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[Help]: Problem with my Karizma

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  • Race_Developed
    replied
    Originally posted by vineeth areth View Post
    HI dude, if you are running with a local airscrew ,change it to a genuine one Before going for any DIY work,
    check your carb insulator for any damage,I think this itself will solve your problem to some great extent
    Since you have a great evident of decreased top speed, i think there is nothing to worry about like me...
    My bike Doesn't have any problem with Top speed and daily am doing 120 ease and 140 maxx

    PLZ KEEP UPDATING YOUR FINDINGS
    The bike has been runing on the local air-screw for a while now and is currently not available with any of dealers here in Delhi NCR region . I will try and check for cracks on the manifold rubber firstly befor i open the carb.
    Also, when i start the bike in mornings i need the choke (since its really cold up here i Delhi) and after a while the rpm increaces like mad upto 5~6 K and stays to that point .This should not happen, or is this normal. The service engineers at HH are not doing anything about this and am not finding any good mechanics here to reslove this.

    OT: A very interesting find on www.team-bhp.com.
    My Karizma Mods & Ideas! - Team-BHP

    Leave a comment:

  • vineeth aredath
    replied
    Originally posted by James View Post
    Did somopne play around with the carb or the surrounding plumbing? This is an airleak! and not due to the airfilter! how much mileage have you been getting? have you checked the choke plunger in the carb?
    if you take out the side panels, you will notice that there are some black tubes that go into the left side of the carb. this tube goes and connects to more tubes with the help of a plastic T joint. One of those tubes also goes and connects to the intake manifold.
    The problem is that either one of these tubes has got a crack and is letting in excess air or the brass joint at the intake manifold has loosened up and is letting in air.
    Ive experienced this problem on both my zma's and had to figure out and fix them myself.


    Cheers!
    thank you james brother for your valuable information, Even few mech pointed on the same, but there is no visible proof of air leakage. Even i thought of changing the chock cable and insulator but the unavailability of parts stop me, Tomorrow am riding to Bangalore and AFAIK Parts are available at there, i will change them and check the difference..

    Leave a comment:

  • James
    replied
    Did somopne play around with the carb or the surrounding plumbing? This is an airleak! and not due to the airfilter! how much mileage have you been getting? have you checked the choke plunger in the carb?
    if you take out the side panels, you will notice that there are some black tubes that go into the left side of the carb. this tube goes and connects to more tubes with the help of a plastic T joint. One of those tubes also goes and connects to the intake manifold.
    The problem is that either one of these tubes has got a crack and is letting in excess air or the brass joint at the intake manifold has loosened up and is letting in air.
    Ive experienced this problem on both my zma's and had to figure out and fix them myself.

    Cheers!

    Leave a comment:

  • vineeth aredath
    replied
    Originally posted by Race_Developed View Post
    Dudes...same problem here.
    I have the exact same trouble and it all started when my air mixture screw was stolen. Its now replaced but dut to unavailability of parts at HH i had to go in for a local one and i dont think its doing any good.

    The bike is not going above 100 and takes a while for the rpm to drop.The rpm if adjusted below 1500 kills the engine,so am forced to maintain a higher idel rpm.
    Its got to be the carb or the manifolds thats at fault.I am planing to do a DIY thingy on the carb someday.Will update you if i could find out something.

    I have written a million times to HH but no reply or action taken.
    HI dude, if you are running with a local airscrew ,change it to a genuine one Before going for any DIY work,
    check your carb insulator for any damage,I think this itself will solve your problem to some great extent
    Since you have a great evident of decreased top speed, i think there is nothing to worry about like me...
    My bike Doesn't have any problem with Top speed and daily am doing 120 ease and 140 maxx

    PLZ KEEP UPDATING YOUR FINDINGS

    Leave a comment:

  • vineeth aredath
    replied
    Originally posted by Coplay@180 View Post
    Hi Vineeth.
    Looks like I have a similar problem.
    Can you tell me about this Mechanic u visited? I would like to see him as well.
    And I dont understand what TPS means.



