Is this important...?

[M1ke]

I was reading a manual for maintaining the rs125 and on one of the pages it said...

'Every 4000KM, de-carbonise the cylinder and clean the exhaust valve to ensure smooth running'

I dont think this has ever been done on my bike (unless its done during services?) and its done 8000km. Would not doing this cause the bike to be slower by any chance?

cheers for any help
newbie

[kev]

i dont know much about 2 smokes but i would say yes it would. keith would be the man to ask on this as i think he has one
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[Doddmaster]

Yeah it would would be like having an extra layer of muffling in the can. I'm not exactly sure what to to do get rid of it though, I'll ask Jack if no-one replies

[Hex]

my experiancing of decokeing is a little brutal, works though

take head off and basically get wire brush on drill and polish it all off

just dont score the head or anything!

I'm sure there'll be a better way of doing it though so wait around for some better advice before grabbing the drill and wire attachment
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[Kickstart]

Hi

Yes, clean the cylinder head and power valve up. It probabl should have been done as part of the service though.

THe problem is that as carbon builds up it makes detonation more likely which may result in a holed piston. The power valve just starts to stick which is a pain

Both can be cleaned up. Whip the head off and have a look. I tend to carefully use a knife blade to crack off the worst of the carbon build up, and then use a cloth and autosol to polish it up (which is probably pointless but it looks nice for about 10 seconds and I never claimed to be the fastest person working on a bike). Same for the valve

All the best

Keith
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