Having backfiring issue on a 2023 Lynx Shredder RE. It will backfire on hard pulls at 7800 to 8000 rpm. It will not do it on holeshots out of the hole or when on and off the throttle hard. Just long pulls or 200 or 300 feet wide open into the start of a pull. This is what I have tried up to this point is
- change spark plugs ( yes indexed)
- checked fuel pressure, holds 43 to 44 psi at wide open across the field.
- installed new reeds.
- hooked to buds no faults at anytime recorded
- reflashed fuel injectors to ecu
- checked boost tube on the pipe, no breaks and no restrictions.
- new belt
- new rave valve servo motor
none of these have fix the problem. Some days it will barely do it maybe once in a ride. Other days does it just about ever time on long wide open runs. Sometimes once at 200 to 300 feet backfire and then backfire again at a 1/4 mile or so at still wide open.
I’m starting to think it is a fuel injector but not sure it it’s a main injector or a boost injector.
Anyone else have these problems?
And yes sled is stock. Except for a Sled Head Racing clutch kit that it ran perfectly fine with the whole last season with no backfiring.
- change spark plugs ( yes indexed)
- checked fuel pressure, holds 43 to 44 psi at wide open across the field.
- installed new reeds.
- hooked to buds no faults at anytime recorded
- reflashed fuel injectors to ecu
- checked boost tube on the pipe, no breaks and no restrictions.
- new belt
- new rave valve servo motor
none of these have fix the problem. Some days it will barely do it maybe once in a ride. Other days does it just about ever time on long wide open runs. Sometimes once at 200 to 300 feet backfire and then backfire again at a 1/4 mile or so at still wide open.
I’m starting to think it is a fuel injector but not sure it it’s a main injector or a boost injector.
Anyone else have these problems?
And yes sled is stock. Except for a Sled Head Racing clutch kit that it ran perfectly fine with the whole last season with no backfiring.
