Go Back   ScootDawg Forums > Performance :: Maintenance :: Technical > 50cc - 124cc
Reply
 
Thread Tools Search this Thread Display Modes
Old 10-11-2013, 01:17 AM   #1
mopedhi   mopedhi is offline
 
Join Date: Jan 2013
Posts: 31
what does soft seized sound and feel like?

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



Login or Register to Remove Ads
  Reply With Quote
Old 10-11-2013, 03:14 PM   #2
teddy554   teddy554 is offline
 
teddy554's Avatar
 
Join Date: Sep 2011
Location: staunton va
Posts: 319
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
__________________

2010 Cpi Oliver 70cc, naruku trans kit, downhill handle bars, tecnigas rsll pipe, s6 4g rollers, Vento R4 with 90cc 1e52qmf technigas next r 100cc pipe Naruku, 21mm race carb, s6 4.5 g rollers
  Reply With Quote
Old 10-12-2013, 01:00 AM   #3
prodigit   prodigit is offline
 
Join Date: Jul 2012
Location: Miami, FL
Posts: 383
From what teddy explains, could it feel like while riding you just flick the engine kill switch?
__________________





Login or Register to Remove Ads
  Reply With Quote
Old 10-12-2013, 02:17 AM   #4
skuttadawg   skuttadawg is offline
 
Join Date: Jul 2011
Posts: 127
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
  Reply With Quote
Old 10-12-2013, 02:46 AM   #5
mopedhi   mopedhi is offline
 
Join Date: Jan 2013
Posts: 31
Quote:
Originally Posted by skuttadawg View Post
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
yea 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



Login or Register to Remove Ads
  Reply With Quote
Old 10-12-2013, 02:58 AM   #6
skuttadawg   skuttadawg is offline
 
Join Date: Jul 2011
Posts: 127
50 or 70cc ? Who told you to use 40 to 1 ?
  Reply With Quote
Old 10-12-2013, 03:19 AM   #7
mopedhi   mopedhi is offline
 
Join Date: Jan 2013
Posts: 31
70cc, someone from a local forum said 40:1 for 70cc kit
  Reply With Quote
Old 10-12-2013, 03:28 AM   #8
skuttadawg   skuttadawg is offline
 
Join Date: Jul 2011
Posts: 127
Its old but here is some premix info http://www.bridgestonemotorcycle.com...oilpremix6.pdf I used 50 to 1 in my pedal mopeds
  Reply With Quote
Old 10-14-2013, 08:56 PM   #9
prodigit   prodigit is offline
 
Join Date: Jul 2012
Location: Miami, FL
Posts: 383
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.
__________________


  Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:13 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.