Just got it at a yard sell it will start but only run for a few moments the dies out cleaned the carb noticed both screws are set at 1 and a half turns out.anyone know about where the high and low screws should be set for a good starting point?
Sounds like a fuel problem I would look at getting a new fuel filter. You have the carb set right. That's what I have mine set at.. Good luck
SOURCE: poulan pro bvm200 leaf blower/vac won't run on high
Is the exhaust spark arresor screen clean? a blocked exhaust will do this.
SOURCE: Poulan leaf blower bv1850 Runs greate for about
Most likely low compression caused by stuck piston rings or a scored piston and cylinder. This unit was made by Poulan and they have had an epidemic of this problem. The solution is to tear the unit down and put in new piston rings. Before you install the new rings you need to get a sheet of glass and some 600 grit wet dry sand paper. Sand each ring down about .002 to .003 and reinstall. This should solve your problem as long as you have good fire and the piston and cylinder is not scored.
SOURCE: BX 90 homelite leaf blower two idle screws
The initial setting is 1 1/2 turns out. Screw them all the way in and them turn them 1 1/2 turns out. This is the starting position and should start, it may need some final adjustments to run like you need it to run.
Remember more the screw is out the more fuel it will get.
Good Day.
SOURCE: leaf blower starts and runns ok for few mins then
Target your inspection towards the 'spark arrestor screen' in the outlet of the muffler.
Overfuel or 'rich' condition
Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark
2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check Air filter for fuel saturation
4) Allow engine to run for 5 minutes to excess fuel from muffler
5) Fuel mixture ratio: Make sure the oil mix is per your manufactures recommendations
6) If after the above the engine is still smoking and blubbering:
Adjust carb mixture screws to a 'less rich' setting
*NOTE: only move mixture screws 1/8 of a turn at a time,
and try operation before any more adjustment
I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae
Testimonial: " this solution sure did work ,, had to clean the screen and muffer out too , was a build up of carbon there. was very helpful "
SOURCE: yard broom leaf blower will not stay running I
It seems that the carb is not getting fuel. It could be a cracked fuel line. The fuel priming bulb could also be cracked/dry rotted. Possibly the fuel pump in the carb is bad. The carb is rather intricate and not something anyone without training should try to repair. The overhaul kit will cost $15 to $20. I suggest you take the blower to a repair shop.
Testimonial: "Thanks will do"
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