Milwaukee-eight with stage kits - loss of power or high engine braking.
Harley-Davidson technical service bulletin 1HDG4C4U11 for 2017-2018 Harley-Davidson Flhtcu, 2017 Harley-Davidson FLHX and 2017-2018 Harley-Davidson Flhtk and others.
- Bulletin number
- 1HDG4C4U11
- Component
- Power train
- Summary
- SERVICE BULLETIN M1450: MILWAUKEE-EIGHT WITH STAGE KITS - LOSS OF POWER OR HIGH ENGINE BRAKING. Revision. Purpose: 2017 and 2018 model motorcycles equipped with a Milwaukee-Eight? engine and a Stage III or Stage IV kit can experience a condition known as sumping during extended periods in low gear, at high rpm or under heavy engine load. This bulletin provides the diagnostic procedure for determining if sumping is occurring.
Owners of these vehicles have filed 39 complaints in the transmission category.
Vehicles covered
- Harley-Davidson Flhtcu 2017-2018 20172018
- Harley-Davidson FLHX 2017 2017
- Harley-Davidson Flhtk 2017-2018 20172018
- Harley-Davidson FLHR 2017-2018 20172018
- Harley-Davidson Fltrx 2017-2018 20172018
- Harley-Davidson Flhxs 2017-2018 20172018
- Harley-Davidson Fltrxs 2017-2018 20172018
- Harley-Davidson FLHP 2017-2018 20172018
- Harley-Davidson Flhxse 2017-2018 20172018
- Harley-Davidson Flhtkse 2017-2018 20172018
- Harley-Davidson Flstn 2018 2018
- Harley-Davidson Flhtp 2017-2018 20172018
- Harley-Davidson Flhtkl 2017-2018 20172018
- Harley-Davidson Fltruse 2017-2018 20172018
- Harley-Davidson Flhtcul 2017-2018 20172018
- Harley-Davidson Fxse 2017 2017
- Harley-Davidson FLSL 2018 2018
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