2 Stroke, No Smoke at Idle/Cold Start

This topic has 4 replies, 3 voices, and was last updated 9 years, 5 months ago by Walt Gifford.

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- March 9, 2017 at 7:11 pm #79071
  
  J.C. Peterson
  Participant
  
  Seems like you’re running a lot of oil. I have always run 32:1 with Motul 2T. Jetting will definitely vary depending upon elevation and temperature, but below is what I have run on my Stock Moto Honda at sea level and 60-70 degrees F.
  
  Pilot jet – 58
  
  Main jet – 178
  
  Needle – Middle
- March 11, 2017 at 9:14 am #79118
  
  Anthony Herpolsheimer
  Participant
  
  One of the guys I run with recommended that mixture. He’s been racing for a long time, and really fast on the track. Usually either first or second in his class. I tend to listen to what he says. I always forget to ask him about the no smoke issue I have, and when I see him next I’ll be sure to bring it up.
  
  But with the heavier oil mix, it seems like I should be seeing more smoke than I do. I’ll get access to my notes and carb tomorrow and report back what I find out.
- March 11, 2017 at 6:14 pm #79142
  
  J.C. Peterson
  Participant
  
  Understood. The settings I mentioned are straight for Swedetech, however.
- March 12, 2017 at 7:58 am #79149
  
  Walt Gifford
  Participant
  
  Maybe they oil down their engines when they’re done racing.
  Maybe it’s the way they shut down. If you rev it then cut it quick it will not load up with oil, if you let it wind down slow and die it will have a bunch of oil in it on start up.
  
  Can you keep pace with them? Maybe they have to be richer because they’re pushing hard.
  
  BTW, Klotz Super Techniplate is 20% castor.
  
  Gif
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