2001 Polaris scrambler won't idle
Apr 12, 2013 | 08:49 PM
#12
Polaris ATV Expert
Retired and loving it!
Retired and loving it!
Joined: Jun 2008
Posts: 24,350
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From: North Texas
Basically the same carb as the Sportsman. Complete carb #'s are different mainly because of jetting differences. Sportsman has a 152.5 main jet,the Scrambler has a 155. Both carbs use a 40 pilot jet. Usually slides are drilled out when you install kits like Dyna jet. All this does is give the diaphragm a little more vacuum lift. Usually a small drill bit is supplied in the kits designed for this.
Apr 13, 2013 | 08:09 AM
#14
Polaris ATV Expert
Retired and loving it!
Retired and loving it!
Joined: Jun 2008
Posts: 24,350
Likes: 44
From: North Texas
Before you do anything look at this link on cleaning and modifying the BST40 carb. The BST-40 Bible - ADVrider
Plus this pdf link is the breakdown and cleaning on the Polaris BST40 carb.http://www.google.com/url?sa=t&rct=j...,d.b2I&cad=rja
Plus this pdf link is the breakdown and cleaning on the Polaris BST40 carb.http://www.google.com/url?sa=t&rct=j...,d.b2I&cad=rja
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