CBR 1000F "Hurricane" 1987-1996 CBR 1000F

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Old Mar 19, 2011 | 03:27 AM
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horse_power777's Avatar
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Hi All Changed oil today.. the manual says I should use 10/40 SAE - I put in some 20/50 instead.. is this a bad thing? I noticed a little more white smoke than normal.. I checked the level and its right on the mark.. do you think the smoke is cause of the 20/50 grade oil?
 
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Old Mar 19, 2011 | 04:41 AM
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I actually use motul 20w50 to slow oil consumption problems and was told the only ill effects I may get is some clutch 'stickyness' watever that means. I have felt no difference apart from easier gear changes than before, the previous owner probably put some kind of 'smoke stop elixer' in it to sell to me as gear changes are now better but smoke production is up!
 
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Old Mar 19, 2011 | 05:19 AM
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cool Jarvid.. took it for a run to night.. no smoke..and gears where changing nicer and engine quieter.. i might leave it.. i think the ol girl likes it.. clutch is prolly due to the correct pressure from the new clutch hoses.. nice run..
 
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Old Mar 19, 2011 | 07:56 AM
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A few peeps use 20w50 with good results ( less noise ect), I plan to use it for my next oil change 'cos the cam chain is rattling like a tin can full of bolts when she's cold.
 
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Old Mar 19, 2011 | 08:50 AM
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Oh goody another oil thread....
 
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Old Mar 19, 2011 | 08:58 AM
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Originally Posted by Indiana Hurricane
Oh goody another oil thread....
sorry...newbie at this.
 
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Old Mar 19, 2011 | 08:26 PM
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No question is a dumb question , however that being said , proficient use of the
search button is always recommended ...... everybody starts somewhere !!
 
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Old Mar 19, 2011 | 08:36 PM
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As a newbie myself I will say it can be hard to find what u are after sometimes with the search button, a bit like google, you can chase your own *** around for ages and still not find what u are looking for
 
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Old Mar 20, 2011 | 04:18 AM
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I've just put 20/50 in my cane. Been running it for a week now and have to admit it has changed the feel of the engine for the better.
I've always stuck to Motul 10/40 but having read the experiences of others around here who have gone to 20/50 I thought what the hell, and took the plunge.
The main reason for doing this was to quieten the CCT.
Not only did I drain the oil but also removed the cam cover and sucked all the remaining oil out of the CCT oil chamber. I worked the remaining oil out of the CCT piston so that the whole thing was empty of the old oil. (it takes a while to do this and is much easier of the top chain guide is removed to enable getting a god sized screw driver onto the arm of the tensioner).
I refilled the CCT chamber with 20/50 and pumped the tensioner to get the oil back into the cylinder.
Once she was all back together and spinning over I was quite surprised at the reduction in CC noise. Having done about 500 miles this week she's still sounding quiet.
The oil? Some cheap stuff from a local car spares shop.
The only time I get white smoke is when it's really cold and then only for a minute or two.
I may well be changing the oil more regularly than I did before though, just to be on the safe side but so far, so good.
 
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