2008 RMZ 250 Shifting problem

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proecadgod

Member

Aug 9, 2010

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• Sep 15, 2010

• #1

I just noticed my bike doesn't want to shift into 4th at speed. I tried putting along slowly and I am able to get both 4th and 5th. Weird...

Now here is what I think it might be: I just recently changed the oil with Maxima 10w/40 regular oil and didn't do the filter.

If the person who owned it before me used synthetic then maybe that plus the dirty filter can cause this.

-Dave

Update: I talked the previous owner and he was running Golden Spectro 4 so it might be a synthetic to non synthetic issue.

 

Last edited: Sep 17, 2010

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proecadgod

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Aug 9, 2010

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• Sep 22, 2010

• Thread starter
• #2

So I did the oil and filter change using 10w/40 synthetic oil and it shifted better, but then as it got hot it wouldn't shift up into 4th from 3rd at high RPMs. I could however shift down to 2nd and then shift back up to forth which of course is not good at all.

 

Last edited: Sep 22, 2010

holeshot

Crazy Russian

LIFETIME SPONSOR

Jan 25, 2000

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• Sep 22, 2010

• #3

Oil is not your problem if your bike refuses to shift into another gear, skip gears, etc.

Sounds like mechanical tranny issues of some type ...

 

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proecadgod

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Aug 9, 2010

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• Sep 23, 2010

• Thread starter
• #4

Any idea what this would cost to get repaired? If I had the time I could split the case and do it myself, but I work for myself and have little time for this kind of project.

-Dave

 

holeshot

Crazy Russian

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Jan 25, 2000

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• Sep 23, 2010

• #5

Can't give much advice on cost or even the problem (other than it's not oil voodoo). It could be the clutch, since it happens at high rpm and when hot. Check that first since it's an easy job.

I'm not really clear about what you said about going from 2nd to 4th .... did you mean it skipped past 3rd?

If the cases need to be split, someone with experience in these matters can chime in (as I have very little).