Question about 2005 Honda Unicorn

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Is decarbonising is necessary

My Unicorn covered 40000 kms, is it necessary to decarbonise the bike. What's the necessary things I have to do ? Fork Oil Change ?, Petrol Tank cleaning ? Carborator cleaning ? etc please suggest.

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Hi! With modern fuels and oils there really shouldn't be any need to de-carbonise.(Unlees Mixture is incorrect?) If you are really concerned then try a quality fuel additive, read fully the directions for use and Bingo job's a good-un.
Fork oil change, is there a reason? are the forks weak? any seapage? if not leave well alone as you may open a Hornets Nest.
Telescopic forks/dampers use very light oil for suspension, too much will blow oil seals, so if you are determined to change the fluid then make sure the correct viscosity is used and critically the correct amount/quantity. Cleanliness is of the utmost!
Good Luck!
Paul 'W'

Posted on Dec 09, 2008

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Tips to maintain at 40000 kms

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!


Dec 09, 2008 | 2005 Honda Unicorn

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