Harley-Davidson Sportster 1200 Custom (2007–2010) vs Suzuki Boulevard M90 (2009–2010)

Factory maintenance schedules compared.

Service Harley-Davidson Sportster 1200 Custom (2007–2010) Suzuki Boulevard M90 (2009–2010)VY55
Oil change n/a 4,000 mi
Valve service n/a 7,500 mi
Spark plugs n/a n/a
Chain n/a n/a
Brake fluid n/a 24 mo
Coolant n/a 24 mo

Common questions

Which is cheaper to maintain, the Harley-Davidson Sportster 1200 Custom (2007–2010) or the Suzuki Boulevard M90 (2009–2010)?

They demand a similar number of scheduled shop visits based on their factory service intervals.