# Service bulletin 1HD\-D6J8Q\-08

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10115148
- Published by NHTSA: 2017\-08\-15
- Manufacturer's number: 1HD\-D6J8Q\-08
- Manufacturer's date: 2017\-07\-05
- NHTSA component: ENGINE

## NHTSA's summary

SERVICE BULLETIN M1450: LOSS OF POWER ON 2017 MILWAUKEE\-EIGHT EQUIPPED WITH SCREAMIN' EAGLE STAGE III OR IV KITS. 2017 model motorcycles equipped with a Milwaukee\-Eight? engine and a Stage III or Stage IV kit can experience loss of power during extended high rpm \(Revolutions per minute\) and/or highway speed operation. This bulletin provides the diagnostic procedure for determining if "sumping" is occurring. Sumping is when a higher than desired amount of oil is suspended in the engine crankcase, and the flywheel must travel through the oil, resulting in loss of power and potential engine component damage.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10115148-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10115148-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- HARLEY\-DAVIDSON SCREAMIN EAGLE

JSON: [/v1/bulletins/10115148](/v1/bulletins/10115148)

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