My tanaka chain saw wont idle and when i pull the gas trigger it quits or bogs down

carby idle adjustment or a carby kit and clean needed

carby has a high and a low rpm jets

STIHL MS 290, 310, 390

https://www.stihlusa.com/.../instructionmanuals/stihl-ms-290-310-390-owners-instructio...
Instruction Manual - improper use can cause serious or fatal injury. MS 290. Warning! ..... model. Safe use of a chainsaw involves. 1. the operator. 2. the saw.

Fresh air filter?

Chain adjusted too tight?
Chain Brake loaded with saw dust?

This could be several things..fuel filter in tank clogged, hole in fuel line, clogged carb., hole in carb. diaphram or leaking crank shaft seal under flywheel or chain sprocket,,,engine block acts as fuel pump..hope this helps

Before you do anything else i think you need to check the engine is mechanically sound, remove the muffler, take a look at the piston skirt through the open port, any signs of scuffing on the piston and it will require removing the cylinder to assess the damage, they are x torq engines, due to the way the air ports work they are quite prone to carboning in the piston rings, make sure it has plenty of compression.

The chain is driven by a gear.remove the cover of the chain,while the saw is idle,the chain is probably slipping off of the drive gear causing the chain to "lockdown",if this is your problem,that gear will have to be replaced.Any small engine repair shop in your neighborhood can perform this task for you.

Did you use "chain oil" or regular or mixing oil?

Check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for decay or other problems. The idle speed screw (turned CCW) will slow the engine down. Hope this helps!

Is the chain brake engaged? The brake lever should be in the back position. Toward the handle.

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There are two idle screws one high, and one low. Your high adjustment idle screw needs to be adjusted.