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**Balgi** · 12-18-2014, 10:30 AM

Re: Hero Karizma ZMR (2014 version)

Originally posted by sibun View Post

I do not think the idling problem to be from Cam shaft, also cannot rule out that. But first of all check the throttle body for idle air passage clean. Cam shaft failure in new bike is much less chance.

If the cam shaft is failing early then mail to hero for solution as the camshaft is made from mild material which is causing the problem.Hero will sort out the problem with its vendor. Getting a replacement and sitting quite is not the solutions. If the complaint goes to head of the company then only they can bring in change of quality provided by vendor.

However when they are fixing the cam shaft keep an eye on setting the tappets. As SVC people never use feeler guage and the new ZMR uses roller rocker arms. Tight tappets is a sure way to damage the cam shaft and rockers in the roller arm rockers.

Most of the bikes here are coming with problem after first service. Are they fiddling with the tappets adjustments in first service.

Truth is, as per standard procedure the tappets are to be left a bit loose in the run in period and then they should be readjusted after 1st service (procedure followed for run in of new bikes as well as rebored or overhauled bikes). Its supposed to help with the new engine being stiff and all. But companies these days don't bother with this anymore. The tappets if left unadjusted can cause unnecessary wear and tear like worn out camshafts and rocker arms.
SVC's usually don't pay attention to this and when one odd bike comes in with loose tappets they blame it on the owner.
Anyway you summed up what he needs to do perfectly.

**sibun** · 12-18-2014, 10:36 AM

Re: Hero Karizma ZMR (2014 version)

Originally posted by Balgi View Post

Truth is, as per standard procedure the tappets are to be left a bit loose in the run in period and then they should be readjusted after 1st service (procedure followed for run in of new bikes as well as rebored or overhauled bikes). Its supposed to help with the new engine being stiff and all. But companies these days don't bother with this anymore. The tappets if left unadjusted can cause unnecessary wear and tear like worn out camshafts and rocker arms.
SVC's usually don't pay attention to this and when one odd bike comes in with loose tappets they blame it on the owner.
Anyway you summed up what he needs to do perfectly.

I adjust my extreme tappets every 4k kms as the clearance decreases over time. Its because as bike runs they wear the valve seats thus valves gets pushed up and the clearance decreases.

Usually mechanic deduce tappets by hearing the sound and if they rings they need adjustments. They will never know a tight tappets. But my right hand is so sensitive to bike feel that even if any one of the tappets gets less clearance than recommended, i can feel it.

**Balgi** · 12-18-2014, 11:59 AM

Re: Hero Karizma ZMR (2014 version)

Originally posted by sibun View Post

I adjust my extreme tappets every 4k kms as the clearance decreases over time. Its because as bike runs they wear the valve seats thus valves gets pushed up and the clearance decreases.

Usually mechanic deduce tappets by hearing the sound and if they rings they need adjustments. They will never know a tight tappets. But my right hand is so sensitive to bike feel that even if any one of the tappets gets less clearance than recommended, i can feel it.

That is a classic sign of a good rider who knows his bike.

**abhi7013** · 12-18-2014, 11:04 PM

Re: Hero Karizma ZMR (2014 version)

- YouTube

http://m.youtube.com/watch?v=2WdEwA2VPBE&feature=youtu.be

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

That's a video showing the rpm getting stuck. Also, that's the same bike having idling issues. The bike was warm when the video was made. Hence the idling issue was gone and the rpm getting stuck issue started. What do you people think?

Sent from my C5502 using xBhp Connect mobile app

**pravinan** · 12-18-2014, 11:34 PM

Re: Hero Karizma ZMR (2014 version)

The video reminds me of the trouble that my freind had in his r15. the bike would have rough idle when cold and when warmed the needle shoots to 3k rpm and remains there till the bike gets cold. there is no acceleration loss or wierd sound from engine parts.

the issue was due to fuel injector. the fuel pressure regulator had leakage. the explanation given is the fuel pressure regulator is the one that supplies pressure to the the injector. at idle, the regulator would supply a predetermined amount of fuel and as the engine load increase, the fuel increases.

during cold start the there will be excess or no fuel and the bike may not start or rough idle. as the engine gets warmed, the regulator would determine a mininal supply of fuel and your rpm will not drop as you release the accelerator.

I may be wrong here. but these are just my assumptions based on what i have come across.

if the throttle cable is ruled out, fuel pressure regulator should be the culprit.

**dineshaugustin** · 12-18-2014, 11:54 PM

Re: Hero Karizma ZMR (2014 version)

Originally posted by abhi7013 View Post

http://m.youtube.com/watch?v=2WdEwA2...ature=youtu.be

That's a video showing the rpm getting stuck. Also, that's the same bike having idling issues. The bike was warm when the video was made. Hence the idling issue was gone and the rpm getting stuck issue started. What do you people think?

Sent from my C5502 using xBhp Connect mobile app

this seems to be a bit of major issue.....definitely not a DIY.

there are many reasons for this may be due to faulty pressure regulator , or problem with the control unit.

plz take it to ASC asap.

**abhi7013** · 12-19-2014, 12:02 AM

Re: Hero Karizma ZMR (2014 version)

Thank you for your inputs guys! Yeah, will be taking the bike to the asc day after. Hope those idiots know what a regulator is, cause i for sure did not know it untill now!

