Re: Honda Activa cold start problem

There could be various reasons for a bike/scoot not to start ( Esp Cold starts)
You are the right judge to analyse the situation.

1) BATTERY: As you have installed a new battery , it is ruled out.
2) Not Sure if Clutch got a good role while starting?
3) CHOKE lever: Is your choke cable working normal?
4) Is this scoot miss firing?

Try these areas...
1) Spark Plug : Try removing spark plug and check its condition, clean it if required and find for adequate electrode gap, if not adjust it and look for consistent spark.
2) Air filter : Inspect, replace if heavily clogged.
3) Carb Setting : Set it to Ideal AIR FLOW mixture ratio and set the IDLE screw at a little higher RPM.( to avoid stopping at traffic signals)
4) Loose Connections: inspect for any loose contacts , esp ignition side.

Worse case would be , valve Timing/seating would have gone for a toss. ( can rule this out as your's is very less ridden.)

Re: Honda Activa cold start problem

- Clean Spark Plug
- Clean Air filter
- Clean Carb (mechanic needed)
- Get your Air fuel ratio adjusted to an optimal mixture
- Get your tappets checked and clearances aligned (i advice you to find a knowledgeable & trustworthy mechanic)
If you are comfortable operating on your mechanicals of your vehicle, you should do it yourself (apart from tappets adjustment)

Re: Honda Dio, Activa and Aviator

That would be the old age "trailing link or trailing arm" suspension,they sort of faded away with the development of telescopic suspension mostly because telescopic system is much better at absorbing the shocks,but trailing link has its own advantages like,it avoids nose-dives while breaking especially on two wheeler s,which in turn enhances stability while breaking and cornering and it is cheaper to maintain
btw,it is one of the reason as to why the dio is so much fun to ride,it gives that anti-diving feature

You can get more info about the suspension on wikipedia

Re: Honda Dio, Activa and Aviator

Thank you for the reply.
I find the suspension very stiff and it gives no response while riding in bad patch.
Telescopic would have been better i guess.

Re: Honda Activa cold start problem

Thanks for the suggestions,I just bought new set of air filters and spark plugs. I'll definitely try these and update by this weekend

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Thanks for the suggestions,I just bought new set of air filters and spark plugs. I'll definitely try these and update by this weekend

Re: Honda Dio, Activa and Aviator

I guess honda used it to keep the cost down and they will keep using it until their sale figures fall
Do check the front tire pressure,sometimes the local mechanic shops over inflate the tires,the recommended pressure will be mentioned on the scoot itself or in the owners manual,stick to it

Re: Honda Dio, Activa and Aviator

anyone here rode aviator & activa back to back? the showrooms aren't giving aviator for TD, is it ok for a footer like me?
how much mileage can I expect out of the aviator? also, saw the activa 125, it's more or less same like aviator except shorter seat height, how's the suspension? I found activa to be a bit too hard..

also, how are the headlights?? are they bright enough to light up the street?? I've seen activas and unicorns have the most pathetic headlight setup, the light beams somewhere upwards in the air.. only blindens the opposite rider... doesn't actually lightup where required..

Re: Honda Dio, Activa and Aviator

Activa 125 suspension is very stiff or hard. It keeps the scooter manners on roads but the drawback is that all the potholes and all the bad roads will be transmitted to your back and to your body. This scooter, i.e. Activa 125, given its price tag deserves to have a very good mono shock absorber. But it appears that Honda two wheelers will now compromise on its margins. With Activa the TINA factor comes into play. Would definitely not recommend Activa 125 for a more plush or for a more comfortable ride. There are other scooters that you can look at for that.
Cannot comment on Aviator. When I had gone for TD they had offered me both Activa 125 as well as Aviator. I had even driven Yamaha scooters for TD. Have a look at them.


Low beam on Activa 125 is sufficient, not great but has a big wide throw. Does not light up sufficiently and is barely adequate. High beam is focused but it goes somewhere upwards in the air. It does blindens the opposite rider. Cannot comment about Aviator though. Have not driven it.

