starts, wont run - MVAgusta.net
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post #1 of 43 (permalink) Old 05-30-2010, 04:56 PM Thread Starter
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starts, wont run

Ok guys, I'm at a stand still. Just did my annual maintenance, new oil/filter, new coolant, and now the bike wont run. It turns over and fires up, but wont stay running, if I try to throttle her up she shuts off.

p.s. she did run the day I did the services, this is the next day. 2005 Brutale 750

Help please!
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post #2 of 43 (permalink) Old 05-30-2010, 05:27 PM
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Sounds like maybe one of the fuel hoses is pinched closed? If it ran before you worked on it, then go back and look at everything you disconnected during the service.

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post #3 of 43 (permalink) Old 05-31-2010, 12:14 AM
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+1

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post #4 of 43 (permalink) Old 05-31-2010, 04:41 AM
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Originally Posted by esq'z me View Post
Sounds like maybe one of the fuel hoses is pinched closed? If it ran before you worked on it, then go back and look at everything you disconnected during the service.

+2
Make sure the fuel pump is pressuring up and also that you are not getting a vacuum in the fuel tank, also try starting it with an open filler cap. Check all the hoses on the fuel pump assembly and finally if all else fails change the fuel filter as a precaution
.


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post #5 of 43 (permalink) Old 05-31-2010, 09:44 AM Thread Starter
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I finally got it. The TPS had somehow gone out of wack. I plugged in the VDSTS and readjusted it to 1.7, and she runs like a dream. It was reading 1.5, which is within the acceptable range, but it just would not keep running at that setting. Thanks for the replies guys.
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post #6 of 43 (permalink) Old 05-31-2010, 09:57 AM
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I finally got it. The TPS had somehow gone out of wack. I plugged in the VDSTS and readjusted it to 1.7, and she runs like a dream. It was reading 1.5, which is within the acceptable range, but it just would not keep running at that setting. Thanks for the replies guys.


Glad you got it sorted old bean


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post #7 of 43 (permalink) Old 05-31-2010, 09:23 PM Thread Starter
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Ok, my previous post was premature. I rode the bike for bout 40 minutes and it ran great. I tried to start it a few hours later, and the same thing, starts, but wont keep running.
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post #8 of 43 (permalink) Old 09-22-2012, 09:04 AM
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Hi, did you ever sort this? I have the same problem.
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post #9 of 43 (permalink) Old 09-22-2012, 09:42 AM
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I had been fighting a similar issue since August. Got a volt meter and found out my regulator on the alternator was throwing out the wrong current and the bike would start but not run. $100 for a new regulator and was back in business. If this is it, talk to me before you take it out, is a pain in the ass.
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post #10 of 43 (permalink) Old 09-23-2012, 06:46 AM
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Hi, what is the method for testing the regulator? Had the problem 6 months ago but it went away after I re-routed the fuel pipes, I thought they were trapped. Its come back again so have changed the fuel filter and pipes in the tank as a precaution and made sure the pipes have not been kinked anywhere, could I really be looking a charging system problem?
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