Re: Honda Dio, Activa and Aviator

Thanks.

I would add 20 ml 2T oil in full tank for lubrication during run-in.

Original Valve Seals ₹75.00

Gasket Sealant ₹20.00

Usha 0.25 size rings for Activa 110 ₹300.00
(I had had a look while being installed on another Activa in one open Standard size set in ASC, it was having Usha Rings inside Honda packing,)

I had tried Standard size rings first, but they were having bigger gap, so I had to plonk in a 0.25 size one.

Which exact NGK plugs you had received from Sibun ?

Could you share the NGK part/ model number, please ?

regards

Re: Honda Dio, Activa and Aviator

What about fuel additives, System G or Adon P, in Activa ?

Re: Honda Dio, Activa and Aviator

thanks for the update on parts.
ngk plug for the older 102cc activa/dio is cr6hsa.. which is what i own.
you can get the part no. for ngk plugs from here for various bikes in india https://www.ngkntk.in/partfinder/
these days plugs are easily available on amazon.. in some places local parts dealers might not stock ngk, many i see tend to go with bosch for plugs.
looks like ngk is the oem plug for these honda scoots since the past cpl of yrs, they have a new model of plug mr7c-9n


i use system g/adon p now n then on my dio (i regularly use it on my duke) and i don't feel a difference per se while riding. mine (2007 model) has now clocked over 75k on stock engine without any issues.. never used additives in the first few yrs and never had any problems either, only been using system g/adon p say once in 3 months for a tankful the past 4yrs just because i have it lying around . what is more important is that the scoot gets serviced regularly at 2500-3000km intervals with oil changes. i can safely say system g/adon p will not cause any harm per se.. you can give it a try and see.. but 2t premix will be a better top end lube and make sure you use very less as i mentioned.

on another note, my mechanic sometimes (Say once every 3 services/2 yrs) squirts a few drops of oil thru the rubber pipe near the engine with the engine running and revs it up a bit.. will see smoke for a few seconds till the oil burns away and according to him frees up the piston rings (i did notice a wee bit improvement in peppiness). but i have since avoided this for fear of having excessive carbon deposits built up. 2t oil mix in fuel is better since it burns much cleaner.

Re: Honda Dio, Activa and Aviator

Please advise the role played by the hole, being indicated by orange arrow in this picture.

Re: Honda Dio, Activa and Aviator

It will supply the engine oil from the pump to cylinder head (for valve, camshaft and cam chain lubrication).

Re: Honda Dio, Activa and Aviator

I have activa 3g 2015. I have bought a set of MRF tyres for my activa. But the shop owner suggested me to install 90/100-10 on both front and rear. But when i searched on the internet the front size is 90/90-12. How will it effect my ride and in worse conditions will there be majour changes in handling? Should i continue with the install on 100/10 on both?

Re: Honda Dio, Activa and Aviator

the 3g activa uses a 10 inch rim, not sure where you got the info on a 90/90-12 (12 stands for rim size).
90/100-10 is the correct size and should be fine on the activa/dio.

It is the aviator and activa 125 iirc use the 90/90-12 size at the front.

Re: Honda Dio, Activa and Aviator

What is the interval of changing of a Activa's Disc brake's Rotor or the metal plate? Has anyone changed it during the life of the scooter? If yes can you please give me the ballpark cost along with how much had the scooter run before changing the Disc Brake's Rotor. I am looking for approximate values and not exact ones.

Re: Honda Dio, Activa and Aviator

1. There is no interval for changing brake discs.
2. One changes them if they are warped/bent or the minimum thickness falls below the limit mentioned on the disc itself (use a micrometer to measure).
3. The cost of Maestro 125 Fi's disc is 1065/- INR according to their catalogue. Honda being Honda, don't be surprised if it costs 1200-1400.
4. Since swapping of disc rotors is possible between Karizma and Hornet 160R (276 mm front and 220 mm rear); there is a possibility of swapping Maestro's 190 mm disc with Aviator's/Activa 125's 190 mm disc.
5. Both Hero and Honda source their discs from Yutaka (Jap Company).
6. When you replace the disc, make sure you replace all four bolts that hold it and add a semi-permanent thread locker to the bolts. The old bolts should not be re-used as they will be permanently "stretched" and will loosen often.

Re: Honda Dio, Activa and Aviator

Thanks for the info. It is very hepful.

I have one more question, on an average when should we expect the Disc rotor or Disc plate to wear out, such that it requires replacement? Is it after 25000 kms or 4 years?

And a question to the wider audience, have you ever changed the Disc Brakes rotors, i.e. the metal Plate, on your Honda Vehicles? If yes what was the Odometer reading and what was the cause of the change of the Disc Brake rotor? I am not looking at the brake pads rather at the Disc Rotor or the Disc Metal Plate with the holes.

Re: Honda Dio, Activa and Aviator

I will let others answer you but 25000 kms or 4 years appears a little early for me for normal use.

Also, in general a bike/scooter used in the city will require frequent replacements than a same model used for touring.

IIRC, Divya Sharan (tourer & moderator) replaced his ZMR's disc at a lakh kms while some riding their CBS Hornet 160R are complaining of early worn out discs at 25-30k kms.

Can you post a picture of the disc if possible? - just to see how worn it looks.

Re: Honda Dio, Activa and Aviator

on a scooter the rotor would pretty much last a very long time unless physically damaged like in an accident or used incorrectly (like riding with the brake lever pressed) which might cause over heating and eventually warping.
25k km/4yrs is too early imo under normal use.. i'd say at least twice that should be possible.

just curious, why do you ask ? any issues with the braking ?

Re: Honda Dio, Activa and Aviator

My scooter has run 12000 kms and the Honda service engineer has suggested a change. And he has said the thickness of the Disc Rotor has decreased and there are lines on the Disc rotor. When I asked him and his supervisor on what is the frequency of such a change they did not have any answer. There was an issue with the braking in which the front brake had become hard.

Basically I a very disappointed with Honda, its product and its service center. This scooter cost me more to maintain than my 4-wheeler over the past 12 months. Sometimes I get a sense that it was a mistake to have bought this scooter.

Re: Honda Dio, Activa and Aviator

Even with a 70/30 front to rear brake usage, the plates will last the life of the bike or a decade easily. Lines on the plate are normal. If the brake is extensively used with worn-out pads, that may cause a deeper etching mark and may lose some effectiveness. There are disc brakes everywhere nowadays, compare it visually yourself. Bleed the brake fluid once a year, change pads as per usage, yourself if you can. That's all the focus it usually needs. The techs will make their stories, if you don't feel confident of their explanation, they are faking it till they make it.

Re: Honda Dio, Activa and Aviator

scooter tyres has more rotations than bike's tyre due to small size {12" compared with 17",18" & even 19"} .
which in turn makes more wear & tear of corresponding parts . so i think 25k km for a rotor is enough life . I have seen yamaha ray zr rotor change as early as 10k km .