Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: Colonial-Clive (yindi) on August 14, 2017, 05:12:05 PM
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Hi guys and gals,
Just got MOT on bike after total rebuild, rebore too 600cc new shells, chains, seals etc.
After getting back from mot noticed a lot of smoke coming out of breather filter (took pipe off) the bike has been stood for about 3 mths with only the odd start up now and then, should I be concerned or is it just hot as running in? (Using halfords 15w40 mineral oil for running in)
Any advice greatfully received, clive
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Is it smoke, or is it steam/water vapour boiling off?
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Hi, hairygit well to be honest I don't know it didn't smell overly of oil and I had only ridden it 5 miles, it was white smoke/vapour! I'm thinking the worst and hopping the best!!! Always the glass half full type me. ;) ;) ;) ;)
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Standing for 3 months, and occasional start ups will produce a fair amount of condensation in the oil, which really needs a decent run to get the engine internals thoroughly warmed up, not overheated, and the water will boil off the oil and the issue should desist. Has the dipstick got a white/creamy deposit around the top? Sure sign of condensation in the oil. Give it a good run,30+ miles, get it hot and all should be well. If not, remember until the bores are run in properly (at least 500-1000 miles) there may be some blow by past the rings until everything has bedded in properly, quite normal.
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Thankyou Hairygit for your reasurance in this most worrying of matters that has befallen my Ernest of efforts, it is wonderful too be able to have the master of all that is honda SoHc to belay my fears.
Thanks Clive
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+ 1 with Hairy, you need to get it hot and out on a good 100 mile run.