engine fired then again the engine was not starting after one day and I took the bike back to him and he changed the spark plug and so on...this happened several times until his fellow mechanic suggested me to get the fuel tank replaced. I did so and right after replacing the tank he cleaned the carb for the 4th time but just for once. Since then although the bike hasn't gone to the mechanic and the engine hasn't stopped starting completely but it gives very very irritating jerks and hiccups when I try to accelerate the bike and when I keep on pulling the throttle the engine turns off while still driving but restarts after releasing the clutch. I thought that with time it may be possible that the remaining post-carb rust would get washed away but now I doubt it.RohitIIT can you please tell me what hose are you talking about?

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

Ok!! How about the fuel knob? The reserve wala knob! Is it replaced or has it been cleaned?? I assume that could be the problem.. how about the Air filter condition?

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

Yes you're right again, he replaced that fuel knob at the very first visit, sorry I forgot to mention that, thanks for reminding me But sorry I don't know where is my bike's air filter and what it looks like! May be this is what the mechanic was taking advantage of, he knew that I had a very little knowledge of bikes so he kept me revisiting and paying him by not addressing the actual problems. Now his latest story was servicing the clutch plates? But now I realize there could be a number of other issues with the other parts of the bike like you've mentioned ! after all it was standing still in hot sun, rain and storms for 6 years...So where do I check for the filter and how does it look like?----consecutive posts auto-merged-----Yes you're right again, he replaced that fuel knob at the very first visit, sorry I forgot to mention that, thanks for reminding me But sorry I don't know where is my bike's air filter and what it looks like! May be this is what the mechanic was taking advantage of, he knew that I had a very little knowledge of bikes so he kept me revisiting and paying him by not addressing the actual problems. Now his latest story was servicing the clutch plates? But now I realize there could be a number of other issues with the other parts of the bike like you've mentioned ! after all it was standing still in hot sun, rain and storms for 6 years...So where do I check for the Air filter and what does it look like?

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

Are you still using old petrol from rusted tank and old tank lid?? Maybe water in petrol is the reason. Also change the air filter located at left side, opposite side of battery

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

I am not sure where the Air filter is located on the Ambition.. if I am right, all the Hero Bikes have it on the left hand side.. open the left side cowl and there will be an air filter box, unscrew it and you will find it.. I am pretty sure if it is not replaced, it will be one of the factors to the mentioned problem!!

Get it replaced. Might hardly cost 100-200/-

He mentioned he has changed the Petrol Tank like 3 times already which means he probably has new fuel filled up.. please do care to read the previous posts.. not to offend you or anything..

But petrol lid probhe is using the old one!! So you mean to say there might be air lock? Which is again quite possible!!
[MENTION=86805]Ambition135[/MENTION].. when you face hiccups, stop the bike on the side, open the lid for a little while and close it again! See if it vanishes!!

Moreover, I have a feeling the Petrol hose you are using are old and may require changing!!

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

[MENTION=78170]Darchorse[/MENTION] [MENTION=27501]rreneav1987[/MENTION]
I replaced the old fuel tank in the first place to check if the jerking goes away because the rust from the inside of the old tank was washing all the way through the carb as I could see the yellowish debris mixed petrol when I removed the cover under the fuel knob so I thought may be that was choking the carb.
So the lid must not the problem as it has been there on both of the tanks with the bike still jerking. and the old tank didn't have any petrol but a bad smelling dark coloured mixture of rain water and decaying petrol so it was thrown right away
now I'm sorry to sound dumb but which petrol hose are you talking about? those thin metal pipes moving in and out of the carb and the engine? or a big plastic mouth opening under the front of the seat
that seems to suck air while running the engine? or the pipe that is covered with a rope like covering coming from under the seat and goes to the engine?
if you could add a picture, that will be really helpful....thanks a lot