Kogafortwo
ArboristSite Guru
I am restarting this thread since I put in about 8 hours labor on my blower. My old BG72 blower quit on me and since then, partly based on what y'all told me on this forum, this is what I did:
- rebuilt the carb AGAIN, this time I soaked it in Coleman fuel and got the welsch plug out, blew all the passages clean
- set the low and high mixture screws one turn out and also tried plus/minus another half turn
- all gaskets from motor back to air box are new
- fuel lines and pickup are new, tank is not cracked or anything
- exhaust cleaned out, screen is clean
- piston, cylinder, and rings look good, feels like plenty of compression on pulling
- scrubbed the block good with Coleman and a toothbrush, could not see any leaks or gasket problems by looking at them
- jug screws are good and tight
- coil was set to one business card width from magnets on flywheel, spark is good, plug is good
- I gave the blower some lovin' and cleaned it up to look like new, no part was left unwashed
So, I reassembled it and gassed it up with fresh 50:1 mix and it does the same thing as before: about 30 pulls and it will rev up to full RPM, then run up and down in RPM for about 30 seconds until it dies. :bang:
I am almost ready to spend the $140 on a new BG55, but I want to give it one last chance. What gives?
- rebuilt the carb AGAIN, this time I soaked it in Coleman fuel and got the welsch plug out, blew all the passages clean
- set the low and high mixture screws one turn out and also tried plus/minus another half turn
- all gaskets from motor back to air box are new
- fuel lines and pickup are new, tank is not cracked or anything
- exhaust cleaned out, screen is clean
- piston, cylinder, and rings look good, feels like plenty of compression on pulling
- scrubbed the block good with Coleman and a toothbrush, could not see any leaks or gasket problems by looking at them
- jug screws are good and tight
- coil was set to one business card width from magnets on flywheel, spark is good, plug is good
- I gave the blower some lovin' and cleaned it up to look like new, no part was left unwashed
So, I reassembled it and gassed it up with fresh 50:1 mix and it does the same thing as before: about 30 pulls and it will rev up to full RPM, then run up and down in RPM for about 30 seconds until it dies. :bang:
I am almost ready to spend the $140 on a new BG55, but I want to give it one last chance. What gives?
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