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fires right up but will not blow hard and then it dies. put new plug filter cleaned fuel line and crab. shop said the valves may need to be adjusted anyone know how to adjust them?fires right up but will not blow hard and then it dies. put new plug filter cleaned fuel line and crab. shop said the valves may need to be adjusted anyone know how to adjust them?
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I am a Makita dealer and service center and I cannot find a Makita tool with the model number BHP453. They do make a BHP452 and BHP454. If you go to the Makita website at www.makitatools.com and put BHP45 in the search box you can get the manuals and breakdowns for those tools and see if they match what you have.
Plunger inside the regulator could be stuck or adjustment knob stripped. Let the air out of the tank and take the regulator apart, lube with light grease (no kit available for this reg.). The factory part is expensive so replace (if needed) with generic, careful with size however because there is not much room under the panel and between the gauges . Easy temporary fix. Remove the safety pop valve and install a tee (or check under the pressure switch for spare port) re- install pop valve on the tee fitting. On the second port of tee fitting install a quick connect valve for full pressure. Generic regulator is sold at Lowes that can be installed on the temporary port.
You provide no manual, I chose a "DCS34" a link follows: http://www.makita.ca/data/upload/tools/DCS34%20F-E.pdf
It lists no starting point for the "H" and "L" needle valves, I recommend 1.5 CCW from lightly seated. then tune for performance like this: Carburetor Adjustment by Madsens.com http://www.madsens1.com/saw%20carb%20tune.htm CW is leaner; to lean will destroy the saw. If over tightened closed (CW) the adjustment screw faces are easily marred; marred adjustments are difficult to impossible to set properly. Clean the air filter and spark arrestor; adjusting with a dirty filter can cause a run lean condition once cleaned and the saw run. If the saw cannot exhale it cannot inhale. There are 2 wav (sound - idle & full – may not be highlighted) files that I find most helpful, I think you will too.
If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH Lou
fires right up but will not blow hard and then it dies. put new plug filter cleaned fuel line and crab. shop said the valves may need to be adjusted anyone know how to adjust them?
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