03 pro-x 800 problem!

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03edgex700

Free Member

Sep 12, 2012

53

0

6

• Dec 31, 2013

• #1

So I was riding my 03 pro-x 800 and it had been running perfect all day. Went inside for a hour came back out went on the lake and it started backfiring really bad, died and couldn't start again. I did unplug the tps and i was able to get it started but it ran really bad. But it did run. It has 450 miles on a rebuilt motor, any ideas on what's wrong? Thanks for help guys.

 

T

theultrarider

Well-known member

Nov 26, 2007

3,311

891

113

Soldotna Alaska

• Jan 2, 2014

• #2

First guess would be something iced up when it cooled down. Either the safety switch in the throttle lever or in the fuel system. Get it thawed out good first and see what happens. If it runs well then, drain your fuel and start fresh with some iso heet in the tank.

 

R

richeyrich

Free Member

Oct 9, 2013

27

2

3

• Jan 2, 2014

• #3

not sayin it happened but possibly a mild cold cease..

 

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03edgex700

Free Member

Sep 12, 2012

53

0

6

• Jan 3, 2014

• #4

Thank you guys for the answers but I found the problem, the white wire for the coil that goes into the CDI plug in and it slowly but surely came out. Over time it was shorting out causing the back firing.