1989 trail boss 250 carb problem
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1989 trail boss 250 carb problem
Did you just check or did you replace needle and seat? If seat egg shaped or wear marks visible inside, Usually the main problem for carb puking gas! Easy way to check float level is when carb upside down,WITH float needle COMPRESSED,float should be LEVEL with carb body. Is carb vent tube on right side of carb open and not burnt from touching exhaust? Have had a few of these. 1 1/2-2 turns out on air/fuel screw. IS compression at least 100 psi also?
#5
1989 trail boss 250 carb problem
i have rebuilt the whole thing from jets to floats would you have a repair manual or a place on line where i could find specs and repair info and i was also wondering if its posible to remove oil pump and just make a plate that would go over it because my fuel pump recently gave in and i had to rebuild the engine.
#6
1989 trail boss 250 carb problem
Oil pumps USUALLY pretty durable, have had a lot of people blame pump for worn pistons or seizures,But any thing possible! Clymer or Haynes manuals available. Can check pump if you get carb problem resolved by premixing tank of gas 50-1 ratio,bleed pump,hold pump arm ALL the way up at idle,disconnect oil line at cylinder base, should have small amount of oil coming out,IF does then pump ok. If determined to premix,can make a block off plate and gasket to cover pump area and also MUST block off small oil inlet at base of cylinder! PS you said "fuel" pump gave out, I'm sure you MEANT to say oil pump! Good luck
#7
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Basically you can interchange different year model carbs on the 250,but the main jet size might be tad different between year models. Here's the models that work with your 89 carb and it goes up to a 91 so really no problem using a 93 carb.
Usage : 3130383 Carburetor
Year Product Model Assembly
1991 ATV BIG BOSS 6X6 CARBURETOR ASSEMBLY 6X6 (4919811981046A)
1990 ATV TRAIL BOSS 250 Carburetor Assembly (4917711771036A)
1990 ATV TRAIL BOSS 2X4 Carburetor Assembly (4917721772035A)
1990 ATV TRAIL BOSS 4X4 Carburetor Assembly (4917731773044A)
1990 ATV BIG BOSS 4X6 Carburetor Assembly (4917741774039A)
1990 ATV TRAIL BLAZER Carburetor Assembly (4918411841035A)
1989 ATV Big Boss 4x6 Carburetor Assembly (4915951595039A)
1989 ATV TRAIL BOSS Carburetor Assembly (4916331633034A)
1989 ATV TRAIL BOSS 2X4 Carburetor Assembly (4916341634035A)
1989 ATV TRAIL BOSS 4X4 Carburetor Assembly (4916351635046A)
1989 ATV BIG BOSS 4X6 Carburetor Assembly (4916361636039A)
1989 ATV BIG BOSS Carburetor Assembly (4916361636039A)
1988 ATV TRAIL BOSS 4X4 Carburetor Assembly (4914761476041A)
1988 ATV TRAIL BOSS 2X4 Carburetor Assembly (4914771477035A)
1987 ATV TRAIL BOSS Carburetor Assembly (4913491349034A)
1987 ATV TRAIL BOSS 4X4 Carburetor Assembly (4913511351041A)
1987 ATV TRAIL BOSS 4X4 Carburetor Assembly (4913521352041A)
1987 ATV TRAIL BOSS 4X4 Carburetor Assembly (49147514750041)
1986 ATV SCRAMBLER Carburetor Assembly (4911991199048A)
1986 ATV TRAIL BOSS Carburetor Assembly (4911991199048A)
Usage : 3130383 Carburetor
Year Product Model Assembly
1991 ATV BIG BOSS 6X6 CARBURETOR ASSEMBLY 6X6 (4919811981046A)
1990 ATV TRAIL BOSS 250 Carburetor Assembly (4917711771036A)
1990 ATV TRAIL BOSS 2X4 Carburetor Assembly (4917721772035A)
1990 ATV TRAIL BOSS 4X4 Carburetor Assembly (4917731773044A)
1990 ATV BIG BOSS 4X6 Carburetor Assembly (4917741774039A)
1990 ATV TRAIL BLAZER Carburetor Assembly (4918411841035A)
1989 ATV Big Boss 4x6 Carburetor Assembly (4915951595039A)
1989 ATV TRAIL BOSS Carburetor Assembly (4916331633034A)
1989 ATV TRAIL BOSS 2X4 Carburetor Assembly (4916341634035A)
1989 ATV TRAIL BOSS 4X4 Carburetor Assembly (4916351635046A)
1989 ATV BIG BOSS 4X6 Carburetor Assembly (4916361636039A)
1989 ATV BIG BOSS Carburetor Assembly (4916361636039A)
1988 ATV TRAIL BOSS 4X4 Carburetor Assembly (4914761476041A)
1988 ATV TRAIL BOSS 2X4 Carburetor Assembly (4914771477035A)
1987 ATV TRAIL BOSS Carburetor Assembly (4913491349034A)
1987 ATV TRAIL BOSS 4X4 Carburetor Assembly (4913511351041A)
1987 ATV TRAIL BOSS 4X4 Carburetor Assembly (4913521352041A)
1987 ATV TRAIL BOSS 4X4 Carburetor Assembly (49147514750041)
1986 ATV SCRAMBLER Carburetor Assembly (4911991199048A)
1986 ATV TRAIL BOSS Carburetor Assembly (4911991199048A)