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Honda Unicorn Dazzler

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  • vjxm
    replied
    Re: Honda Unicorn Dazzler

    Now again i am facing a low mileage issue,with little blackish spark plug.
    Clean the carb throughly. But no solution to my problem.

    Take some pics of Dazzler carb Jets
    I want to confirm, is these are stock jets or changed. As i am 2nd owner of this bike.

    I m thinking to try some lesser size of main jet about 100 -110.






    What can be reason for low mileage issue.

    Leave a comment:


  • plasmabhai
    replied
    Re: Honda Unicorn Dazzler

    Originally posted by rcprasanth View Post
    Last week, my bike broke down because the drive shaft went bald. A local mechanic did a temporary fix by screwing the front sprocket tightly with the shaft and the sound that we are talking about was gone. Now, I've given my bike to svc go to replace drive shaft and it may cost around 2000-3000. I highly recommend that you check your drive shaft because your bike might break down any time.

    Sent from my GT-I9300 using xBhp Connect mobile app
    Originally posted by rcprasanth View Post
    I changed the drive shaft and the noise is completely gone. It costed around 2000 bucks..
    Well damn..!! Just what I suspected. Will definitely get the drive shaft changed asap. Thanks for keeping me posted. Really appreciate it. If its not too much of a problem can you please take a pic of the service bill and post it here (or to me via a pm)?? This way it will be easy for me to explain to service center what is the part number of the spare which needs to be replaced.

    Originally posted by SparKot View Post

    I'm assuming afr-screw referred here is pilot-screw, if not ignore the rest of the post.

    1. I can't find what type of carburettor is used in Unicorn Dazzler. What's the name of the carburettor used in Dazzler?

    Dazzler has Keihin VM28 carburetor.

    2. Pilot-screw only plays major role in idling. Minor role in mileage as it only come in to play in first quarter(25% or 1/4) of throttle.

    Found a picture (courtesy: plasmabhai) :
    Thanks for crediting me for the pic. For what its worth - that screw pointed to in the picture is indeed the AF screw :P

    There seems to be a bit of confusion between screws and jets. The screw which vjxm has replaced is indeed the AF mix screw. It is NOT same as the pilot jet as you are assuming. There is nothing called as pilot "screw". Jets have a hole through them whereas screws do not have any hole in them.

    The AF screw plays a major role in stable idling, easy cold engine starts and crisp throttle response.

    Pilot Jet on the other hand plays a major role in mileage because in normal riding situations where you accelerate slowly and smoothly, the throttle opens only enough for the Pilot Jet to be active.

    However the transition from idling to throttle opening is governed by AF Screw. When the throttle is opened then there should be no lag in engine revs, this is what is referred to as a crisp response. And rise in revs should be smooth. Sometimes if AF screw is not adjusted properly then there can be a lag in the way revs rise. To compensate people turn the throttle more going into the needle jet range at low speeds leading to low mileage.

    May be that's why changing the AF screw led to a big gain in mileage for vjxm.

    Just to put it on record though - there is nothing wrong with the AF screw of dazzler. My AF screw is stock and idling, cold starts and throttle response is perfectly fine. I am running stock pilot jet, stock needle and a Karizma Main Jet on a 170cc big bore and currently I am getting a mileage of 47-48 kmpl consistently since last 1500 kms at least. So there is nothing wrong with the stock carb of dazzler as such.

    Leave a comment:


  • vjxm
    replied
    Re: Honda Unicorn Dazzler

    Dazzler have keihin carburetor.
    Attached Files

    Leave a comment:


  • rcprasanth
    replied
    Re: Honda Unicorn Dazzler

    Nope I do not have any pic neither did Honda return the part

    Sent from my GT-I9300 using xBhp Connect mobile app

    Leave a comment:


  • SparKot
    replied
    Re: Honda Unicorn Dazzler

    Originally posted by rcprasanth View Post
    Last week, my bike broke down because the drive shaft went bald. A local mechanic did a temporary fix by screwing the front sprocket tightly with the shaft and the sound that we are talking about was gone. Now, I've given my bike to svc go to replace drive shaft and it may cost around 2000-3000...
    Originally posted by rcprasanth View Post
    I changed the drive shaft and the noise is completely gone. It costed around 2000 bucks..
    Do you have a photo of bald drive-shaft? Honda returns replaced parts right?

    Originally posted by vjxm View Post
    I have retune carb of my dazzler many times.but not have fe more than 42 kmpl even in good driving. Spark plug always show some blackish carbon.then i change afr screw to some other bike .after that spark plug turns in to white(lean afr ratio).then after retune get the point where plug color turn into reddish.now having mileage of 48kmpl.
    I'm assuming afr-screw referred here is pilot-screw, if not ignore the rest of the post.

    1. I can't find what type of carburettor is used in Unicorn Dazzler. What's the name of the carburettor used in Dazzler?
    2. Pilot-screw only plays major role in idling. Minor role in mileage as it only come in to play in first quarter(25% or 1/4) of throttle.

    Found a picture (courtesy: plasmabhai) :


    Generalised Carb-Jets:
    Last edited by SparKot; 12-05-2014, 02:49 AM.

    Leave a comment:


  • rcprasanth
    replied
    Re: Honda Unicorn Dazzler

    I changed the drive shaft and the noise is completely gone. It costed around 2000 bucks..

    Leave a comment:


  • rcprasanth
    replied
    Re: Honda Unicorn Dazzler

    Originally posted by plasmabhai View Post
    I am facing this same trouble from last 4000 kms as well. I am at my wits end to what the problem is/could be.

    Let me describe the problem first - there is a chain grinding noise heard and felt when I close the throttle and the bike decelerates under engine braking. The same noise is also heard when I am releasing the clutch and engaging any gear. However there is no noise when the bike is under acceleration/constant speed in any gear. There is also no noise when I press in the clutch or the bike is in neutral and simply coasting down the road.

