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Stihl MS 290 Workshop Manual Download

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Stihl ms 290 service manual for repairs to all Stihl ms 290 chainsaws, view this PDF on all devices, clear diagrams and accurate information to repair and diagnose your chainsaw, Free PDF download available here.

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Product Description

Stihl ms 290 Chainsaw Repair

Stihl ms 290 service manual to service and repair your Stihl ms 290 chainsaw. These manuals contain photos and diagrams as used by professional mechanics and repair shops to troubleshoot, service and repair your chainsaw. The manuals have plenty of pictures and diagrams to make the entire repair process easy for you.

Contents Of Stihl ms 290 service manual

Introduction, Specifications, Troubleshooting, Attachments, Clutch, Chain Brake, Engine, Ignition, Starter, Servicing, Controls, Fuel System, Special Tools

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MS 290 Specifications

Mid-Range Use
DISPLACEMENT 56.cc (3.45 cu. in.)
ENGINE POWER 2.8 kW (3.8 bhp)
POWERHEAD WEIGHT 5.9 kg (13.0 lbs.)
GUIDE BAR LENGTHS* (Recommended ranges) 40 to 50 cm (16″ to 20″)

Idle Speed/Throttle Stop – This is the adjustment that controls how much the throttle valve (butterfly) stays open when the throttle trigger is released. If this adjustment is set too low, the engine will die when the throttle trigger is released. If this adjustment is set too high, the high idle speed will cause the centrifugal clutch to engage and the chain will run. This is a dangerous condition.
Low Speed Fuel Adjustment – This is the adjustment that controls the proportion of fuel in the air/fuel mixture at idle speed. An adjustment that is too rich will cause the engine to load up and die at idle speed. A mixture that is too lean will starve the engine and cause it to race or surge. An extremely lean adjustment will cause the engine to die, too.
High Speed Fuel Adjustment – This is the adjustment that controls the proportion of fuel in the air/fuel mixture at cutting speed. It would not be accurate to say this is the most important setting, because all of these adjustments need to be accurate for a saw to perform its best, but this is the adjustment that determines how the saw runs in the cut. An adjustment that is set too rich will not allow the saw to reach the RPM level necessary to build maximum power. Throttle response may also be sluggish and the engine will smoke and perform poorly. A mixture that is too lean will allow the engine to reach an RPM level where bearing failure and cylinder seizure are likely. It will also lack power in the cut and tend to run very hot.

Stihl ms 290 Service Manual Diagrams