scooterwj
Pro
Crossfire12
TY 4 Stroke Guru
- Joined
- Feb 13, 2017
- Messages
- 882
- Age
- 68
- Location
- New York Adirondacks
- Country
- USA
- Snowmobile
- 2010 Z1 Turbo ,2017 zr9000, F1100 turbo, 700 srx
- LOCATION
- Sacandaga reservoir
Not with my stock muffler, your muffler might not fit as good as stock. Different. I have hurricane trail muffler no melting , stock didn’t melt.
KnappAttack
24X ISR World Drag Racing Champion
- Joined
- Feb 19, 2004
- Messages
- 4,672
- Location
- Welch MN
- Country
- USA
- Snowmobile
- 2023 Sidewinder LTX-LE
2017 Sidewinder LTX-LE
Nope. Have never seen that with stock muffler or Hurricane trail muffler.
Tcat100
Expert
make sure you don't have a boost leak or anything mechanically off with the motor. If your compression or boost is down for any reason, the fuel system doesn't really know it and keeps pouring fuel in, causing fires in the exhaust. Happened to mine...
scooterwj
Pro
make sure you don't have a boost leak or anything mechanically off with the motor. If your compression or boost is down for any reason, the fuel system doesn't really know it and keeps pouring fuel in, causing fires in the exhaust. Happened to mine...
Motor seems to be running good. Does the discoloration on my exhaust seem normal? I also have a Viper with EVO exhaust and it doesn't have the discoloration...it still looks new with about the same mileage as my SW exhaust. What ended up being wrong with your engine?
scooterwj
Pro
Had a minor boost leak at an intake boot but didn't start leaking until about 17psi and my sled isn't tuned to make that much boost. Anyone else have any thoughts on this? I'm especially confused by the exhaust discoloration... Does the SW exhaust get a lot hotter than a Viper?
sideshowBob
Lifetime Member
IMO your exhaust is overheating to develop that level of discoloration. I would contact the Company that produced your "Tune" and ask for advice.
scooterwj
Pro
IMO your exhaust is overheating to develop that level of discoloration. I would contact the Company that produced your "Tune" and ask for advice.
Thanks. I'll reach out to them. I'm running EVO tuning. I was running their stage 0 (fuel correction for exhaust) last year when this happened.
Tcat100
Expert
That's the source of your muffler problem guaranteed. Exact we thing happened to me. The motor isn't getting all the air that corresponds to fuel that's going in, causing raw fuel to be dumped into the exhaust. That fuel is burning in the exhaust and not the motor where it should.Had a minor boost leak at an intake boot but didn't start leaking until about 17psi and my sled isn't tuned to make that much boost. Anyone else have any thoughts on this? I'm especially confused by the exhaust discoloration... Does the SW exhaust get a lot hotter than a Viper?
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