Announcement

**BlackPanther** · 12-30-2014, 06:57 PM

Re: Honda Unicorn

I have completed 42.5K Kms with My Unicorn which will complete 5 years in next 3 months.

Recently had sounds from engine and replaced Rack-Ram Adjuster (sorry if I spell it wrong) along with timing-chain Adjuster.

Had been replacing a lot of parts for last 10000 kms (I feel like I am spending a lot on Maintenance

. Even My family gave a green signal to get a new bike seeing me in my parking most of the weekends).

Major changes:

At 31,000 had to change the timing change and timing-chain adjuster

Entire Chain Sprocket set.

Fork Cone set replacement

At 38,000 did a re-bore and changed Valves and valve guidance.

Also rusting has been a concern after 4 years. used a Matt Black Spray (Rs 150) to spray the bottom side of the Petrol tank and visible places on the Frame.

All my friends who own a Unicorn has the same issue (oil getting burned/Engine head issues) after the bike crossed 35000 kms.

Is it Normal in the Bike which you guys own ?

Mileage has been very good with consistent 55KMPL

**sinnerz2000** · 01-01-2015, 10:59 PM

Re: Honda Unicorn

Originally posted by BlackPanther View Post

I have completed 42.5K Kms with My Unicorn which will complete 5 years in next 3 months.

Recently had sounds from engine and replaced Rack-Ram Adjuster (sorry if I spell it wrong) along with timing-chain Adjuster.

Had been replacing a lot of parts for last 10000 kms (I feel like I am spending a lot on Maintenance

. Even My family gave a green signal to get a new bike seeing me in my parking most of the weekends).

Major changes:

At 31,000 had to change the timing change and timing-chain adjuster

Entire Chain Sprocket set.

Fork Cone set replacement

At 38,000 did a re-bore and changed Valves and valve guidance.

Also rusting has been a concern after 4 years. used a Matt Black Spray (Rs 150) to spray the bottom side of the Petrol tank and visible places on the Frame.

All my friends who own a Unicorn has the same issue (oil getting burned/Engine head issues) after the bike crossed 35000 kms.

Is it Normal in the Bike which you guys own ?

Mileage has been very good with consistent 55KMPL

I did a rebore at 48k km, replacing the entire clutch assembly, rocker arms, timing chain kit and spent about 10k only in parts. Even after all this my bike has become rough after 2k km and have hard gear shifts *sigh*

**raja1982** · 01-02-2015, 04:26 PM

Re: Honda Unicorn

Does it mean that, we should keep our bikes for just 40k kms and then sell it.

It looks like, whatever money you spend on it after that, just goes down the drain.

It makes sense to buy a new bike, which does not require any maintenance for at least two years apart from regular servicing. Also a maintenance of rupees 15-20k spent, every year on keeping a 40k kms spent bike doesnt make sense, which you can pay that amount as EMI for a new bike.

If anyone can contradict this theory, i would be happy to hear that

**dude_creative** · 01-02-2015, 04:58 PM

Re: Honda Unicorn

Did you guys do the valve clearance check regularly. That is where all the problems start. Tight valve clearance can damage the engine soon and service centers rarely do it

**sinnerz2000** · 01-03-2015, 06:30 AM

Re: Honda Unicorn

Originally posted by dude_creative View Post

Did you guys do the valve clearance check regularly. That is where all the problems start. Tight valve clearance can damage the engine soon and service centers rarely do it

My mech set it without the gauge even after I told him to use it, he said he knows what he's doing. I think I'll try to have the SVC do it next time, but only while I'm there.

**dude_creative** · 01-04-2015, 11:15 AM

Re: Honda Unicorn

Originally posted by sinnerz2000 View Post

My mech set it without the gauge even after I told him to use it, he said he knows what he's doing. I think I'll try to have the SVC do it next time, but only while I'm there.

Feeler gauge is very important to set clearance. Tight valve clearances are dangerous & spoil the valves and the smooth ride you got once. You may visit the dream yuga thread for valve clearance procedure, it may slightly vary for unicorn.

**raja1982** · 01-16-2015, 03:38 PM

Re: Honda Unicorn

Hi,

I am facing a new problem with my unicorn since last week. I changed my engine oil to AX7 shell in a Shell petrol bunk. From that moment i got out of the petrol bunk, i noticed harshness in engine sound, and the ride is not smooth. Once i turned the accelerator even slightly, it started to give more noise. When i took it to the service centre, they said it is tappet noise and adjusted it, even after that, the same noise was coming. Having frustrated with it, i asked them to do a full service, again changing with Honda oil, this time, assuming the problem will get resolved. But even after i got it after service, the same problem is there. When i checked with the Honda service person, he said, the engine head should be opened, and checked and it would cost some 2k. I am not sure, what has to be done. Please help me with this. Before getting the engine oil filled in the petrol bunk, the bike was smooth and no engine noise was coming.

