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Recent content by Hubertcj

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    Volvo Penta 3.0 GLP-D Low Voltage at Coil

    Good morning folks, need some help chasing an issue on a friends boat. Volvo penta 3.0 GLP-D on a 2006 Stingray 180RX had a no start condition. Ignition coil is new as well as wires and distributor. Measured voltage coming into coil and it was 2.8 volts. Jumped coil to battery positive and...
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    2014 Mercury 25 EFI Compression test vs Leakdown Test

    Good afternoon folks, I have a bit of a confusing predicament with my latest project motor. I have a 2014 Mercury 25 hp EFI tiller that starts super easy on pull start and electric start, and runs relatively smooth at idle. I did a compression test and top cylinder is at 200 PSI and bottom 2...
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    2006 Yamaha T60TLR Surging at WOT

    So I spent Saturday morning riding around in my Carolina skiff with a Yamaha T60TLR. First 2 hours were completely normal with no issues. After that, it began surging and acting like it was starved for fuel. It would idle fine up to about 2k Ron and then it would sputter. If I cut it off for a...
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    2006 Yamaha T60TLR

    I'm having an intermittent gremlin with my 60HP EFI 4 stroke. It will occasionally act like it has low power and will barely plane the boat, then after some time, it will kick in and get to 6000 rpm at WOT. When it bogs down, won't get more than 4000-4500 RPM. It's frustrating because the...
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    1978 Johnson 35 fouling plugs

    Hey folks, we are getting close to having a decent engine I hope. Recently had a few days on the water and last 2 trips were rough. Here's what happens. Start of the day motor is running nice and smooth no issues. Run for about 30 minutes at a combo of idling thru no wake zones and full...
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    Johnson 35 running but not for long

    So I'm having a new issue with my 1978 Johnson 35hp outboard. I run it in the driveway hooked up to the hose and it seems to run ok. Then I take it to the lake and am able to get it running full speed at 25mph for about a minute, then it cuts off and won't run above idle again. Was able to get...
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    1978 Johnson 35 35EL78R powerhead swap compatibility

    I've got a 1978 Johnson 35EL78R with a bad cylinder. Engine overheated and cylinders are now scored up pretty badly. I was going to rebuild, but it looks cheaper to buy a used powerhead with good compression off eBay. Are the later year powerheads compatible with this model? I've looked thru...
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