79 artic cat pantera

79 artic cat pantera

Post by blue eye » Sun, 17 Sep 2000 04:00:00


MY buddy has an old 500 arctic cat pantera. when he starts it up the
revs will speed up and then slow down, speed up and the slow down
etc,etc. it will not idle properly and when you ride it it will go for a
little while and then die. or it might bog down. he has good spark in
both cylinders as well as good compression it seems that there is fuel
going to each side as well. does anyone have any suggestions?  this is
driving us crazy  thanks

sean
Enjoy life while you have it, you may be broke tomorrow

 
 
 

79 artic cat pantera

Post by IRONDO » Sun, 17 Sep 2000 04:00:00

Most likely bad crank seals-get it running and spray some WD-40 or starting
fluid right on the crank behind the clutch- be careful. If you see an
immediate change in the way it's running, the seal is bad.  IRONDOG

Quote:
> MY buddy has an old 500 arctic cat pantera. when he starts it up the
> revs will speed up and then slow down, speed up and the slow down
> etc,etc. it will not idle properly and when you ride it it will go for a
> little while and then die. or it might bog down. he has good spark in
> both cylinders as well as good compression it seems that there is fuel
> going to each side as well. does anyone have any suggestions?  this is
> driving us crazy  thanks

> sean
> Enjoy life while you have it, you may be broke tomorrow


 
 
 

79 artic cat pantera

Post by nosp » Sun, 17 Sep 2000 04:00:00

we tried that and it didnt seem to make a difference  any other ideas?
thanks?   could it be the cdi?
sean
Quote:

> Most likely bad crank seals-get it running and spray some WD-40 or starting
> fluid right on the crank behind the clutch- be careful. If you see an
> immediate change in the way it's running, the seal is bad.  IRONDOG

> > MY buddy has an old 500 arctic cat pantera. when he starts it up the
> > revs will speed up and then slow down, speed up and the slow down
> > etc,etc. it will not idle properly and when you ride it it will go for a
> > little while and then die. or it might bog down. he has good spark in
> > both cylinders as well as good compression it seems that there is fuel
> > going to each side as well. does anyone have any suggestions?  this is
> > driving us crazy  thanks

> > sean
> > Enjoy life while you have it, you may be broke tomorrow


 
 
 

79 artic cat pantera

Post by Eric Curti » Mon, 18 Sep 2000 04:00:00

Quote:

> we tried that and it didnt seem to make a difference  any other ideas?
> thanks?   could it be the cdi?
> sean

Could still be an oil seal but on the mag side.  Also check your carb
boots to see of they are leaking.

--
ICQ 26608833; MnUSA# 65776; IRC Curt340; VSCA# 02446

 
 
 

79 artic cat pantera

Post by nosp » Mon, 18 Sep 2000 04:00:00

Thanks alot I will check those out.  and Eric I dont knw if you got me
message but thanks for the wiring diagram
sean
Quote:


> > we tried that and it didnt seem to make a difference  any other ideas?
> > thanks?   could it be the cdi?
> > sean

> Could still be an oil seal but on the mag side.  Also check your carb
> boots to see of they are leaking.

> --
> ICQ 26608833; MnUSA# 65776; IRC Curt340; VSCA# 02446

 
 
 

79 artic cat pantera

Post by Eric Curti » Mon, 18 Sep 2000 04:00:00

Quote:

> Thanks alot I will check those out.  and Eric I dont knw if you got me
> message but thanks for the wiring diagram
> sean

Yup, got it.
--
ICQ 26608833; MnUSA# 65776; IRC Curt340; VSCA# 02446
 
 
 

79 artic cat pantera

Post by Marc Westerlin » Tue, 19 Sep 2000 04:00:00

Quote:

> Most likely bad crank seals-get it running and spray some WD-40 or starting
> fluid right on the crank behind the clutch- be careful. If you see an
> immediate change in the way it's running, the seal is bad.  IRONDOG

Starting Fluid?!  Yow!  Be carefull with that stuff... a cracked
spark plug wire arcing over to the head could potentially ruin
your day...

-marc
'98 MZX670

 
 
 

79 artic cat pantera

Post by Marc Westerlin » Tue, 19 Sep 2000 04:00:00

Quote:

> MY buddy has an old 500 arctic cat pantera. when he starts it up the
> revs will speed up and then slow down, speed up and the slow down
> etc,etc. it will not idle properly and when you ride it it will go for a
> little while and then die. or it might bog down. he has good spark in
> both cylinders as well as good compression it seems that there is fuel
> going to each side as well. does anyone have any suggestions?  this is
> driving us crazy  thanks

Sounds like it's running lean... As others have said, check for
cracked carb boots and bad seals.  If those seem to pass inspections,
make sure the fuel filter and carbs are clean.  A blocked passage in
just about any circuit or the floats sticking will all cause all sorts
of weird problems.

-marc
'98 MXZ670

 
 
 

79 artic cat pantera

Post by Kcmeye » Wed, 20 Sep 2000 10:39:53

I have found quite a few of those old sleds where people take carb bowls off
and clean or replace the main jet thinking it is fixed. Especially if it had
been sitting for any amount of time.There is another jet in the carb which will
generally give somebody fits. It is the pilot jet which sits  up inside the
carb behind the main jet. A small screwdriver will take it out. I have seen
these things so gunked up you can't even see the screwdriver slots. Kevin.
 
 
 

79 artic cat pantera

Post by Jeff Woollet » Wed, 20 Sep 2000 04:00:00

The crank seals are gone..repace them!
Quote:

> MY buddy has an old 500 arctic cat pantera. when he starts it up the
> revs will speed up and then slow down, speed up and the slow down
> etc,etc. it will not idle properly and when you ride it it will go for a
> little while and then die. or it might bog down. he has good spark in
> both cylinders as well as good compression it seems that there is fuel
> going to each side as well. does anyone have any suggestions?  this is
> driving us crazy  thanks

> sean
> Enjoy life while you have it, you may be broke tomorrow

 
 
 

79 artic cat pantera

Post by Repairma » Sun, 24 Sep 2000 04:00:00

Carbs dirty in the idle circuits for idle problems, vent in gas tank
plugged, CDI goes out after it warms up. I've got a '77 Pantera f/a 500 and
that sucker eats CDI's, all the cats in these years when through them, I've
had spark when you pull it over but not the right spark to make it run.
--
John "Anything you say can & will be misquoted & used against you"
85 Indy 600
99 700XC
BRC member

Quote:
> MY buddy has an old 500 arctic cat pantera. when he starts it up the
> revs will speed up and then slow down, speed up and the slow down
> etc,etc. it will not idle properly and when you ride it it will go for a
> little while and then die. or it might bog down. he has good spark in
> both cylinders as well as good compression it seems that there is fuel
> going to each side as well. does anyone have any suggestions?  this is
> driving us crazy  thanks

> sean
> Enjoy life while you have it, you may be broke tomorrow

 
 
 

79 artic cat pantera

Post by Dram » Mon, 25 Sep 2000 13:47:03

look in a old chilton book for tyhe sled. it has trouble shooting on that exact
problem