Normal to have fine bits of metal in oil filter?

[Scouse]

How long have you had the bike for? also if it is second hand how long did the privious owner ride it for befor selling it I belive that Motocross bikes should be reconditiond after every 30 hours riding

[crfchick]

Thanks so much guys! So it sounds as if this could be perfectly normal wear and tear? Yeah, Kezza I would say some of the bits were more like sand-sized "sparkles". There are no brass coloured bits in there. The reason I was concerned about these metal bits was because the bike had not been starting as well as it had been and because of the milky-ish oil, so I'm being super vigilant about it. And my friend replaced his oil filter at the same time as me, and his didn't have any fine metal bits in it so I was a bit worried!
The bike has done probably about 20 - 30 hours

I concur. sounds like a bit of the old oil in the breather trick. possibly resulting in a wee bit of engine wear if the filings you saw are not like the normal clutch plate "sparkles". But also possibly to do with the incorrect oil filter installment that you mentioned. Could you please elaborate on this for us to pontificate further?

[Jay GTI]

No offense intended, but christ there's a lot of crap being spouted in this thread.

Listen to Noobi.

[crfchick]

Just being careful as I didn't know if it was normal. Sounds like it is so that's awesome.
p.s what's the deal with these magnetic sump plugs? They sound good!

No offense intended, but christ there's a lot of crap being spouted in this thread.

Listen to Noobi.

[barty5]

No offense intended, but christ there's a lot of crap being spouted in this thread.

Listen to Noobi.

Dang your right there best watch out there another truck load on the way im sure. My 450 as with countless others have always had small traces of fleck in the oil you only have to see how they get ridden to guess how along with clutch abuse/wear these thing are not road bikes pot around (you'll notice all comments that are telling you the motor is poked are from the road section )

[ktm84mxc]

Yes magnetic sump plugs are great as they catch the particles floating in the oil.
Itz not uncommon for new bikes to have some particles in there oil, these normally come from the clutch plates & baskets.
To flush out the old watery engine oil may take 3 goes , as you need to clean between the clutch plates.
Check your gearbox breather hose as this can let water in if routed wrong, it must always face down otherwise itz just a funnel.

[cbfb]

you'll notice all comments that are telling you the motor is poked are from the road section

You're right, my experience is all with road bikes so will leave it to you experts, just trying to help

[Reckless]

yeh agree with the dirt bikers about the particles in the oil!!

BTW: The oil change time in the manual for my 200exc is 20 hours.

Just to add a couple of points to the discussion. If your clutch plates are aluminum as most are (or a combination of steel and ali)

There will be more discoloration of the oil
There will be more particles in the oil
Your magnetic sump plug will not take these out.

Common mod with the Cr 250 was to put all steel plates in! Gave a little fly wheel weight effect, didn't wear out as fast and stopped a lot of the slugging problems! Its a good mod if they have steels for the RMZ next time you have to clutch kit it!!

Agree with the comment on the oil filter if its had no spring holding it into its mounting and its been floating round. Then its been doing stuff all which is possibly the reason your oil looks a lot more crap then usual! Fix this as top priority!!

[vr4king]

No offense intended, but christ there's a lot of crap being spouted in this thread.

Listen to Noobi.

Hmm Im hoping that wasnt aimed at my post at all hahahahhaha
Were all trying to help out

[cbfb]

do road bikes even have sumps?

Some wet sump engines do but not all.

[Jay GTI]

Hmm Im hoping that wasnt aimed at my post at all hahahahhaha
Were all trying to help out

Nah not aimed at you. Agreed that people are trying to help, but bad advice is far worse than no advice...

[CRF119]

How long have you had the bike for? also if it is second hand how long did the privious owner ride it for befor selling it I belive that Motocross bikes should be reconditiond after every 30 hours riding

If you do regular oil changes id expect to see a easy 50-100 hours before it becomes an issue. Maybe 30 for rings if you want the most from your bike but that is all.

[Rupe]

On a four stroke

Change you oil every 5hrs
Oil filter 10hrs
air filter EVERY ride


Check you valve clearances if you are having starting issues.

[motor_mayhem]

for my old RMZ the manual said oil change every 6 hours and I had no problems for the 2+years I had it, for the newer CRF manual says oil change every 15 hours. I see no reason to disagree with the manual

[Rupe]

for my old RMZ the manual said oil change every 6 hours and I had no problems for the 2+years I had it, for the newer CRF manual says oil change every 15 hours. I see no reason to disagree with the manual

Oil is cheap, motors arent. There is heap of info on the web about why 5hrs is a good time to be changing the oil on a 4stroke.

Lets say I see brass fillings in my oil, you'd be running another 10hrs or untill it shit the bottom end. Bit of a gamble. Up to you I guess but thats what majority of the guys that own 4strokes do that I know.


Actually just reading again, CRF would be different as they run seperate trans and engine oil, RMZ's don't.