The 2009 Yamaha VMAX has two recalls, the more serious being an oil pump that can fail under abnormally high oil pressure, starving the engine of lubrication and causing it to stall.
The second recall involves a poorly crimped ground wire connection shared by the throttle and accelerator position sensors. Excessive electrical resistance in that connection can send incorrect signals to the engine management system, potentially causing erratic throttle behavior.
At a glance
What can fail
Engine oil pressure may rise abnormally high, causing the oil pump to fail. When this happens, oil stops circulating through the engine, leading to severe engine damage and stalling.
What the fix does
The engine oil pump will be replaced with a new one.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The ground wire connection for the throttle sensors may have a weak crimp, causing poor electrical contact. This can send wrong signals to the engine computer, making the engine idle speed unstable or stay above 3000 rpm when you release the throttle.
What the fix does
Dealers will install a new bypass wire to eliminate the problem connection in the wire harness.
Summarized — see the official notice for exact wording, dates, and contacts.