Sent from my C5502 using xBhp Connect mobile app

**dineshaugustin** · 12-19-2014, 12:15 AM

Re: Hero Karizma ZMR (2014 version)

- YouTube

https://www.youtube.com/watch?v=IZSp19IcdNA

Enjoy the videos and music that you love, upload original content and share it all with friends, family and the world on YouTube.

**fast_ferocious** · 12-19-2014, 12:58 AM

Re: Hero Karizma ZMR (2014 version)

Hey guys,

Was hearing squealing sound from the front discs during motion. As per my local mechanic, front brake pads need to be changed. He advised me to go with non hero ones that cost 150-200rs. Acc to him Hero original cost around 1200rs.

What do you think is the best option. Has anyone tried some other brake pads for ZMR?

Whats the best way to check the pad wear occasionally without removing it?

**pravinan** · 12-19-2014, 08:45 AM

Re: Hero Karizma ZMR (2014 version)

one of the easiest way to check fuel pressure regulator start the engine when cold and pinch the fuel line, the line should contain fuel. if there is fuel in the line, the line can't be pinched. If a vacuum is created, the line can be pinched.
this test is better carried when the engine is cold coz as the engine gets warmed up, the fuel line will bulge accommodating fuel there minute differences can't be visually found.

the other way is using a fuel pressure finder pump. this can find minute changes in fuel pressure. the pressure at ideal should be between 14 to 18 psi and it varies according to throttle and engine load.

the accurate method would be pluging the ECU to a OBD tool installed laptop or smart phone. not sure whether honda uses OBD1 or OBD 2. I have OBD1 scanner with me.

does hero service centers have the finder pump or the OBD scanner? coz the yamaha service center didn't have both? they are dependent on a third party guy.

**rreneav1987** · 12-19-2014, 08:52 AM

Re: Hero Karizma ZMR (2014 version)

Originally posted by fast_ferocious View Post

Hey guys,

Was hearing squealing sound from the front discs during motion. As per my local mechanic, front brake pads need to be changed. He advised me to go with non hero ones that cost 150-200rs. Acc to him Hero original cost around 1200rs.

What do you think is the best option. Has anyone tried some other brake pads for ZMR?

Whats the best way to check the pad wear occasionally without removing it?

I am using RTR front disc pads which cost me ~300/- and they do a decent job but the original ones do a better job. They are crisp and are more reliable.. i have completed more than 15000 kms on the rtr pads though

more than OEM pads [emoji3]

Sent from my Lumia 820 using Tapatalk

**abhi7013** · 12-19-2014, 08:53 AM

Re: Hero Karizma ZMR (2014 version)

Originally posted by pravinan View Post

one of the easiest way to check fuel pressure regulator start the engine when cold and pinch the fuel line, the line should contain fuel. if there is fuel in the line, the line can't be pinched. If a vacuum is created, the line can be pinched.
this test is better carried when the engine is cold coz as the engine gets warmed up, the fuel line will bulge accommodating fuel there minute differences can't be visually found.

the other way is using a fuel pressure finder pump. this can find minute changes in fuel pressure. the pressure at ideal should be between 14 to 18 psi and it varies according to throttle and engine load.

the accurate method would be pluging the ECU to a OBD tool installed laptop or smart phone. not sure whether honda uses OBD1 or OBD 2. I have OBD1 scanner with me.

does hero service centers have the finder pump or the OBD scanner? coz the yamaha service center didn't have both? they are dependent on a third party guy.

Will find out if they have or no. Am sure they won't. Btw, the fuel pipe could have been reached in the old zmr. In the new one, the body is covered, leaving gaps at the radiator alone. Anyways, will get the bike to the centre and explain this to him. Thank you!

Sent from my C5502 using xBhp Connect mobile app

**Divya Sharan** · 12-19-2014, 09:39 AM

Re: Hero Karizma ZMR (2014 version)

Reneav, RTR pads will eventually cause scoring on the rotors.

Sent from my phone. Kindly avoid it while riding.

**pravinan** · 12-19-2014, 10:55 AM

Re: Hero Karizma ZMR (2014 version)

Thanks is a big word. After all we belong to the same family, i have been asking doubts on issue and i got some fix from members that even SVC mechanics doesn't know. I hope the problem get's fixed soon.

I would suggest a check of the Throttle sensor also. it's located on the throttle body on the other side of the cable.

Have checked with Two svc's near my home. Both didn't have the pump or the scanner tool and they didn't know what is meant by OBD. i wanted to check whether tata motors has one coz I have a safari. the answer is yes. thank god at least the car SVC's have this things.

**rreneav1987** · 12-19-2014, 11:07 AM

Re: Hero Karizma ZMR (2014 version)

Originally posted by Divya Sharan View Post

Reneav, RTR pads will eventually cause scoring on the rotors.

Sent from my phone. Kindly avoid it while riding.

I didn't have the money to get it changed back then so I got the RTR Pads, waiting for them to wear out but they are not

I will be getting a general service done of my bike this weekend getting the left RVM changed.. some wiring issue right front indicator isn't working even after changing the bulb.. get a new air filter and see if I can get the FI cleaned.. am not planning for a long ride as of now so I guess this would be the best time for me to work with the FI.. I will use my car if needed...

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