86 trail boss carb issues - Polaris ATV Forum
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post #1 of 12 (permalink) Old 09-14-2019, 06:34 PM Thread Starter
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86 trail boss carb issues

Hi just stared having a flooding /gas pouring out the carb i did have the carb apart is there a rubber or nylon seat in the needle /seat maybe i lost it if there is one .Thanks

Last edited by Vulch; 09-14-2019 at 06:42 PM.
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post #2 of 12 (permalink) Old 09-14-2019, 06:43 PM
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There is an o-ring on the seat part but it wouldn’t have fallen off. Probably need to take the carb apart again. Could be just something went through and is holding the needle open


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2001 Magnum 325 MOSE 12" rear wheel conversion. 25" Sedona Coyote tires
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post #3 of 12 (permalink) Old 09-14-2019, 07:57 PM Thread Starter
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Quote:
Originally Posted by stave7119 View Post
There is an o-ring on the seat part but it wouldn’t have fallen off. Probably need to take the carb apart again. Could be just something went through and is holding the needle open


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Thanks for reply i can see that there is no o-ring in the seat i can see brass i did use compressed air to blow the carb and all the needle and seat is it possible i blew out the o-ring ..Thanks
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post #4 of 12 (permalink) Old 09-15-2019, 06:17 AM
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I don't think so. Looking at the parts diagram, there is a "packing" that goes in there. Generally that is an o-ring that goes around the seat part and seals it to the bore. But if there isn't a groove around the outside of the seat for the o-ring, then it would go under the seat and could have fallen out. Take a look at the parts diagram here and see what you have. Could be the float set too low or not floating.

http://parts.polarisind.com/images/1170/1170048A.gif

Mine: 2018 Sportsman 850SP - 26" Bear Claw HTRs on OEM steel wheels(I really don't like the Aluminum ones)
Polaris Hand warmers, Mirrors.
Hers: 2019 Sportsman 450. 26" Bear Claw HTRs on Moose 427X Wheels.

2007 Sportsman 500 EFI, Polaris Winch, 25" Bear Claws QSC Clutch Kit, Hand Warmers
2001 Magnum 325 MOSE 12" rear wheel conversion. 25" Sedona Coyote tires
2017 Polaris Ranger 1000XP - Roof and front glass
2018 Kawasaki KLR650
2001 Magnum 325 Warn winch and Moose 60" plow-Sent to Daughter and Son-In-Law since his blew up
SOLD 2004 Sportsman 600 Twin
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post #5 of 12 (permalink) Old 09-15-2019, 10:43 AM
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I've seen people install the needle upside down too

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post #6 of 12 (permalink) Old 09-15-2019, 03:49 PM Thread Starter
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Thanks for FOR REPLY'S i did put a o-ring under the seat i dont think there is any removable seat where the needle goes so far so good not leaking hope it stays that way .anyone else have a bad gas tank mine broke where the polaris emblem goes tried to fix it ut no go so now i have a remote tank
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post #7 of 12 (permalink) Old 09-15-2019, 04:03 PM
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You should be able to find a used one on Ebay or Powersportsnation.com. Both are good places for used parts.

Mine: 2018 Sportsman 850SP - 26" Bear Claw HTRs on OEM steel wheels(I really don't like the Aluminum ones)
Polaris Hand warmers, Mirrors.
Hers: 2019 Sportsman 450. 26" Bear Claw HTRs on Moose 427X Wheels.

2007 Sportsman 500 EFI, Polaris Winch, 25" Bear Claws QSC Clutch Kit, Hand Warmers
2001 Magnum 325 MOSE 12" rear wheel conversion. 25" Sedona Coyote tires
2017 Polaris Ranger 1000XP - Roof and front glass
2018 Kawasaki KLR650
2001 Magnum 325 Warn winch and Moose 60" plow-Sent to Daughter and Son-In-Law since his blew up
SOLD 2004 Sportsman 600 Twin
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post #8 of 12 (permalink) Old 09-15-2019, 04:05 PM Thread Starter
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Quote:
Originally Posted by stave7119 View Post
You should be able to find a used one on Ebay or Powersportsnation.com. Both are good places for used parts.
Yes i have seen them but to pricey seen them for over $200 us and i wonder if they will have the same issue
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post #9 of 12 (permalink) Old 09-16-2019, 07:24 AM
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If you have the original carb, the float needle seat screwed into the carb body and was sealed with a paper or aluminum washer - I can't imagine where you put an o-ring - the only o-ring in the entire carb was as a seal for the main jet quick access cap on the bottom of the float bowl

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Last edited by latebird; 09-16-2019 at 07:26 AM.
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post #10 of 12 (permalink) Old 09-18-2019, 02:32 PM
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Does your float float?
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