Fazer Owners Club - Unofficial
General => General => Topic started by: stevierst on 26 September 2016, 08:24:51 am
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Never encountered this in a fazer (boxeye) before, and had 4 of them doing well over 100k on em.
When the engines cold the clutch slips at 4k, but gets less and less as the engine oil warms up until there's no slip at all. I've only had the bike a couple of months, but done the basics like adjusting the cable so there's some slack on it.
Gonna change the oil this week, but don't think it's that.
Any suggestions?
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Sounds like oil to me. OK when warm as the oil is thinner.
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It's got to be heat related and the most obvious thing is the oil. Sounds like it's completely the wrong grade to me.
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with the others on this
BTW, nice to have you back.....was only thinking the other day WTF has happened to Stevie :)
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Mine does the same regardless of oil brand. The clutch springs as standard are adequate, but as they age the free length reduces until they don't quite supply the pressure needed when the oil's cool and has higher viscosity.
The other factor is wear and contamination of the clutch plates. If oil with friction modifiers has been used you might as well change the friction plates and springs, otherwise just change the springs.
Don't be tempted to buy aftermarket springs: they're invariably heavy duty, turn the nice light clutch action into absolute misery in town and overstress the pressure plate and actuator.
If it's the first time the clutch cover has come off you'll need a new gasket, but if you grease one side of the new one (not with moly grease!), you'll be able to take the cover off in future without wrecking the gasket.
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I'll second the above in relation to the clutch springs. Buying heavier duty springs is the wrong way to go in my opinion - I had a set of EBC ones and they were just impossible to use and I ended up with the original ones I took out
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Well I changed the oil and filter, and to be honest it really needed it! What came out was pretty minging!!!
As for the clutch slip? Well I went for a 30 mile ride, and it was a little better, but still slipped though. Looks like it'll be a set of springs next, it's all trial and error!
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Possibly clutch plates contaminated. Might as well change the plates and springs now.
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Change the friction plates and springs, use OEM springs. Check the thickness of the steel plates to ensure they are ok. If there is any blueing on them change them also.
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I would inspect the plates for wear and if they are with in the limits I would clean them with brake and clutch cleaner and a light rub over if fine emery paper. I will wait to hear what others think to this.
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Just swapped out the clutch springs for a set of 10% uprated ones, and the lever pressure is noticeably stiffer!!! Not so bad for me with my big navvys hands, but it does take away that smooth easy movement of the Fazer clutch.
So the result is, it still slips slightly, but only when you go WOT when the oils not warm. It feels like a step in the power delivery more than anything else! So I'll have to get some new plates later on, she's still useable for my work run for now. Cheers guys!