Fuel pump turns on, have spark, won't start!
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Joined: Jan 2019
Posts: 68
Likes: 6
From: texas
Fuel pump turns on, have spark, won't start!
I recently did a tank swap on a 2012 sportster forty-eight in addition to a coil relocation. The bike was working perfectly before this, and the fuel pump was transferred over to the new tank. The bik cranks but will not start.
I have checked the following:
I appreciate any input you might have. Please note what I have already tried before suggesting that I check if there's fuel in the tank haha.
I have checked the following:
- both spark plugs have spark
- the fuel pump turns on and I can feel some pressure in the fuel line
- coils are not reversed
- bike still won't start if I spray starter fluid directly in the intake
- fuel in the tank
I appreciate any input you might have. Please note what I have already tried before suggesting that I check if there's fuel in the tank haha.
Outstanding HDF Member
Joined: Dec 2012
Posts: 2,557
Likes: 235
From: Texas
if you get fuel and spark in the cylinder with any compression, it will fire sooner or later unless it is firing on the wrong stroke...did you check to see if you reversed your plug wires?
Seasoned HDF Member
Joined: Apr 2010
Posts: 9,524
Likes: 7,861
From: Long Island, New York
If the motor is spinning, the plugs should be getting fuel on them. After trying to start the bike 3-4 times, remove the plugs. If they are dry, you are not getting fuel to the cylinders.
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