Honda crf450r oil problem

T

Tollumen

Member

Feb 28, 2017

1

0

• Feb 28, 2017

• #1

Hey,

I have just bought an 2004 Honda crf450r, and it has water in the oil, as well as oil in the coolant.
So my question is, is it the head gasket or the water pump? Or maybe something else?

Is the crf450r a good bike, or should I just fix it and sell it again?

I haven't been riding in maybe 8-10 years, so got a lot of catching up to do.

 

truespode

Moderator / Wheelie King

Jun 30, 1999

7,985

252

• Mar 3, 2017

• #2

I had a 2003 and the water pump seal went out on it several times.

It is a great bike... replace the seal and enjoy!

 

13FoxTrot

~SPONSOR~

May 22, 2018

33

8

Florida

• Jun 11, 2018

• #3

Truespode is correct, seems to happen fairly often with the 2003 CRF's.

 

Rich Rohrich

Moderator / BioHazard

LIFETIME SPONSOR

Jul 27, 1999

22,839

16,904

Chicago

• Jun 12, 2018

• #4

Make sure you replace the water pump shaft as well as the seal. It's common for the shaft to wear enough to be slightly undersized and cause premature leaks. It's an easy and inexpensive part to replace.

 

B

behappie

Member

Jun 13, 2018

2

0

• Jun 13, 2018

• #5

Sometime in 2012, I got 2003 Honda crf450r; I did not have a problem with it until about two years after I purchased it. The exhaust was always stuffed with thick smoke residue.

 

O

online Supercross

Member

Nov 29, 2018

2

0

• Nov 29, 2018

• #6

I picked up a 2014 model last week, brand new off the showroom floor. Rode it once to break it in and then replaced both engine and transmission oil. Didn't pay much attention to it.