Didn't start machine at all last year,decided to see if it would start ,will start and idles nice but when I try to speed it up it bogs and dies unless i use pirmer then it will rev up as long as I keep primeing if I stop it will die or if I leave thottle alone it will idle took apart and cleaned both carbs,machine will run now but bogs when you hit thottle,have to pump it to get it to rev up,seems like its starving for fuel any ideas???I also tried replacing fuel pump with one I had from dif machine,didn't make a diff.When I get it to rev up it sounds good
ski332
If you didn't run it at all last year and you didn't drain the carbs, take them off, clean them up properly and reinstall before you start troubleshooting anything else. Could be something as trivial as a stuck fuel inlet valve.
Most everything related to carb specs can be found here:
http://216.37.204.206/wps/Skido
EM/Skido...;A=126&B=12
I also have the 1993 spec book somewhere, I'll scan a couple of pages today if I get the chance. Be sure to review the carb components listed at the above link first though.
http://216.37.204.206/wps/Skido
EM/Skido...;A=126&B=12I also have the 1993 spec book somewhere, I'll scan a couple of pages today if I get the chance. Be sure to review the carb components listed at the above link first though.
Here are the detailed specs for the 1993 Skandic II 377, straight from the spec book:
Carbs: 2 x VM30-179
MJ: 140
Needle Jet: 159, O-8
PJ: 35
Needle: 6DH7
Needle Setting: 3
Air screw adjustment: 1 (turns from fully closed)
Idle Speed: 1800-2000RPM
Slide Cut Away: 2.5
Float Adjustment: 23-25mm (0.91" to 0.98")
If you use all of these settings and it still won't work, you have other issues.
Have fun.
Carbs: 2 x VM30-179
MJ: 140
Needle Jet: 159, O-8
PJ: 35
Needle: 6DH7
Needle Setting: 3
Air screw adjustment: 1 (turns from fully closed)
Idle Speed: 1800-2000RPM
Slide Cut Away: 2.5
Float Adjustment: 23-25mm (0.91" to 0.98")
If you use all of these settings and it still won't work, you have other issues.
Have fun.
I assume you are using fresh fuel? Gas doesn't last like it used to. I ran into heaps of problesm with gas in 45 gallon drums that are refilled annually. Low vapor pressure was our key problem and it resulted in very similar problems as you describe.
I have the same trouble yesterday on my Skandic 1993 (503R).
Idle was ok but could not take gas.
First, screws on the bottom (bowl) of one carbutator was not full thight. I didn't saw gas under it but ...
The air screws were a bit too open... now it run ok (I put them about 1 1/4 turn)
Perhaps it is the same for your skidoo?
Idle was ok but could not take gas.
First, screws on the bottom (bowl) of one carbutator was not full thight. I didn't saw gas under it but ...
The air screws were a bit too open... now it run ok (I put them about 1 1/4 turn)
Perhaps it is the same for your skidoo?
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