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FJR Motorcycle Forums
FJR Specific Discussion
Engine Didn't Grenade/Something Happened/And Final Report
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<blockquote data-quote="Intech" data-source="post: 1399308" data-attributes="member: 18497"><p>OK, so the title of this thread was a little dramatic. Still don't know what the exact problem is, but here are all the symptoms and observations so far:</p><p></p><p>David was riding going about 40 MPH and felt a loss of power and immediately pulled the clutch in and coasted to a stop. The engine had quit. It wasn't making any abnormal noises either. Just quit. He attempted to restart it. He heard the solenoid click, but the engine would not turn over. He got it home and removed the valve cover and found no apparent problems. Cam chain still tight and no visible damage.</p><p></p><p>I arrived Friday evening. I removed the spark plugs and put a socket on the crank and the engine rotated freely, However a large amount of fuel shot out of the #2 cylinder. I then put it in 5th gear and rotated the engine and transmission with the rear wheel easily. Saturday we proceed with engine removal. The exhaust also had a large amount of fuel in it. After getting the engine out a preliminary visual inspection found no apparent valve damage or burn. There is a copper looking substance on the bottom of the intake ports. it came out freely when wiped with a finger. Late in the day I had the side covers off and most of the casing bolts loose. Not enough time to get any further as I needed to ride home yesterday. My brother will continue with splitting the case and we will be able to inspect the transmission.</p><p></p><p>My question is what would cause it to have that much fuel in the engine and exhaust? It appeared it was coming from only the #2 cylinder.</p></blockquote><p></p>
[QUOTE="Intech, post: 1399308, member: 18497"] OK, so the title of this thread was a little dramatic. Still don't know what the exact problem is, but here are all the symptoms and observations so far: David was riding going about 40 MPH and felt a loss of power and immediately pulled the clutch in and coasted to a stop. The engine had quit. It wasn't making any abnormal noises either. Just quit. He attempted to restart it. He heard the solenoid click, but the engine would not turn over. He got it home and removed the valve cover and found no apparent problems. Cam chain still tight and no visible damage. I arrived Friday evening. I removed the spark plugs and put a socket on the crank and the engine rotated freely, However a large amount of fuel shot out of the #2 cylinder. I then put it in 5th gear and rotated the engine and transmission with the rear wheel easily. Saturday we proceed with engine removal. The exhaust also had a large amount of fuel in it. After getting the engine out a preliminary visual inspection found no apparent valve damage or burn. There is a copper looking substance on the bottom of the intake ports. it came out freely when wiped with a finger. Late in the day I had the side covers off and most of the casing bolts loose. Not enough time to get any further as I needed to ride home yesterday. My brother will continue with splitting the case and we will be able to inspect the transmission. My question is what would cause it to have that much fuel in the engine and exhaust? It appeared it was coming from only the #2 cylinder. [/QUOTE]
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FJR Motorcycle Forums
FJR Specific Discussion
Engine Didn't Grenade/Something Happened/And Final Report
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