S25 - Barrett Small Engine

S25 Gas Saw Page 1 of 9CARBURETOR WT-83 BREAKDOWN

Ref # Part Number Qty Description1 530035006 Valve Throttle2 530035015 Throttle Valve Screw3 530035034 Throttle Shaft Ass'y.4 530035171 Low Speed Mixture Needle5 530035024 Throttle Return Spring6 530035023 Low Speed Mixture Needle Spring7 530035167 High Speed Mixture Needle Spring8 530035169 High Speed Mixture Needle9 530035162 Plug-5/16 Dia. Welch Included in Carburetor Kwik RepairKit.10 530035163 Plug-1/4 Dia. Welch Included in Carburetor Kwik Repair Kit.11 530035017 S25 Gas Saw Pump Page Cover 2 Screw of 912 530035159 CARBURETOR Fuel WT-83 Pump Cover BREAKDOWN13 530035164 Fuel Pump Gasket14 530035166 Fuel Pump Diaphragm15 530035027 Fuel Inlet Screen Included in Carburetor Kwik Repair Kit.16 530035035 Idle Speed Adjusting Screw17 530035168 Spring-Idle Speed Adjusting Screw18 530035007 Throttle Retainer Ring19 530035106 Inlet Needle Valve Included in Carburetor Kwik Repair Kit.20 530035188 Metering Lever Spring Included in Carburetor Kwik RepairKit.21 530035031 Metering Lever Included in Carburetor Kwik Repair Kit.22 530035028 Metering Lever Pin Included in Carburetor Kwik Repair Kit.23 530035016 Screw-Metering Lever Pin Included in Carburetor KwikRepair Kit.24 530035165 Metering Diaphragm Gasket25 530035014 Metering Diaphragm26 530035003 Metering Diaphragm Cover27 530035021 Metering Cover Screw Ass'y.28 530035161 Carb. Repair Kit29 530035173 Carb. Gasket/Diaphragm Kit

S25 Gas Saw Page 3 of 9EXTERNAL POWER UNIT

Ref # Part Number Qty Description1 530015183 Screw2 530023864 Guide Plate3 530015149 Washer4 530015128 Screw5 530039141 Ignition Module (Incl. 7-10)6 530015126 Flywheel Key7 530039168 Lead Stop Switch8 530039026 High Tension Lead (Bulk No. 8141)9 530039071 Connector Spring Plug10 530039097 Spark Plug Boot11 530011198 Bar Clamp12 530047198 Flywheel Ass'y.13 530047198 S25 Gas Saw Starter Page Dog 4 Spring of 914 530626605 EXTERNAL Nut POWER UNIT15 530015127 Washer16 530001724 Screw17 530015123 Washer18 530069289 Starter Pulley19 530042023 Starter Spring20 530022079 Clutch Spider21 530023381 Clutch Springs22 530023379 Clutch Shoes23 530023382 Clutch Plate24 530069301 Drum & Sprocket Ass'y.25 530015074 Screw26 530011243 Fan Housing27 952044368 14" Sprocket Nose27 952044369 16" Sprocket Nose28 952051209 14" (P101S-52)28 952051211 16" (P101S-56)29 530023519 Clutch Washer30 530069232 Rope Kit31 530037485 Starter Handle32 530015122 Screw33 530031017 Bar Wrench34 952069259 Chain Brake Kit35 530052073 Chain Repair Kit36 530016080 Screw37 530011243 Air Inlet Baffle38 530015241 Screw39 530061047 Carton (Not a serviceable part) Not Shown.40 530014095 14" Not Shown.40 530014096 16" Not Shown.41 530067169 Operator Manual Not Shown.42 530027927 14" Decal (Not a serviceable part) Not Shown.42 530027928 16" Not Shown.

