Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

One of the less fortunate bikes that I have. Planning on doing a complete restoration soon.

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Yup. I changed my 3rd plug around the 29k interval. Ran in to some engine oil issues due to inaccurate carburettor tuning as a result the oil would get deposited on the spark plug. Adjusting the Carb fixed it for me. Not sure if there's any relation in between that. Also, my dad accidentally bought the Castrol Activ 4T 20w50 the last time. I used it till the current change. Didn't feel much difference in accelaration. My chain sprocket is almost undone. Hasn't started rattling. Need to shell some money and get it changed. Whatsoever, I'm unable to accelerate above 60kmph because of the chain. I thought it was a pickup issue. Got it checked and now chain seems to be the only culprit here. My acceleration reduces random in various speeds across the rev range. I bought the current bike (used) on Olx at about 23K on the ODO. I had changed the 2nd plug back then. The previous owner had used the bike rather harshly. Switched to a Ceat Secura on the Rear back then. Now, the stock TVS Front tyre is almost exhausted. Gotta change that too. The lack of grips on it has resulted in dust accumulation and slips during emergency braking a lot of times. I'm thinking of handing this bike to my dad now and swap it for a new HF Dawn instead. Not instead in using a high capacity bike for a city commute yet. Still got my brother's Honda Unicorn 150 (2017) in the garage. Too lazy to use it.

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Had run off the Castrol Power 1 20W50 a couple of times on the CT100B, the acceleration was WOW! in comparison to the other 20W50 grades I use and there was no harshness which is ideally present with using lighter oils, do give it a try if you don't mind shelling 370/- for an oil change, else you could get the Shell HX3 20W50 for 280/- which is what I'm currently running on.

I change my air filters at 5k intervals, rather change early than run rich and prematurely wear down the cylinder, just a personal opinion.

And I hope you're changing the spark plugs with a 10k replacement interval.

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

I use 20W40. Always did use that. 10W30 has heating issues and the shifts are rather too hard.

Re: Hero Moto Splendor/Joy/CD-Dawn/Passion

Manual recommends 10w 30 or 20w 40