    Basically everything is ok with the chain - it is clean, lubed, chain slack is fine (not loose, not over tightened) and both sprockets are also fine. No play either in any of the sprockets. Chain and wheel are aligned properly. I am not changing chain-sprocket set because I know that will not solve the problem.

    My guess is that there is a bearing problem inside the carnk-case. Basically the shaft to which the front sprocket is attached - that bearing has gone bad.

    Till date every mechanic that sees it says - chain is dirty/dry therefore noise. But that's not the reason.

    Now a days I have changed my riding pattern to suit the bike, basically the moment I let go of the throttle I clutch in and brake using front+rear brakes. I dont use engine brakes. Also at times I do clutchless upshifts so I dont have to engage/release clutch. And whenever I use the clutch I release it quickly to prevent the grinding. I never half clutch the bike.

    Basically I am living with this for the time being.

    But as soon as I find a solution I will let you know by posting here or by PM'ing you. If you find a solution let me know as well. Thanks.
    Last week, my bike broke down because the drive shaft went bald. A local mechanic did a temporary fix by screwing the front sprocket tightly with the shaft and the sound that we are talking about was gone. Now, I've given my bike to svc go to replace drive shaft and it may cost around 2000-3000. I highly recommend that you check your drive shaft because your bike might break down any time.

    Sent from my GT-I9300 using xBhp Connect mobile app

    Leave a comment:


  • vjxm
    replied
    Re: Honda Unicorn Dazzler

    I have retune carb of my dazzler many times.but not have fe more than 42 kmpl even in good driving. Spark plug always show some blackish carbon.then i change afr screw to some other bike .after that spark plug turns in to white(lean afr ratio).then after retune get the point where plug color turn into reddish.now having mileage of 48kmpl.

    Old afr screw



    New one from unknown bike

    Leave a comment:


  • Balgi
    replied
    Re: Honda Unicorn Dazzler

    Originally posted by BhanuPrakash View Post
    Hey guys, my honda dazzler has clocked 31000Kms so far and it is 3 and half years old now.

    I finally found an amazing service center for my bike. I got to know about it from XBHP itself.
    It isnt much expensive as well. I had to pay 1100 INR. (Front disc pad cost is included
    Its "Top Gear Honda World" and the owner name is Harsha. The service center is located near Garadi Apartments (Yediyur lake), Bangalore. Ph: +(91)-80-26766178
    Most of the bikes that come for servicing here are 1000CC bikes .

    I was running on the stock battery till last week :P
    I changed it to Exide VRLA xpack. It cost me 1400 INR.

    Now I have to change the tyres on my bike.
    I have been searching for the stock size but I am not able to get it. Even after one week search I haven't found any who has the stock size.
    I am worried about upsizing or downsizing. Is it true that if you downsize there will be air leak problem?

    Any suggestions guys?

    Ceat has the Milaze series. Its a good grippy tyre and stock size is available. It is soft compound when compared with MRF of the same size and it corners well.

    Leave a comment:


  • jeemcruz
    replied
    Re: Honda Unicorn Dazzler

    Hi guy I m join the community, I have honda dazzler(2012) feel happy with bike n heard from good review about dazzler in this community so it's helpful thanks to all who stick with dazzler n post good tips..... Thanks

    Leave a comment:


  • BhanuPrakash
    replied
    Re: Honda Unicorn Dazzler

    Hey guys, my honda dazzler has clocked 31000Kms so far and it is 3 and half years old now.

    I finally found an amazing service center for my bike. I got to know about it from XBHP itself.
    It isnt much expensive as well. I had to pay 1100 INR. (Front disc pad cost is included
    Its "Top Gear Honda World" and the owner name is Harsha. The service center is located near Garadi Apartments (Yediyur lake), Bangalore. Ph: +(91)-80-26766178
    Most of the bikes that come for servicing here are 1000CC bikes .

    I was running on the stock battery till last week :P
    I changed it to Exide VRLA xpack. It cost me 1400 INR.

    Now I have to change the tyres on my bike.
    I have been searching for the stock size but I am not able to get it. Even after one week search I haven't found any who has the stock size.
    I am worried about upsizing or downsizing. Is it true that if you downsize there will be air leak problem?

    Any suggestions guys?

    Leave a comment:


  • torque3883
    replied
    Re: Honda Unicorn Dazzler

    Originally posted by amitmalve View Post
    Finally much needed rear-sets mod for Dazzler -

    [ATTACH=CONFIG]133045[/ATTACH] [ATTACH=CONFIG]133046[/ATTACH]

    I guess Honda should have launched it in this way.
    Hey bro, any updates after this post ?? i am not be able to find out part list and procedure you followed to fix hunk Footrest in this ownership thread. i have ordered one set at hero svc. waiting for it to arrive.

    Thanks a lot for sharing this mod
    ~AT~

    Leave a comment:


  • manas34
    replied
    Re: Honda Unicorn Dazzler

    [MENTION=41138]rcprasanth[/MENTION] you have to check the local market for it price differ as location changes


    Did anyone got a hand on petrol lock for dazzler? Where did you get that?

    Leave a comment:


  • mechanic
    replied
    Re: Honda Unicorn Dazzler

    Ravi@17bhp need you valuable advice on changing dazzler headlight with fz is it possible to do that

    Sent from my E310 using Tapatalk 2

    Leave a comment:


  • rcprasanth
    replied
    Re: Honda Unicorn Dazzler

    40K+ on ODO. I am planning to sell my dazzler considering maintenance costs and the fact that the production of the bike has stopped. What do you think will be the estimated selling price??

    Leave a comment:

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