CaneCutter79
Chief Petty Officer
- Joined
- May 24, 2009
- Messages
- 454
My motor model # and type is listed below in my signature.
I've had the motor rebuilt recently.
This issue has been on-going since the rebuild.
I've recently replaced the stator since my mechanic told me the left side of motor was weak but within tolerance (barely).
I had hoped the new stator would solve the issue but it hasn't.
I've replaced the spark plugs, I've had the fuel line and bulb replaced as part of the rebuild.
The fuel pump and carb was completely rebuilt during rebuild.
The issue. (this is where it's weird)
For the last few outings, the motor will not start or at least it takes a lot of work to get it started. It tries to run but is sluggish. Keep starting, choking, checking to see if bulb is tight, etc. and the only way you can get it started is to raise the motor up so the prop is out of the water to relieve water pressure at exhaust from prop. Once you do that, the motor slowly starts and fast idle has to be slowly engaged as the motor warms. If you push fast idle lever all the way forward, motor won't run and chokes.
The bulb is not consistent and sometimes needs pumping but if the motor is running, if you pump it or choke the motor, it dies. I've changed the plugs and checked the plugs with a spark-gap test when the motor is acting up and I get bright blue sparks on each plug.
Once the motor is started and has slowly worked out whatever is causing the problem, the motor runs fine. It's slow to get on plane but at about 3/4 of the way on plane, (once the pressure is relieved) the motor runs fine and surges forward as if a fouled plug was firing correctly. After that, the motor runs completely normal and if you stop the motor and start it, it starts fine and jumps on plane like normal.
The motor issue occurs if you let the motor idle for a long period (more than 3-5mins) and if you let the motor sit for a while (like when fishing and motor is off). The longer the motor sits while not running, the harder it is to start. Only way to start it is to raise the motor to relieve pressure or to play with the choke and primer bulb. Most of the time, the bulb is tight.
I can't seem to figure out if its a fuel issue or spark issue. Spark tests show its not spark. I'm going to check the readings with a DVA meter tomorrow to rule out ignition.
I think it's a fuel issue and could be the primer bulb itslef which is a cheap fix. The weird thing is the behavior of the motor. COld starts, doesn't like to idel for long time periods (I have a 200yrd no-wake zone at my marina) and doesn't like to sit for time periods for more than 5 mins. Once motor works out the air-bubble or bad fuel mix or whatever the issue is, it runs fine and starts fine. QUick on plane, etc. Idle it for a while or let it sit and you struggle to get it started again.
Sounds like a fuel pump diaphram or faulty primer bulb to me. Any suggestions on where to look? If I can rule out ignition, it's got to be primer bulb or fuel pump. Couldn't be carb settings because it wouldn't run normal once it's warm and running well. Which leads me to thing primer bulb.
Oh and I've changed fuel to a different tank so it's not bad fuel or bad plugs either. CHanged those too.
I've had the motor rebuilt recently.
This issue has been on-going since the rebuild.
I've recently replaced the stator since my mechanic told me the left side of motor was weak but within tolerance (barely).
I had hoped the new stator would solve the issue but it hasn't.
I've replaced the spark plugs, I've had the fuel line and bulb replaced as part of the rebuild.
The fuel pump and carb was completely rebuilt during rebuild.
The issue. (this is where it's weird)
For the last few outings, the motor will not start or at least it takes a lot of work to get it started. It tries to run but is sluggish. Keep starting, choking, checking to see if bulb is tight, etc. and the only way you can get it started is to raise the motor up so the prop is out of the water to relieve water pressure at exhaust from prop. Once you do that, the motor slowly starts and fast idle has to be slowly engaged as the motor warms. If you push fast idle lever all the way forward, motor won't run and chokes.
The bulb is not consistent and sometimes needs pumping but if the motor is running, if you pump it or choke the motor, it dies. I've changed the plugs and checked the plugs with a spark-gap test when the motor is acting up and I get bright blue sparks on each plug.
Once the motor is started and has slowly worked out whatever is causing the problem, the motor runs fine. It's slow to get on plane but at about 3/4 of the way on plane, (once the pressure is relieved) the motor runs fine and surges forward as if a fouled plug was firing correctly. After that, the motor runs completely normal and if you stop the motor and start it, it starts fine and jumps on plane like normal.
The motor issue occurs if you let the motor idle for a long period (more than 3-5mins) and if you let the motor sit for a while (like when fishing and motor is off). The longer the motor sits while not running, the harder it is to start. Only way to start it is to raise the motor to relieve pressure or to play with the choke and primer bulb. Most of the time, the bulb is tight.
I can't seem to figure out if its a fuel issue or spark issue. Spark tests show its not spark. I'm going to check the readings with a DVA meter tomorrow to rule out ignition.
I think it's a fuel issue and could be the primer bulb itslef which is a cheap fix. The weird thing is the behavior of the motor. COld starts, doesn't like to idel for long time periods (I have a 200yrd no-wake zone at my marina) and doesn't like to sit for time periods for more than 5 mins. Once motor works out the air-bubble or bad fuel mix or whatever the issue is, it runs fine and starts fine. QUick on plane, etc. Idle it for a while or let it sit and you struggle to get it started again.
Sounds like a fuel pump diaphram or faulty primer bulb to me. Any suggestions on where to look? If I can rule out ignition, it's got to be primer bulb or fuel pump. Couldn't be carb settings because it wouldn't run normal once it's warm and running well. Which leads me to thing primer bulb.
Oh and I've changed fuel to a different tank so it's not bad fuel or bad plugs either. CHanged those too.
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