Steviestew87
New member
Hi,
I'm wondering if anyone can help out? I have a Honda BF50A which has previously been running well however, on our last trip we set away from the marina after carrying out all our pre users checks ie: oil, tell tale water ect and all seemed to be running well until we went to increase the power. With the throttle position being around 50% we noticed that the tachometer was reading was 1800rpm even though the engine seemed to be running a lot faster - it was at this point we went to increase to 100% throttle to find that the vessel would only do 10 knots at WOT with a readout of 2200rpm. The engine runs smoothly at idle and WOT which is leading me to think that the engine has either went into a guardian mode or not talking to a component which controls the engine speed signal. We got the vessel lifted out to carry out some annual maintenance and thought that it would be a good opportunity to investigate the engine related issue in more depth. We have had the following checked professionally:
The vessel is a warrior 165 and used to do around 25knots but now struggles to get to 10 knots.
Thanks in advance
steve
I'm wondering if anyone can help out? I have a Honda BF50A which has previously been running well however, on our last trip we set away from the marina after carrying out all our pre users checks ie: oil, tell tale water ect and all seemed to be running well until we went to increase the power. With the throttle position being around 50% we noticed that the tachometer was reading was 1800rpm even though the engine seemed to be running a lot faster - it was at this point we went to increase to 100% throttle to find that the vessel would only do 10 knots at WOT with a readout of 2200rpm. The engine runs smoothly at idle and WOT which is leading me to think that the engine has either went into a guardian mode or not talking to a component which controls the engine speed signal. We got the vessel lifted out to carry out some annual maintenance and thought that it would be a good opportunity to investigate the engine related issue in more depth. We have had the following checked professionally:
- Carburettors removed and ultrasonically cleaned (no debris found)
- Spark plugs replaced
- Fuel lines checked inc primer bulb
- Replaced tachometer (bullet type)
- Changed fuel filter
- CDI unit replaced with a good known secondhand replacement
- Fuel lift pump replacement
The vessel is a warrior 165 and used to do around 25knots but now struggles to get to 10 knots.
Thanks in advance
steve