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Hello folks. I have a quick question. Around 55-65 mph or 4-5k rpms in 5th gear, I can hear my engine making almost a squealing/whistling noise. Its constant and high pitched. Any input would be appreciated. Don't be afraid to ask questions, I'll supply any answers I can. I have a 1981 XS 1100 std
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1981 yamaha xs eleven standard -
Could be the middle drive unit. Check/change the oil.2H7 (79)
3H3
"If it ain't broke, modify it"
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Could be the speedo/speedo cable.Nathan
KD9ARL
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1978 XS1100E
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