Oil burnin thumper

J

jacobone

Member

Feb 3, 2003

152

0

• May 4, 2003

• #1

Well heres the story My friend bought a 92 xr z 250 it has 2 carbs and xr500 heads. i think its bord out. and it burns oil...... like every once and a while it will shoot out a blast of blue smoke like my 2 stroke.... it had an oil fouled plug...and we changed it.... i am wondering what we could do to fix it

 

B

Bricks88

Sponsoring Member

Mar 14, 2002

70

0

• May 5, 2003

• #2

From my car experience smoke during acceleration is valve seals and during deceleration is the rings.Cars and thumpers are both four strokes. JMHO

 

J

Joepro9

Member

Feb 17, 2001

503

0

• May 5, 2003

• #3

my old xr200 smoked and burn oil, the valves and cam were shot letting oil seep in.

 

S

Studboy

Thinks he can ride

Dec 2, 2001

1,818

0

• May 5, 2003

• #4

It's either the rings or the valve seals. It sounds like a rebuild is in store.

 

Patman

Pantless Wonder

LIFETIME SPONSOR

Dec 26, 1999

19,765

1

• May 7, 2003

• #5

Originally posted by Joepro9
my old xr200 smoked and burn oil, the valves and cam were shot letting oil seep in.

Click to expand...

:think: Care to expand with a little technical information on how the cam caused oil burning?

 

J

jacobone

Member

Feb 3, 2003

152

0

• May 7, 2003

• Thread starter
• #6

how extensive of a rebuild is it

 

J

jacobone

Member

Feb 3, 2003

152

0

• May 7, 2003

• Thread starter
• #7

cause for a 13 and 16 year old we probly can do right in his garage with some outside help

 

J

Joepro9

Member

Feb 17, 2001

503

0

• May 7, 2003

• #8

The valves and camshaft assemblys were shot(and all parts associated, Ie seal etc.)