**asn39** · 01-22-2015, 05:01 PM

Re: Honda Unicorn

Originally posted by raja1982 View Post

Hi,

I am facing a new problem .......................Before getting the engine oil filled in the petrol bunk, the bike was smooth and no engine noise was coming.

I am sorry to hear that but frankly SHELL AX7 is a good engine oil i filled up 1000 km back and in starting i could not feel difference but when i pushed acceleration after 5000 rpm engine was still feeling good which did not happen before while i used VEEDOL OIL if you want to verify just go through my previous posts you will know besides any oil can not harm engine so far i have read on XBHP
About your problem one can not understand your problem unless one sees your bike or hears the sound (try uploading small video to youtube)
if possible avoid opening engine

**dude_creative** · 01-23-2015, 12:36 PM

Re: Honda Unicorn

Originally posted by raja1982 View Post

Hi,

I am facing a new problem with my unicorn since last week. I changed my engine oil to AX7 shell in a Shell petrol bunk. From that moment i got out of the petrol bunk, i noticed harshness in engine sound, and the ride is not smooth. Once i turned the accelerator even slightly, it started to give more noise. When i took it to the service centre, they said it is tappet noise and adjusted it, even after that, the same noise was coming. Having frustrated with it, i asked them to do a full service, again changing with Honda oil, this time, assuming the problem will get resolved. But even after i got it after service, the same problem is there. When i checked with the Honda service person, he said, the engine head should be opened, and checked and it would cost some 2k. I am not sure, what has to be done. Please help me with this. Before getting the engine oil filled in the petrol bunk, the bike was smooth and no engine noise was coming.

Does your Unicorn manual recommend 20w40 or the newer thin 10w30 oil ? I heard old Unicorns prefer 20w40.
Also clean your oil strainer and centrifugal oil filter to see if that is the problem.

**asn39** · 02-02-2015, 07:40 PM

Re: Honda Unicorn

i thought new unicorns come with VISCOUS AIR FILTER but i was surprised to see that my unicorn 2013 had yellowish AIR FILTER which i were used in older ones

anybody who had purchased in that year please share whats your case ?

**s1d** · 02-02-2015, 11:15 PM

Re: Honda Unicorn

Originally posted by asn39 View Post

i thought new unicorns come with VISCOUS AIR FILTER but i was surprised to see that my unicorn 2013 had yellowish AIR FILTER which i were used in older ones

anybody who had purchased in that year please share whats your case ?

2013 model uses a viscous air filter - normally green in color.
you can also use the normal yellow filter and shouldn't cause any issues.

Why you ended up with a normal yellow paper filter, could be due someone swapped it during service or replacement etc..

**asn39** · 02-02-2015, 11:56 PM

Re: Honda Unicorn

i see that might be because of new AUTHORISED SERVICE CENTRE I USED

on servicing day i got a call from centre that OIL and Filter needs to be replaced but the question was OIL WAS CHANGED 800 KMS BACK AND I HAVE RUN JUST 6500kms in total so there was no chance of oil or filter being spoiled

Though i crossed check with outside mechanic and guess what he said FILTER CAN 700kms and OIL can go beyond 1000 kms

anywhere i can complaint ?

**s1d** · 02-03-2015, 12:11 AM

Re: Honda Unicorn

Originally posted by asn39 View Post

anywhere i can complaint ?

yes, to honda via email or their website.
Honda

that is why it always a good habit to hang around while the bike is getting serviced.
yes engine oil will normally be good for around 2000-2500km and the viscous filter as per Honda i think should be replaced only every 10-12k km (not sure of this number though)
there is no 'cleaning' of this filter..its just replace, while the dry yellow colored filter can be cleaned using compressed air.
I'd prefer using the dry yellow paper filter and clean it every 2-3k km and replace it every 12k km.

**asn39** · 02-05-2015, 06:21 PM

Re: Honda Unicorn

Complaining to honda worked

Today i was called up by the service centre and the head of the service centre apologized for that got everything checked

He said if any issues come in future you can directly come to me ill be here in office

Gave a reasonable assurance
lets see if they really meant it

**s1d** · 02-05-2015, 11:08 PM

Re: Honda Unicorn

Originally posted by asn39 View Post

Complaining to honda worked

Today i was called up by the service centre and the head of the service centre apologized for that got everything checked

He said if any issues come in future you can directly come to me ill be here in office

Gave a reasonable assurance
lets see if they really meant it

maintain a friendly relation with the asc.. just dont be rude but be friendly, polite and firm.. you can get your issues addressed and fixed easier that way.

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