Think I've already heat seized new engine??

robe said:
Check the spark plug. Dark is rich, light is lean, tan is perfect. What fuel oil mix are you using? Don't be afraid to use at least 25:1 at the beginning.
The first one I made the mistake of running 40:1. Bad idea. It would heat up pretty fast. I changed that to 30:1 on the good advice from this site and really should have used even more oil.
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Yes I originally put 40:1 and it soiled spark plugs but now running 20:1 it starts and runs great and then all of a sudden loses power and dies and then needs to be started up I will check spark plug Tommorow won't be surprised if it's completely dark I also have no idle screw in carb and used a normal screw to replace it if that would also be an issue
 
ITZRIL3Y said:
Yes I originally put 40:1 and it soiled spark plugs but now running 20:1 it starts and runs great and then all of a sudden loses power and dies and then needs to be started up I will check spark plug Tommorow won't be surprised if it's completely dark I also have no idle screw in carb and used a normal screw to replace it if that would also be an issue
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How long approx (time or miles) did you run with 40 to 1?
 
ITZRIL3Y said:
Until I put 20:1
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But when having some issues with spark didn't realise there was a fuel issue so I was using petrol in the spark hole to get it started for a bit until I realised there was no fuel in the bowl so fixed that issue but now having these problems
 

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