01 1800 surging and will not idle

Information and questions on GL1800 Goldwings (2001-2017)
  • Sponsored Links
Post Reply
Posts: 1
Joined: Mon Aug 22, 2011 10:13 pm
Location: Burlison, TN
Motorcycle: 04 GL1800

01 1800 surging and will not idle

Post by JWKellum » Tue Aug 23, 2011 5:24 pm

I thought it would be the diaphram in the fuel pressure regulator but there is no gas deposit in the vacuum line. Does anyone have any suggestions. Thanks for your response.

Posts: 67
Joined: Sun Nov 29, 2009 8:52 pm
Location: Kearneysville Wv.
Motorcycle: 1994 GL1500A Aspencade

Re: 01 1800 surging and will not idle

Post by Peppyone1955 » Wed Aug 24, 2011 7:29 pm

JW this was a post on another site that might help.
There are two types of idle surge that I'm aware of on the GL1800, mostly affecting 2001 to 2003 models, or any model that has had it's ECM replaced and the new one not correctly initialized. One type involves rhythmic surging with the throttle completely closed. The second type involves a 500 rpm surge, between 1200 and around 1700 rpm, as the throttle is held steady when reaching 1200 rpm or slightly higher. This second complaint is usually experienced as a rider attempts to ride at a steady, slow speed as when trolling through a parking lot looking for a parking space, and it's usually found on early models that underwent the "Product Improvement Campaign".

The closed-throttle surge can usually be eliminated by correctly initializing the bike's ECM. This is done by beginning with a stone cold engine. The technician should start the bike by pressing the start button, but it's important that the throttle twist grip not be disturbed either during the start or for the duration of the initialization process. He should allow the bike to idle till the cooling fans turn on - it may take a while, but be patient. Then turn off the engine by switching off the key. If the throttle is disturbed before the engine is switched off, the initialization process will not complete. Turn the key on again, then re-start the engine. This completes the process, and the surging should be gone.

Post Reply