    I could offer to SWAP the parts for testing purposes. That way even I can find out what's wrong in my bike.
    hi bro, sad to know that, anyway there will be some solutions and am looking really forward

    The mechanic i met was a HH SVC guy who had some 18 years experience in HH SVC, seems like he had seen such kind of problems in karizma
    But the SVC which i visited was in THALIPARAMBA(Place situated in Kannur) it was a very small SVC and there was no sophisticated equipments for further investigations

    If you are sure that the problem is same then coming here will be a waste of time Because These SVC have nothing to solve this

    Sunday am leaving to Bangalore and hope i can find out some good mech out there

    Anyway i will post all updates here, plz share yours too

    Where are you from?

    TPS- Throttle Position Sensor AFAIK TPS connects CDI to carb

    Leave a comment:

  • Race_Developed
    replied
    Dudes...same problem here.
    I have the exact same trouble and it all started when my air mixture screw was stolen. Its now replaced but dut to unavailability of parts at HH i had to go in for a local one and i dont think its doing any good.

    The bike is not going above 100 and takes a while for the rpm to drop.The rpm if adjusted below 1500 kills the engine,so am forced to maintain a higher idel rpm.
    Its got to be the carb or the manifolds thats at fault.I am planing to do a DIY thingy on the carb someday.Will update you if i could find out something.

    I have written a million times to HH but no reply or action taken.

    Leave a comment:

  • Coplay@180
    replied
    Originally posted by vineeth areth View Post
    2 days back i met one mechanic and did a complete assessment of bike, we cleaned the carb, did all checkups and even checked timing chain. After all these he just came in to the conclusion that there is some change in tps values since he was not having any instruments(i don't know the name) he couldn't reset the TPS value but he strongly recommended me to check and reset TPS value, he told that there is no such problem with the diaphragm an air screw and 99% he was sure that the problem is with TPS values,

    He explained that Bike produces a lot of backfire and that's the reason for sudden stop of engine at lower RPM.

    From past one year am listening to these kind of different comments from mechanics and now really don't know weather his findings are correct or not so i need you guys to shed some light on this
    Please help
    Hi Vineeth.
    Looks like I have a similar problem.
    Can you tell me about this Mechanic u visited? I would like to see him as well.
    And I dont understand what TPS means.

    Originally posted by vineeth areth View Post
    thank you Brother i am waiting for my friend to come down with his bike so that can check with his carb....
    I could offer to SWAP the parts for testing purposes. That way even I can find out what's wrong in my bike.

    Leave a comment:

  • iamvik
    replied
    Originally posted by vineeth areth View Post
    thank you Brother i am waiting for my friend to come down with his bike so that can check with his carb....

    What may be the reason for back fire?
    Back firing could be because of various factors of which ignition is one. So it's difficult to say what the cause could be in your bike.

    Leave a comment:

  • vineeth aredath
    replied
    Originally posted by iamvik View Post
    AFAIK, the TPS doesn't store any settings and therefore there's nothing to reset. Either it works or it doesn't. If it doesn't, it has to be replaced.

    To test his theory, see if you could borrow a friend's Karizma TPS and fit it on yours. If that works, then you'll have the solution.

    Another way to check would be to use an ignition timing light and check whether the ignition advance is working correctly. For this, the mechanic must have the right tools and knowledge. Visit a good mechanic or write to HH complaining about the problem so that they help.
    thank you Brother i am waiting for my friend to come down with his bike so that can check with his carb....

    What may be the reason for back fire?
    Last edited by vineeth aredath; 02-18-2010, 04:04 PM.

    Leave a comment:

  • iamvik
    replied
    Originally posted by vineeth areth View Post
    2 days back i met one mechanic and did a complete assessment of bike, we cleaned the carb, did all checkups and even checked timing chain. After all these he just came in to the conclusion that there is some change in tps values since he was not having any instruments(i don't know the name) he couldn't reset the TPS value but he strongly recommended me to check and reset TPS value, he told that there is no such problem with the diaphragm an air screw and 99% he was sure that the problem is with TPS values,

    He explained that Bike produces a lot of backfire and that's the reason for sudden stop of engine at lower RPM.

