Is decarbonising is necessary

white exhaust smoke indicates usually unburn fuel, it can be either, problem with gunky injectors, wrong timing or problem with valves, non-sealing pistons or glaze on the cylinders

I am usually recommending in cases like that use of any decarboniser add to the fuel (removes glaze from cylinder and help therefore seal), and then use some injector cleaner.

in your case - you were using too high gear and hence the glazing on the cylinder - if you did not have these problem before.

for future references, I would suggest towing in that condition on all four drive, and forget about fifth gear...

add injector cleaner first, and at next re-fuel add decarboniser.

hope this will help you at least a bit - do not forget to vote...

Possibly, Take it to a mechanic and have a compression test first.

give your bike for a detailed checkup in honda genuine showrooms

Did you ever done Decarb for your Motor Cycle ? It is recommended to do a Decarbonisation of Cylinder Head and Replace the liner every 30000 - 40000 Kms .
Black Smoke Can be Because of
1. Damaged Cylinder Liner 2. Dirty Cylinder Head 3. improper Combustion 4. Fuel problems 5. Fuel Pump / Carburetter Problems
need Physical Examination Foe a definite Solution

Please Rate my answer and Support me

Hi
Decarbonise the exhaust system.

Regards
Phillip

HI,

First your silencer needs to be decarbonised.

Second the quality of gas may not be good.

If problem still exists get your air fiters/carborater cleaned up.

Hope your problem is solved.

Thanks
Kanu

I too have a similar problem. I couldnt find any solution. If you have found it please let me know.

At 4000kms you can opt to do a minor service the first thing is to dump the engine oil no matter how clean it looks you will have gunk in it change your oil filter as well. You can change the fork oil if you want but it is not needed unless it is orignal from 2005.Clean your tank out and change your fuel filter have a look at your plugs if thay have a lot of carbon change them thay are cheep. If you want to decarbon put in hot plugs and ride your bike for a good hour and then take them out do not leave them in have a look at the needle and seat in your carbi if the needle fits snug in the seat then they are fine don't forget your chain and sprockets if you can slide your chain back and forth while it is on your rear sprocket it will need replaceing have a look at the teeth make shore they are not missing or bent. I hope this help you out!

FOXMICK