I have a chainsaw with a 28cc 2 stroke engine and a pull cord start. it's always been a bit tempremental to start but now refuses completely apart from a few pop-pop-pops. Fuel is fresh and correct mixture. Plug gives spark and there is vapour in the cylinder head when plug removed. Any ideas ??
2007-01-01 22:35:05 · 8 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
Thanks for all the advice. Iwon't have time to try it out until Sat 13th Jan but I'll let you know how it turned out. Cheers
2007-01-07 20:44:29 · update #1
Make sure u are using choke to start, A few other things to check is the Fuel filter and Air filter, also if its not been used for a while the fuel/oil mix can evaporate leaving a sticky, gungy, oily mess in the carb that will need to be cleaned out.
2007-01-01 23:00:27 · answer #1 · answered by uk_staffie 7 · 0⤊ 0⤋
Be sure the air filter is clean. If it's dirty, the mix will be way too rich to fire. The advice to squirt oil in the cylinder is good, in case compression is the issue.
Two strokes are so simple...that when they don't start there is not much to mess with! There is no real timing to adjust, no valves...if you have spark, the carb is about all that is left. Take the plug out, yank it a few times to clear the cylinder, dry the plug and put it back. Look at your mixture adjustment, you have two screws...one for idle and one for mix (high speed running) set them at the recommended baseline...usually something like all the way in, and 1 or 2 turns out, etc...should be in your manual.
2007-01-02 07:49:58 · answer #2 · answered by roadlessgraveled 4 · 0⤊ 0⤋
Providing the plug is OK, I start my 2 stroke mower by removing the plug and spraying some anti-rust spray in the cyl, put plug back in and it starts first time. Anything that is flammable can be used to spray in the cylinder, but not to much.
2007-01-02 06:47:20 · answer #3 · answered by jefdjif 2 · 0⤊ 0⤋
Having explored every other option, how old is the fuel? Petrol does go stale, especially in an intermittent use item like a chain saw.
2007-01-03 04:06:43 · answer #4 · answered by johncob 5 · 0⤊ 0⤋
you might need to adjust the idle on the saw this requires a small philips or flat head and is located usualy right behind the brake of the saw. there should be a + & - sign try turning the idle up +
2007-01-07 16:21:52 · answer #5 · answered by Big C 2 · 0⤊ 0⤋
Check the gap on your plug.
2007-01-02 06:37:58 · answer #6 · answered by legend 3 · 0⤊ 0⤋
try to get your hands on a mini bunsen burner(or if you have a teenager get them to ''borrow'' one from school) to warm head up first. sounds like it needs a proper service(£50) as the piston rings sounds like its going.
2007-01-07 16:39:24 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Could be the timing.
2007-01-02 06:47:03 · answer #8 · answered by Anonymous · 0⤊ 0⤋