Query Approved.

Congrats on the bike! I had a Kinetic Campus Chill (modded to a Kinetic ZX) 99 model with me till 2004.
First of all, Zoom was launched only in 2001. Does the bike have the silencer inside the RHS panel or outside as a normal type? The latter type of silencer was launched from year 2000 onwards, named Y2K. Please check.
As said earlier, the models before 2000 had more of metal parts than fibre&engines lasted longer, giving more mileage&less starting problems. But they used to give out more smoke, hence the Y2K model silencer came into existence. So, if your bike has the older type of silencer, some amount of smoke is expected, you may not need to open up the engine for that.
Please let me know the following: How many kms.has the bike done till now? Was the 2T oil filled at regular intervals?
Get a service done&the carb cleaned well, the mechanic will also be able to comment on the engine condition. I assume the clutch plates need replacement, due to lack of pickup. As it is the auto clutch mechanism wears out the plates very fast in this bike. Other parts due for replacement will be brake pads, starter motor if having a problem.

Start with the simplest things 1st - make sure you fill petrol from a bunk known for quality petrol. Use the best 2t oil you can afford - Shell VSX2 and Castrol Jet X at the very least or Petronas 5000 or Motul 510 which would be the best available in India. Make sure pump is adjusted right.

Check if spark plug is of recommended grade and is not worn out and gapped right. Replace if necessary.

Check and clean air filter.

If you still have issues, you probably have a lot of carbon in the cylinder and/or silencer.

Are you using the 2t oil as a premix(mixing with petrol) or seperately.Check the oil pump to make sure excess oil isnt being supplied.
For the third query-check carb settings as fell as check the air cleaner.

The speeds you mentioned sounds like seizure, open up the engine and check out.

^^^ How can it be siezed when the bike is running till 45 kmph?

So you mean to say that a seized two stroke engine will never run, rite !!

I Have a two stroke kinetic...95 model... ZX .. i recently got it re bored... a 110cc piston put coz it was time ...... when i start in the morning , i get so much smoke , a mini cloud will be formed..

anyways , is it a 2 stroke ? nothing will be wrong with engine.. check for flow of oil.. enough oil should reach the engine properly.. replace the oil if its old.. the oil will be spoilt...u may clean engine with kerosene or petrol... don use water... use degreasing agents to get rid of oil'ly deposits... keep the place clean from dust and dirt...

ur bike is not supposed to be pushed beyond 40 ...typical case of a new piston installed..make that a bore kit..

if u push the engine it will cease... a krrrrr krrrrrr krrrr sound will keep coming.. then once ur vehicle switches off , it wont start... the piston will cease because , the engine will not be built to satisfy the cooling needs of a bigger piston ..... ride it very gently... then beyond 500 kms after riding , increase speeds by 10 kms or 15kmph ... take it slow...

any seized engine can be made to run ... u kno what happens when an engine seizes ? the piston gets jammed.... instead of moving up and down as it normally should , it will jam.. coz the piston would have swollen coz it not getting proper cooling... once it swells it doesnt return back to normal condition...sadly........ the piston now need to be hammered out of its socket....

Thanks, Sar.. here is the info you requested,

1, the silencer is behind the panel and not the one coming out, the old models have it. I did notice many other Kiny's having the same silencer but the smoke is hardly to be noticed. My bike blow out like a chimney
2. The bike has done 70000+ km and about oil fill up, i am not sure but i feel it was not done at regular intervals. I filled it up after i got the bike serviced as they didnt fill up the oil tank.
3. i got it serviced as soon as i got it and did mention to the mechanic to clean the carb and stuff but i don think i saw any difference. as i mentioned i saw the diff only after i filled up 2t oil from HP.
4. i will check the clutch plates to see if it's worn out. any reference to how much the thinkness should be.

Thanks for the approval, Aryan

Have done it and it did make a difference. The smoke emits at a speed of 30 and higher and when i take a pillion.

I need to check the spark plug. i don have any manual to refer it but can i take the same grade as a Activa or Dio - Champion P-RZ HC

Am planning to change the air filter as i removed and it is not in good shape. Shall i use Urethane Foam (Dio Air Filter)

The silencer is welded. I noticed it when i removed the panel. Can i change the silencer to a new one.

Any particulars i need to check for this?



Thanks a lot guys for your help on this.

bike pulls back coz the piston is still not used in the running range...

suppose a person breaks his legs , can u imagine him to run a marathon right after the operation... it takes time brother..

1-As per my observation,ki-ho performs best with the Idemitsu kinetic 2t oil(if its still available),else castrol jettix is good but its a tad thicker than the former.
2-I guess the scoots getting too much oil.Hence smoking.
3-spark plug for kinetic and activa are different.
4-Use the oe filter.

ps-i have a ki ho marvel

No i dont know ..


So the piston would jam not because of proper cooling, hmmm ok, so you mean to say that even without 2t oil, or proper rings clearance the engine will run fine with proper cooling, what do you mean by cooling actually ? these engines are air cooled engines, unlike like your P 220.

The piston doesnt get jam automatically, before seizeure the piston rings will expand in size ( this occurs due to no 2T supply or improper rings clearence worst case continnous non stop harsh riding with improper rings clearance), due to the expansion of rings there will be seizure marks on the liner which will void the free movement of the piston and drop in compression, period the compression goes down so u will automatically feeel drop in power mileage etc etc.



what is the running range ? are you refferring to runnin ? if yes then the thread starter has not posted he has got the rebore done, whay are you excited with marathon breaking leg etc etc ...


@ Vijith unnithan please do check your piston rings, if posssible do a compression check, this would give you a clear picture.

Hey Vid... i have not rebored my engine its still stock. so the question of running range is out

I never tried to rip the bike, its just that when i try to accelerate beyond 40-45 along with a Pillion, emits a lt of smoke and then just pulls back....

Thanks, Psycho, i will have that checked to see if they are in good shape...