"New" exhaust on '87 k75S - K-Bikes.com - Excellence in Motion
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post #1 of 5 (permalink) Old Oct 31st, 2010, 7:51 pm Thread Starter
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"New" exhaust on '87 k75S

Hello All....
I picked up an oem exhaust system to replace the rusted, loud, back-firing aftermarket unit that was on the bike when i bought it. i think it's a Luftmeister unit but i'm not sure.
the new unit is pretty stinkin' nice (and nice looking) and much quieter than the aftermarket one.
It still sounds like there's a small leak around the head but i can't feel anything there. I am using the copper washers that were on the old system. if i were to get some new washers do you thinkg the air leak noise would go away?

Thanks in advance all.
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post #2 of 5 (permalink) Old Oct 31st, 2010, 11:07 pm
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Yes....and there may be some carbon build up in there too. Take the old ones out,clean the orifices and you may want to use a little "never seize" to hold the new ones up there as you install the exhaust, unless you have an extra pair of hands. Go for a ride, recheck the torque on the bolts.

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post #3 of 5 (permalink) Old Nov 1st, 2010, 6:18 pm
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And it will still backfire with an OEM exhaust if you engine brake. A quirk (design error?) of K75s.
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post #4 of 5 (permalink) Old Nov 1st, 2010, 7:55 pm
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What he said ^^^.
"They all (K75) do that" really does apply here.

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post #5 of 5 (permalink) Old Nov 2nd, 2010, 8:07 am Thread Starter
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i cleaned the washers (but not the port). i put a touch of grease on them to hold them in until i got the pipe up in there.
i haven't rechecked the torque yet but will.
i noticed it still backfired but the backfire was a lot quieter
i will recheck before i put the K away for the winter.
thanks guys
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