what does soft seized sound and feel like?

[mopedhi]

today my vento 2 stroke stopped for no reason while i was cruzin
when i started it up and revving it i noticed there was no smoke from the exhaust

[teddy554]

it kind of bogs down until shuts off, loses all power and sounds way different then normal, just cutting off aint soft seizing and lack off oil will cause a soft but going by the sight of smoke from the pipe isn't 100 percent either, neither of my 2t smoke from the pipe

[prodigit]

From what teddy explains, could it feel like while riding you just flick the engine kill switch?

[skuttadawg]

I had a bad seize and it locked up the rear tire . I had it softseize twice on another engine but it fired up after it cooled no problem . Soft seize is when your running too lean like too small of a main jet or too much oil . Pull out yoursparkplug and compare it to this chart to get an idea on how the jetting is http://www.4secondsflat.com/plug_chart.html

Oil pump adjustment to avoid a soft seize http://49ccscoot.proboards.com/thread/3151

[mopedhi]

I had a bad seize and it locked up the rear tire . I had it softseize twice on another engine but it fired up after it cooled no problem . Soft seize is when your running too lean like too small of a main jet or too much oil . Pull out yoursparkplug and compare it to this chart to get an idea on how the jetting is http://www.4secondsflat.com/plug_chart.html

Oil pump adjustment to avoid a soft seize http://49ccscoot.proboards.com/thread/3151yea my rear wheel locked up too, i premix 40:1 since the oil pump is broken

using stock airbox, 85 main jet, it did fire up after a few seconds

[skuttadawg]

50 or 70cc ? Who told you to use 40 to 1 ?

[mopedhi]

70cc, someone from a local forum said 40:1 for 70cc kit

[skuttadawg]

Its old but here is some premix info http://www.bridgestonemotorcycle.com/documents/oilpremix6.pdf I used 50 to 1 in my pedal mopeds

[prodigit]

50:1 sometimes gives problems, I had the same oil for my mopeds.
They recommend 16:1, but in reality that's too much oil.
Most people use a 32:1 ratio. Using 50:1 generally causes more engine wear.