Bulbash
Petty Officer 1st Class
- Joined
- May 22, 2012
- Messages
- 332
Guys still have the same issue from a month before. Engine runs slightly hotter than supposed to, according to the gauge around 180* - 190* depending on rpm's. Recent new parts: Impeller with housing and all gaskets (sealed supper well with liquid gasket absolutely no leaks), thermostat, plugs, wires, fuel filter, alternator belt. Timing adjusted to 10* advance as per manual
In general boat runs well no signs of anything abnormal except when after running at high rpms if you turn it off it keeps running for a few seconds, dying out... I think it is a sign of high temperature in the combustion chamber. Also, I had this boat for 2 seasons now and it always was hard to start from cold, needs some throttle in neutral to start, but idles smooth after a warm-up.
I started worrying after melted spark plugs a few weekend ago (was separate thread before). But to be honest I think issue was not resolved.
My dad who is mechanic, tells me to retard timing to 6* instead of recommended 10* and see if that is going to help... I at this point I think it is either timing, or maybe the problem is in a lean mixture which causes elevated temperatures in combustion chamber.
Questions:
1. What are the signs of the lean mixture?
2. Any instructions on how to adjust carburetor? Turning 2 screws until runs good? Doesn't sound very trustful..
3. Setting timing from 10* recommended by the book to 6*, will it likely help my issue?
In general boat runs well no signs of anything abnormal except when after running at high rpms if you turn it off it keeps running for a few seconds, dying out... I think it is a sign of high temperature in the combustion chamber. Also, I had this boat for 2 seasons now and it always was hard to start from cold, needs some throttle in neutral to start, but idles smooth after a warm-up.
I started worrying after melted spark plugs a few weekend ago (was separate thread before). But to be honest I think issue was not resolved.
My dad who is mechanic, tells me to retard timing to 6* instead of recommended 10* and see if that is going to help... I at this point I think it is either timing, or maybe the problem is in a lean mixture which causes elevated temperatures in combustion chamber.
Questions:
1. What are the signs of the lean mixture?
2. Any instructions on how to adjust carburetor? Turning 2 screws until runs good? Doesn't sound very trustful..
3. Setting timing from 10* recommended by the book to 6*, will it likely help my issue?