I'll take yous through a step by step of what i've done:
- Tipped mower over for about 20 min to replace back wheels. 20 min on each side
- Mower was then left on its wheels while being serviced
- Cleaned fuel tank
- Cleaned carb
- New diaphragm
- Oil was extracted and replaced to the max and not over
- Mower was ran for a while, smoke cleared to a point where it wasn's smoking out my garden
- Cut lawn no issues
- 2 Days later, start it and it puffs big clouds of blue smoke out and continues to smoke
- Oil is now dark grey and smells a bit like petrol
I bought the mower as spares but was listed as only needing a back wheel as it had broken, so I don't know the condition of the internals. I can only assume that the piston rings are worn, so its letting oil past the top of the piston and burning it.
- Tipped mower over for about 20 min to replace back wheels. 20 min on each side
- Mower was then left on its wheels while being serviced
- Cleaned fuel tank
- Cleaned carb
- New diaphragm
- Oil was extracted and replaced to the max and not over
- Mower was ran for a while, smoke cleared to a point where it wasn's smoking out my garden
- Cut lawn no issues
- 2 Days later, start it and it puffs big clouds of blue smoke out and continues to smoke
- Oil is now dark grey and smells a bit like petrol
I bought the mower as spares but was listed as only needing a back wheel as it had broken, so I don't know the condition of the internals. I can only assume that the piston rings are worn, so its letting oil past the top of the piston and burning it.