crf 250r

[pilsner rider]

i have a crf 250 r its using oil is that a sign that its time to rebuilt the motor

 

[_JOE_]

Yes.

If you don't already have one, get an hour meter so you can set intervals for service.

What year and how many hours on the bike?

 

[pilsner rider]

its a 2004 and not a whole bunch since i did the motor like 100 hours mostly crusing and playing in gravel pits

 

[pilsner rider]

crf 450 r

i'm looking at getting an 06 crf 450 r with like 20 hours on it anything i should know about this bike

 

[Patman]

I'll take a guess you do not have a Factory Honda Service Manual for this bike. If you do have you looked at the maintenance schedule? :laugh:

 

[Patman]

As much as you can. What kind of maintenance has the owner done? Is there a factory manual?

 

[pilsner rider]

i change the oil pretty often don't think i ever went more then twenty hours on a change

 

[pilsner rider]

is there anything out of the ordinary that is a problem with them

 

[J-man]

Well for starters its a 4 stroke and when you buy them it seems like there is always something wrong with them. Like Patrman said ask about the maintenance that has been done, Also ask if there is a factory servivce manuel so you will know what you are doing when you work on it.

 

[J-man]

20 Hours? On a high performance bike like that the oil should be changed every 3-4 times you ride it. Take the top end apart and check everything out, Probably need a new one.

 

[pilsner rider]

ok cool thanks and i was just taking a shot in the dark about the hours beteen oil change and that would have been like the most it ever seen most of the times would have been less for sure and not really hard riding just crusing back roads and ****

 

[_JOE_]

20 hours is about the lifespan of the piston rings. Worn oil rings could cause the oil consumption as well as valve seals.

When it comes to a modern high performance thumper you NEED an hour meter.

 

[RM85rider123]

20 hours is about the lifespan of the piston rings. Worn oil rings could cause the oil consumption as well as valve seals.

When it comes to a modern high performance thumper you NEED an hour meter.

hour meters should come stock on the bike.

 

[_JOE_]

hour meters should come stock on the bike.

:cool:

 

[mdavidso]

I dont know if this will help but my older four stroke burns oild bad! I know it needs to be rebuilt but since I'm hurting for cash and still ride i put a little 80 weight in my bike, it works for me because I know for a fact that my vavle guides and seals are bad.

 

[_JOE_]

Why would you put gear oil in your engine?

 

[holeshot]

A thing to remember is that engine oil and gear oil have different viscosity rating scales. Example: 20 weight motor oil has about the same viscosity as 80 weight gear oil. Check link below ...

http://www.maximausa.com/technical/lubenews/spring98.pdf



As far as the other differences between the two, that's just another 50 page oil thread ... I've got better things to do.. like lunch ....