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Offline TrailStar500

Louder exhaust and more backfire on deceleration
« on: October 02, 2023, 10:56:43 AM »
During a trail ride yesterday, it feels like the backfires became common ... performance was good ... I just had alot of backfire when I would lift on the throtte or going down hills with the engine braking a bit ... I will inspect for exhaust loosness and other causes but wanted to put it out here .... spark plug is newish (last few months, less than 200 miles).

Air cleaner is a Uni that I regularly clean especially after a trail dusty ride .... thoughts?
Love skiing (water and snow), boats, SxS and just being an aging child.

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Offline NMKawierider

Re: Louder exhaust and more backfire on deceleration
« Reply #1 on: October 02, 2023, 11:57:42 AM »
One common issue is that the exhaust springs stretch and loose their tension allowing the joints to part and donuts/gaskets to break and come out. The cure is new gaskets and Moose exhaust springs. Measure the distance between the loops and subtract 20%. Order springs as close to that length as possible.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline TrailStar500

Re: Louder exhaust and more backfire on deceleration
« Reply #2 on: October 02, 2023, 06:10:56 PM »
One common issue is that the exhaust springs stretch and loose their tension allowing the joints to part and donuts/gaskets to break and come out. The cure is new gaskets and Moose exhaust springs. Measure the distance between the loops and subtract 20%. Order springs as close to that length as possible.

Thank you sir, searching for springs now … any parts source for exhaust gaskets?
Love skiing (water and snow), boats, SxS and just being an aging child.

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Offline NMKawierider

Re: Louder exhaust and more backfire on deceleration
« Reply #3 on: October 02, 2023, 07:42:40 PM »
One common issue is that the exhaust springs stretch and loose their tension allowing the joints to part and donuts/gaskets to break and come out. The cure is new gaskets and Moose exhaust springs. Measure the distance between the loops and subtract 20%. Order springs as close to that length as possible.

Thank you sir, searching for springs now … any parts source for exhaust gaskets?
If you need them...and many times you don't, you will have to get them from any CFM parts house.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline TrailStar500

Re: Louder exhaust and more backfire on deceleration
« Reply #4 on: October 28, 2023, 03:03:29 PM »
Found a leak ….
Love skiing (water and snow), boats, SxS and just being an aging child.