    From past one year am listening to these kind of different comments from mechanics and now really don't know weather his findings are correct or not so i need you guys to shed some light on this
    Please help
    AFAIK, the TPS doesn't store any settings and therefore there's nothing to reset. Either it works or it doesn't. If it doesn't, it has to be replaced.

    To test his theory, see if you could borrow a friend's Karizma TPS and fit it on yours. If that works, then you'll have the solution.

    Another way to check would be to use an ignition timing light and check whether the ignition advance is working correctly. For this, the mechanic must have the right tools and knowledge. Visit a good mechanic or write to HH complaining about the problem so that they help.

    Leave a comment:

  • vineeth aredath
    replied
    2 days back i met one mechanic and did a complete assessment of bike, we cleaned the carb, did all checkups and even checked timing chain. After all these he just came in to the conclusion that there is some change in tps values since he was not having any instruments(i don't know the name) he couldn't reset the TPS value but he strongly recommended me to check and reset TPS value, he told that there is no such problem with the diaphragm an air screw and 99% he was sure that the problem is with TPS values,

    He explained that Bike produces a lot of backfire and that's the reason for sudden stop of engine at lower RPM.

    From past one year am listening to these kind of different comments from mechanics and now really don't know weather his findings are correct or not so i need you guys to shed some light on this
    Please help
    Last edited by vineeth aredath; 02-18-2010, 01:25 PM.

    Leave a comment:

  • vineeth aredath
    replied
    Originally posted by iamvik View Post
    If you can do some DIY repairs, try to remove the rubber manifold and check for cracks inside and outside. Squeeze the manifold a bit if required. When you replace it, tighten the clamps properly. If you can do this much on your own, you should be able to replace the manifold with a new one, making sure it's a genuine HH part.

    Sorry, I mistook your location to be TVM. You should post a msg on the Kerala thread or karizma thread and ask for recommendations on mechanics near to you. As for Blr, I recently returned to Blr after a few years away so I don't know any good mechs here. You could also ask this on the karizma thread.

    good luck!
    thanx brother for your valuable replays, i will surely check the pipe, i hope the problem is with pipe and if so i wil surely do arrangement to change it once again thanking you a lot........

    Leave a comment:

  • iamvik
    replied
    Originally posted by vineeth areth View Post
    thank you for the information brother
    Riding all the way to TVM is a bit difficult for me But i will be very happy if you point out some trusted mech in Bangalore. since i know the place and at any time i can come down to ban......thank you in advance
    If you can do some DIY repairs, try to remove the rubber manifold and check for cracks inside and outside. Squeeze the manifold a bit if required. When you replace it, tighten the clamps properly. If you can do this much on your own, you should be able to replace the manifold with a new one, making sure it's a genuine HH part.

    Sorry, I mistook your location to be TVM. You should post a msg on the Kerala thread or karizma thread and ask for recommendations on mechanics near to you. As for Blr, I recently returned to Blr after a few years away so I don't know any good mechs here. You could also ask this on the karizma thread.

    good luck!

    Leave a comment:

  • vineeth aredath
    replied
    Originally posted by iamvik View Post
    The mechanics are contradicting themselves. If they can't check the integrity of the diaphragm then how can they say that there's no problem? Also the diaphragm can most certainly be replaced. It is a rubber component and is not designed to last indefinitely. I think the service station is just trying to fob you off since investigating a carburettor problem takes time and effort.

    I suggest you enquire on xbhp about good, reliable independent mechanics in TVM and go visit one of them. In my experience, most dealer mechanics are good enough only to follow the instructions in the service manual and nothing more.

    The problems you have described do not seem to be caused by the air screw. The air screw only controls the mixture at idle and at close to idle speeds.

    thank you for the information brother
    Riding all the way to TVM is a bit difficult for me But i will be very happy if you point out some trusted mech in Bangalore. since i know the place and at any time i can come down to ban......thank you in advance

    Leave a comment:

  • iamvik
    replied
    Have you had the rubber inlet manifold checked for leaks? It is the rubber tube connecting the cylinder head to the the carburettor. If it is leaking, air will be sucked in through the cracks. This could very well be the cause of all your problems. If in doubt, just change it and let us know the results.

    Leave a comment:

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