Hor start issues, please help
Grand HDF Member
Joined: May 2008
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From: Picayune, Ms.
Purchase enough fuel hose to go from the petcock down between the cylinders near the crankcase then up to the carb.
If that doesn't work; purchase a new crankshaft sensor (located by the oil filter) and replace that.
If that doesn't work; purchase a new crankshaft sensor (located by the oil filter) and replace that.
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Novice
Joined: May 2022
Posts: 19
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From: Waterbury, Ct
Thanks for the crankshaft sensor tip. Have you heard of these going bad when hot?
Grand HDF Member
Joined: May 2008
Posts: 4,329
Likes: 3,626
From: Picayune, Ms.
Yes, if the fuel line passes any where near the heads of the engine it will vapor lock and you would have to wait for the engine to cool off to get good fuel flow again. Do this especially if you removed the cover off the fuel line.
Suggested the crankshaft sensor because they are known to overheat and shut down the engine, cool down and then run normally until they get hot again, but this will usually cause the problem while running. This has happened to me twice.
I've also had a similar problem with the fuel line. Could only go 5mi at a time. What happened was the fittings at either end had developed stress cracks so I trimmed them back for "new" rubber on the hose. This shortened the hose enough that it needed re-routing. So I went over the engine mount instead of under it. That was enough of a change to cause the problem.
Suggested the crankshaft sensor because they are known to overheat and shut down the engine, cool down and then run normally until they get hot again, but this will usually cause the problem while running. This has happened to me twice.
I've also had a similar problem with the fuel line. Could only go 5mi at a time. What happened was the fittings at either end had developed stress cracks so I trimmed them back for "new" rubber on the hose. This shortened the hose enough that it needed re-routing. So I went over the engine mount instead of under it. That was enough of a change to cause the problem.
Club Member
Joined: Apr 2011
Posts: 5,816
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From: SE Louisiana
Probably barking up the wrong tree, first step is to verify spark when it doesn't start, I'd bet it doesn't and you end up replacing the crank position sensor to repair it.
In the meantime, pull the crank sensor, see it there's metal fuzz stuck to it, it's magnetic
In the meantime, pull the crank sensor, see it there's metal fuzz stuck to it, it's magnetic
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