September 12th, 2019, 09:12 PM | #1 |
ninjette.org member
Name: Cal
Location: San Francisco
Join Date: Jun 2017 Motorcycle(s): '09 Ninja 250R Posts: 180
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Exhaust Leak?
I've been noticing an more than normal amount of exhaust smell when I'm riding around. Side note I do have the fairings off right now.
I want to check to see if I have an exhaust leak somewhere. Any tips on how to do this? I sprayed some brake cleaner on the exhaust manifold ports and didn't notice and engine surging. I also blew some ecig vapor over the exhaust manifold openings to see if the ecig vapor moved indicating a leak. I noticed a little hole on the bottom of my exhaust that is spewing exhaust out. Is this hole supposed to be here? Other methods to check for an exhaust leak? Edit: resized picture because it was ridiculously large Last futzed with by nocturncal; September 19th, 2019 at 11:24 PM. |
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September 13th, 2019, 05:50 AM | #2 |
Rev Limiter
Name: Jay
Location: WI
Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot.
MOTM - Jun '18, Oct '16
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You gotta resize that photo...
That looks like a drain hole to let moisture out of the muffler. With it idling you can cover the exhaust outlet with the sole of your shoe (or have a helper do it) and listen for exhaust escaping. If it's been leaking for a while there may also be deposits around the area. You won't get any reaction or RPM change by spraying anything on the exhaust, that only works for finding intake leaks. Not sure I'd spray anything on a hot exhaust system. |
1 out of 1 members found this post helpful. |
September 13th, 2019, 12:21 PM | #3 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
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Best way to find any sort of leak is to plug ends and pressurise intake. Then spray soapy water on outside and look for bubbles.
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September 19th, 2019, 11:22 PM | #4 | |
ninjette.org member
Name: Cal
Location: San Francisco
Join Date: Jun 2017 Motorcycle(s): '09 Ninja 250R Posts: 180
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Quote:
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