I'll take a guess here and say you'd just like to clean your last new thread up a bit because it's harder to proofread how the thread works/looks now that the "Thread Preview" icon is missing and you only get Post Thread or Post Reply which makes posting direct vs checking things over before actual posting and I believe you get an hour to edit in any corrections before losing sight of the edit icon...,
https://forums.iboats.com/threads/fouled-crankcase.752544/
I started to make corrections for you but figured it would be better if you made them vs me/us.
Here's what I came up with,
This is a 2 stroke Tohatsu 18 HP motor with around 150 worked hours, exhaust covers and chambers, cylinder head as in (2), pistons were impeccable decarboned and cleaned to mint condition as in (2) on last full restoration. Due to achieving poor acceleration when opening up the throttle fast, I decided to remove the cylinder head assuming the engine was having water intrusion in the combustion chambers, but when removed found this awful scenario.
Data : The owner uses a cheap 2 stroke uncertified TCW-3 oil mixed at 50: 1 and run at low to medium speeds on daily basis powering a medium size boat used as a work boat and tender.
Know that on 2 strokes / 2 cylinder motors, cylinders does not carbon up the same, usually it's one or the other, but this one is the worse seen... Assuming it's a combo of poor oil quality + long slow revving?
New NGK spark plugs were well gaped to specs, all gaskets were installed brand new and torqued to specs and the time advance/carb perfectly synched. Ideas, tech wild guessing that accounts for such scenario?
Happy Boating
If desired, Rewrite the post either in here or your actual thread and we'll just copy and paste it in your original thread or go ahead and create a new thread and we'll hide the other one for you and hide this thread as well when we're all done working together.
Thanks
