'15 Dragster 800 Cold Start - MVAgusta.net
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post #1 of 23 (permalink) Old 05-22-2016, 12:49 PM Thread Starter
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'15 Dragster 800 Cold Start

Been having trouble starting it up the first time when the weather is cold. It starts up, turns over, and then it dies after 3 seconds. It usually takes 4-5 tries until it finally starts up. I have already brought it in to a shop to re-sync the throttle bodies. What would be the solution to this? I've read so far in this forum that the possible solutions may be that it needs a new battery, sprag clutch, or it needs an updated map.

Thanks in advance.

Jeremy
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post #2 of 23 (permalink) Old 05-22-2016, 06:46 PM
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Sounds like sprag clutch.

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post #3 of 23 (permalink) Old 05-22-2016, 08:41 PM
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If the spins over properly your battery is fine, but the sprag is probably not OK.

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post #4 of 23 (permalink) Old 05-23-2016, 01:25 AM Thread Starter
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Well, riding it after work today, the bike stalled on me a couple times on the way home as I came to a stop. Seems like re-syncing the throttle bodies did not fix that problem of the Dragster... hooray?
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post #5 of 23 (permalink) Old 05-23-2016, 03:44 AM
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If it starts up then dies after 3 seconds, it cant be the sprag. It did its job by starting the engine.

Im not sure what it could be, but wanted to comment to discount the sprag

Kag

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post #6 of 23 (permalink) Old 05-23-2016, 05:54 AM
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Did it stall before you had the throttles synched?
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post #7 of 23 (permalink) Old 05-23-2016, 09:14 AM Thread Starter
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Yes it stalled before I got the throttle sync'd
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post #8 of 23 (permalink) Old 05-23-2016, 10:14 AM
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Do the B3 bikes have the Cold Start Throttle lever?

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post #9 of 23 (permalink) Old 05-23-2016, 10:58 AM
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No - its all ecu/sensors.

Jeremy what did the shop say about your throttles? Were they miles off/OK/thereabouts? Was it an MV dealer?

Also what country are you in?

Last edited by Jono; 05-23-2016 at 11:02 AM.
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post #10 of 23 (permalink) Old 05-23-2016, 12:34 PM Thread Starter
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No - its all ecu/sensors.

Jeremy what did the shop say about your throttles? Were they miles off/OK/thereabouts? Was it an MV dealer?

Also what country are you in?
One of the air screws was turned all the way in. They adjusted and resync'd all of them. This was a shop that specialized in MV Agusta, Ducati, and etc. I'm in California, USA.
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