S25 Gas Saw Page 5 of 9HANDLE HOUSING

Ref # Part Number Qty Description1 530010123 Fuel Cap Ass'y.2 530012259 Fuel Tank Top3 530019047 Fuel Tank Gasket Included in Gasket Set.4 530012260 Fuel Tank Bottom5 530015138 Screw6 530015509 Screw7 530015037 Screw8 530024049 Handguard Cap9 530022310 Front Handlebar10 530024089 Handguard11 530015151 Washer12 530001648 Screw13 530023573 S25 Gas Saw Start/Stop Page Switch 6 of 914 530014199 HANDLE HOUSING Fuel Pick-up Ass'y.15 530015152 Screw16 530011147 Cylinder Shield17 530001709 Screw18 530023376 Choke Knob19 530011558 Carburetor Cover20 530019055 Carb. Cover Gasket21 530015239 Screw22 530015247 Screw23 530069216 Line Kit (Bulk 8133)24 530015476 Screw25 530015144 Screw26 530015147 Wave Washer27 530023876 Choke Lever28 530015407 Screw29 530024111 Handle Grip30 530023362 Oil Pump Button31 530024672 Trigger32 530023373 Throttle Wire Boot33 530001636 Screw34 530023361 Oil Pump Push Rod35 530069023 Engine Gasket Kit36 530015146 Wave Washer37 530023841 Choke Shutter38 530035265 Carburetor39 530019045 Carb. Gasket40 530023872 Spacer41 530015145 Trigger Pin42 530023372 Throttle Rod43 530023366 Reed44 530023367 Washer45 530015139 Screw46 530015257 Screw47 530015256 Screw48 530023369 Air Filter49 530011548 Handle & Carb. Hsg.50 530023388 Dust Seal51 530026849 Handguard Decal52 530027939 Instruction Decal

S25 Gas Saw Page 7 of 9INTERNAL POWER UNIT

Ref # Part Number Qty Description1 530015135 Nut2 530015134 Screw3 530023492 Bar Adjusting Pin4 530023387 Spur (Optional)5 530015539 Screw6 530015136 Screw7 530010223 Crankcase Ass'y. (Incl. 1,2,3,16,28-30,&38)8 530022077 Connecting Rod Ass'y. (Incl. 9 & 12)9 530001723 Screw10 530015131 Piston Pin Retainer11 530032019 Crankpin Rollers12 530032018 Piston Pin Bearing13 530015189 S25 Gas Saw ScrewPage 8 of 914 530026729 INTERNAL POWER Muffler Cover UNIT15 530019049 Gasket Included in Gasket Set.16 530019044 Crankcase Gasket Included in Gasket Set.17 530023485 Piston Rings18 530015657 Muffler Spacer19 530023591 Muffler Baffle20 530023592 Muffler Screen21 530001709 Screw22 530026731 Muffler Body23 530069298 Piston Ass'y. (Incl.10)24 530026730 Muffler Shield25 530022173 Crankshaft26 530015126 Flywheel Key27 530023354 Crankcase Washer28 530032021 Bearing29 530019051 Seal Included in Gasket Set.30 530069185 Oil Vent Pin31 530002615 Discharge Line Fit ting32 530002464 Ferrule 1/8" Tubing33 530021013 Discharge Line-Oil Pump (Bulk 8115)34 530023874 Oil Cap (Incl. O Ring w/Retainer)35 530019043 Cylinder Gasket Included in Gasket Set.36 530001952 O-Ring37 530001642 Cylinder Washer38 530001674 Cylinder Studs39 530019054 Oil Pump Body Gasket Included in Gasket Set.40 530010178 Oil Pump Body41 530023698 Pump Body Filter Included in Gasket Set.42 530023699 Diaphragm Spring43 530001660 Nut44 530002589 Oil Pick-up Weight45 530021012 Oil Line (Bulk 8132)46 530023148 Oil Pump Intake Valve47 530024677 Oil Line Protector Spring48 952030037 Spark Plug49 530012072 Cylinder50 530023356 Oil Pump Cap51 530023357 Oil Pump Plunger52 530019029 Quad Ring Plunger Included in Gasket Set.53 530023358 Oil Pump Spring54 530022124 Diaphragm Ass'y.55 530015114 Screw56 530010177 Pump Ass'y.

Ref # Part Number Qty Description57 530015137 Screw58 530019053 Pump Body Cover Gasket Included in Gasket Set.59 530011163 Oil Pump Ass'y. CoverS25 Gas Saw Page 9 of 9INTERNAL POWER UNIT