Lawnboy Duraforce 6 5. LawnBoy Gold Pro Series 10550 21" Easystride SP Lawn Mower 6.5 HP It has a Duraforce 6.5 HP motor silver series and runs great I read online that if the carb floods the cylinder, it would cause this issue..
LawnBoy Gold Pro Series 10550 21" Easystride SP Lawn Mower 6.5 HP from www.ecrater.com
It was a pre-Duraforce engine (4 or 4.5 hp, can't quite remember) Rated power is 6.5 (@ 2900 rpm) but some say if the carb is adjusted slightly it is closer to 7 hp (@2900 rpm).
LawnBoy Gold Pro Series 10550 21" Easystride SP Lawn Mower 6.5 HP
So I ordered up the Briggs & Stratton 42.5 Jet, part number 801308 My friend has a Lawnboy Duraforce 6.5 2 stroke lawnmower that is hard to pull the cord (turn over the engine) when we start the engine Sep 26, 2013 / Governor adjustment Lawn Boy 10323 Duraforce 6.5 #10 One trick I will add to this is, when I remove the Duraforce carb, I add a couple of 1/4-20 (I think they're 1/4-20, but they could be 5/16-18, I had some on-hand and use them) wingnuts onto the screws and finger tighten them, to keep the entire thing (including the heat shield.
LawnBoy Gold Pro Series 10550 21" Easystride SP Lawn Mower 6.5 HP. In 5 minutes that thing went from a sweet running piece of green machinery to a boat anchor I will be acquiring a Lawn Boy DuraForce Silver Pro 6.5 for $20.00 (not running) soon that will be my daily mower
LawnBoy Gold Pro Series 10550 21" Easystride SP Lawn Mower 6.5 HP. It was a pre-Duraforce engine (4 or 4.5 hp, can't quite remember) In general, dirt in a 2-stroke engine isn't good.moreso in them than in 4.