Re: Honda Dio, Activa and Aviator

Bummer. Almost all Honda 2 wheelers have terrible headlight. My unicorn was no exception. Doesn’t light up the road, blinders the opposite people.

Re: Honda Dio, Activa and Aviator

Hi guys , thank you for all the inputs regarding my Honda Activa cold start problem.
I followed the service instructions like:
1. Carburetor cleaning - complete cleaning not just bowl.
2. Got new set of primary viscous type air filters from authorized svc (cost 250 rs) and cleaned secondary air filters.
3. New spark plugs from svc.
4.Changed gear oil ( never knew it needs to be changed, it was completely black and have completely lost it's viscosity).
5.Clutch overall servicing .
6. Front suspension bush canged- it was making some squeaky noise.
7. Main problem was with secondary air filter - it's air inlet was completely blocked. Some crazy insect has made it into it's house. It had filled the inlet hole with some white color insect secreted material.
According to svc it was making my mixture lean due vaccume created because of the absence of secondary air.
8. 2 months back I had installed new amron batteries.
9. Changed rear brake shoes.

Now my old 2008 model is roaring again. Got started with just the click of a button in the morning. Easily doing 0 to 60.
Some minor vibration still present near handle and headlights are not focussed ,Light is pointing upwards towards sky I'll get it corrected soon.
Extremely happy to see it in this condition.
Thanks for this awesome thread, read it completely before going to get it serviced.Even mechanic was surprised with the little but rare knowledge I had about all the parts ( aquired by reading 1 to 150 of this awesome thread ).

Honda dio cdi bricked

I have a honda dio 2015 model i did some modifications of engine kill switch and hazard light wth flasher
So previous 6mths ago the cdi some how burned i replaced with a new and again almost after 6mnths day after yesterday again the cdi got burned can anyone tell me what is the fault or the problem with the scooty so that in future it won't be persist
Thanks in advance

Honda Dio, Activa and Aviator

Has anyone installed a windshield on thier scooter? I'm thinking to install a good windshield since i started riding my Dio on highway.

Re: Honda Dio, Activa and Aviator

I have recently got my Activa 125 serviced at Honda Authorized Service Center. The detailed bill is given below. There were three significant changes
1) The service interval has been increased from 3 months to 4 months. So the total number of services in a year will be 3 in a year.
2) This is the first bill with GST.
3) The service center was not trying to sell me any maintenance plan where i have to pay about 800-1000 rs and i get some 10% discount or so on labour and parts.


The problems that I had identified were as follows
1) Engine shutdown when starting from stand still if we accelerate.
2) The panel below the side stand would come stuck.


Detailed bill

Re: Honda Dio, Activa and Aviator

Okay... Reviving this thread as i need some urgent help on my Activa 110.

My Activa has done over 52K kms. Running good. No problems.
The engine gets harsh exactly after 2.5K after each service. Now it needs a service, and i am planning to do it on my own. dont want to hear that BS from mechs that this is not good, etc blah blah blah.
I am tired with Honda Engine oil. Does any one has tried anything else other than Honda Mineral Oil, which performs well and doesn't get burned out so early?

Now my vehicle sounds harsh and is not able to pull properly needs a service. the last service was over 3.5K kms ago.

Can i use the newly launched Suzuki ECSTAR fully synthetic oil in Activa? any one tried FS oil in activa? what could i expect in performance change?
Any help is highly appreciated. Thanks.

Re: Honda Dio, Activa and Aviator

Try with Castrol instead of Suzuki oil. But please note that it is not recommended that you do the service on your own. Oil change is fine, but there are other oils to like Gear Brake oil which also need to be topped up and filled up. Further the battery, especially if it is non-maintenance free, also needs to be topped up with distilled water.

To answer your question, I have not tried other oils. I have gone only with what Honda service center puts into my activa. But yes after putting more 2500 kms in odometer the scooter does sound harsh.

I am also fed up with Honda Mineral Oil getting expired after 3 months. Honda really needs to change this and allow us to put in the oil of our choice. I never had this problem with my Yamaha vehicles. But it is only Honda which is so particular.