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Yamaha 2003 2 stroke 115tlrb 20 amp blown fuse

striper

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Engine starts and runs strong

Engine starts and runs strong for 15 minutes under load and then blows the 20 amp fuse. Install new fuse and blows in 5 min. Ive checked all wiring and tilt trim etc. Any ideas? Usually refuses to start after 3rd changing of fuse. Will start next day no problem and then run for another 15 minutes before blowing the fuse.
 
something is grounding out
ti


something is grounding out
time to get a test light and play around with a wiring diagram
 
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