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Similar Topics
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By Dra O
posted a while back - it was running at one point - I have all the plastic shroud off - it's down to frame and engine now
-fuel pump: when line from petcock is attached, no fuel comes out other side to carb; the line to the carb is open (can blow through it); I thought when I cranked engine that the pump would spit out fuel on other side but it does not; I removed fuel pump and opened it up - diaphragm looks good - but internal areas had lotsa calcification build up - I cleaned this out and dried it good - the clear plastic pieces (?diaphragms) aren't broken - the spring w/ steel ball on end moves freely; am putting it back on tomorrow; but can anyone answer about the pump? isn't it supposed to pump fuel through it... to other side... to carb? puzzling
-along with fuel pump: I replaced petcock 3 weeks ago (gas tank had rusty fuel in bottom - cleaned it out prior to new petcock); when I turn petcock arrow NOT to on or reserve, fuel comes out of line; when I turn it to on or reserve, fuel doesn't come out; puzzling
-I don't know what's on back of fuel pump - it's a valve that has a hose coming out of it - looks like it goes to engine/carb - I haven't traced this out yet - what is it?
-can squirt gas on air filter and engine will run for 2-3 seconds then stop - fuel in top of carb (under diaphragm) does same
-it likely needs carb rebuild - will get to this - but something isn't allowing fuel to get from fuel pump to carb
-I THINK it has a mikuni model x carb - diaphragm is ID 26mm OD 68mm - hard to find inexpensive diaphragm, I guess because it's a model x
-last thing - I replaced solenoid due to old one clicking; I HAVE to be charging the battery or it won't start/turn over - battery just goes dead; but if charging, it'll turn over nicely; i'm guessing it's a bad battery
-any help appreciated - I've never owned an ATV before - inherited this beast from grandparent in-law
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By Dwight Williams
Ok, so I bought a 2006 bayou 250 for 200 bucks, kid couldn't start it and had no idea why it wouldn't run, I pulled the rope and felt what I thought was valve to piston contact, he wanted 500 and I talked him down to 200 and brought it home. Sure enough, timing was way far out, timing chain incredibly loose. So for fun I re-tensioned the timing chain and re timed it, got about 120lbs of compression, pretty low. I cannot get the chain very tight but the the tensioner seems to work fine, the chain guides don't look very worn. Also, when I took the head off the valves don't look bent and the piston has no discernible marks on it. Is this an interference engine? I sure thought I felt some contact with the pull rope but maybe no permanent damage was done? Anyway, I plan on doing a full top end job as well as timing chain tensioners and hopefully that'll cure it. Is there any reason other than chain stretch (I measured it and it's ok) or guide wear that would cause the chain to be so loose? Thanks!
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By Andrew Baker
I need help with wiring on a 1998 (I think, 10th digit of the VIN was W) Bayou. I'm not getting spark, I'm pretty sure it is due to grounds being off because the harness is pretty hacked as far as the electric start and charging system goes. I'm needing a good wiring schematic. I found one online and there are a few things that don't add up on it so I'm skeptical that it is really for my year and model. Any help would be appreciated. Thanks.
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By Nick Brooks
Working on a 2002 Quest 500 and the grommets in the tank are rock hard and leak. Any tips on replacing without having to pull the tank, hands are too big to get to the bottom gromment which is the worst one.
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By bradleyheathhays
I'm outfitting my middle aged '02 Taurus with a new starter and need some advice on what brand starter to get. I'm tempted to get this reman Motorcraft, the fourth one down in the orange remanufactured section.
CLICK HERE
For $123 that seems reasonable for a OE reman. If not this one I'll probably be going for a reman of another brand so why not go OE?
The other reman options I'm seeing at the car stores are...
Napa brand
Bosch
Denso
Driveworks at Advance
Carquest
Duralast
Valucraft
Ultima
Bestest
Should I go with the Motorcraft or one of these? $123 sounds almost too good although I really don't know.
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Similar Tagged Content
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By colin james
View File 1996-1998 Polaris Big Boss 6x6 Service Manual
This is the factory service manual for the Polaris big boss and other ATVs for the years 1996/1997/1998. You can download sections that you need or just download them all for the complete manual
Submitter colin james Submitted 05/02/2019 Category Polaris ATV
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By colin james
This is the factory service manual for the Polaris big boss and other ATVs for the years 1996/1997/1998. You can download sections that you need or just download them all for the complete manual
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By colin james
View File 1985-1995 Polaris ATV Service Manual
This is the service manual for 1985-1995 Polaris ATVs. Download all the chapters for the complete manual.
Includes the following Polaris ATV models:
Scrambler, Trail Boss, Cyclone, Big Boss, 250, 350, 400, Sportsman, Trail Blazer, Sport, & Magnum.
Submitter colin james Submitted 11/25/2018 Category Polaris ATV
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By colin james
This is the service manual for 1985-1995 Polaris ATVs. Download all the chapters for the complete manual.
Includes the following Polaris ATV models:
Scrambler, Trail Boss, Cyclone, Big Boss, 250, 350, 400, Sportsman, Trail Blazer, Sport, & Magnum.
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By colin james
View File Polaris 1999-2000 Multiple Models ATV Service Manual
This is the service manual for multiple models of polaris atvs from 1999 to 2000
Model Specifications (1999)
Trail Blazer
Trail Boss
Xpress 300
Xplorer 300
Sportsman 335
Sport 400
Scrambler 400
Xplorer 400
Scrambler 500
Magnum 500
Sportsman 500
Big Boss 500 6x6
Model Specifications (2000)
Trail Blazer
Xplorer 4x4
Trail Boss 325
Magnum 325 (01 Engine)
Magnum 325 (04/05 Engine)
Xpedition 325
Sportsman 335
Xplorer 400
Scrambler 400 2x4
Scrambler 400 4x4
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Magnum 500
Scrambler 500
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Sportsman 6x6
Submitter colin james Submitted 10/19/2018 Category Polaris ATV
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