Ongoing Rivale woes - MVAgusta.net
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post #1 of 25 (permalink) Old 12-15-2015, 12:48 PM Thread Starter
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Ongoing Rivale woes

I picked up my new Rivale late June and experienced issues on the way home with poor running and hunting at lower speeds. I thought it had been fixed following its 600 mile service in July with a throttle body balance but the problem persisted. It went back into the dealer for two weeks in September and had the exhaust gasket replaced but still running badly. In October it went back in for a further two weeks and had the lambda sensor changed. On the way home the bike ran dreadfully with the engine surging and unable to maintain a constant speed at anything less than 60mph. I took the bike back to the dealer on 7th November with an assurance that if it couldn't be fixed this third time they would give me a new replacement bike. After 10 days I had a call to say that everything had been checked over and no faults found however they had another bike with similar issues. They had spoken to MV who were said to be working on an updated map which may be a couple of weeks away from completion. Today I have spoken to the dealer who advised that the new map is still not ready. They have gone over the bike again and have found that the butterfly valves in the throttle body assembly are opening and closing themselves by one or two millimetres which is likely to be causing the problem. I'm no expert on fuelling but I really don't think this is a problem with the mapping or it would affect all of the same model. As things stand I've had the bike six months now and it's been at the dealers for almost 10 weeks in total, albeit with a demonstrator bike loaned to me for that period, so feeling a bit pissed off. I'm going to give the dealer one more week then I think I need to insist on a replacement or my money back. This has been my first MV and I love the bike but it has not been a good experience to date. (Feel a bit better now having got that off my chest!).
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post #2 of 25 (permalink) Old 12-15-2015, 07:03 PM
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Colin, I feel your pain man, been there, done that! I went over two years and the one thing I can tell you for absolute is that there is no fix all new fuel maps.
Only you know how much crap you’re willing to put up with and when enough is enough.
If you have the time and would like to know what I went through than read my thread: Happy anniversary to me, NOT!!!!
http://www.mvagusta.net/forum/showthread.php?t=107681

the Dreamer
(a.k.a. Dreamin' Stephen)
Living life on the edge. Less crowded, better view.
2013 675 MV F3 Red Molly
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post #3 of 25 (permalink) Old 12-15-2015, 10:00 PM
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Hi Colin,
Sorry to hear of the troubles you are having. If the throttle bodies are not functioning correctly it sounds as if you need a new RBW throttle assembly and replacement throttle bodies. Yours would not be the first one to display poor running.

Who is your dealer? Keep up the pressure on them and don't give up. Certainly as Stephen has said new map is not the remedy.

Good luck and keep us informed on progress. Certainly when your bike is fixed they are huge fun to ride.

jimboF4

in the garage: 2001 F4 750 1+1, 2005 Brutale 910S Carbon, 2007 Brutale 910R, 2009 F41000R, 2013 Brutale 800, 2015 Turismo Veloce 800,1976 Triumph T140D Bonneville, 1976 Honda CB400F2.

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post #4 of 25 (permalink) Old 12-15-2015, 10:05 PM
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Damn its sad to read about these things I know this isn`t any help though. Why does it have to be so hard to make reliable and functioning bikes, its beyond me. Hope MV gets things sorted in the future.
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post #5 of 25 (permalink) Old 12-15-2015, 10:15 PM
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Colin, I know how you're feeling. I've had my Brutal 800 over 2 years and it would take a couple pages to tell you all the problems (Sprag, radiator, tip over sensor, surging etc.). The one thing that seemed to fix a lot of my engine problems was the sealing of the throttle bodies. I assume they did this but if they haven't, ask them to. My engine problems went away and I gained an extra 10 MPG.
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post #6 of 25 (permalink) Old 12-15-2015, 10:41 PM
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How did they seal them bodies? With new gaskets or something else? Im curious.
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post #7 of 25 (permalink) Old 12-15-2015, 11:28 PM
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The TB's have three very thin rubber gaskets, when the Sprag goes bad these have to be removed to get to the cover.
When I recently done some maintenance on my bike I used a smear of silicone sealant on the TB's to ensure a good seal.

jimboF4

in the garage: 2001 F4 750 1+1, 2005 Brutale 910S Carbon, 2007 Brutale 910R, 2009 F41000R, 2013 Brutale 800, 2015 Turismo Veloce 800,1976 Triumph T140D Bonneville, 1976 Honda CB400F2.
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post #8 of 25 (permalink) Old 12-15-2015, 11:37 PM
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Sounds Italian, so its not like they normally are, push them inside the rubber manifold and tighten? Theres something else in there too?
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post #9 of 25 (permalink) Old 12-15-2015, 11:43 PM
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It is a metal to metal fit with the three very thin o rings which sit in a machined groove on the intake. Secured with six or seven M6 bolts. Pretty standard type stuff nothing odd.

jimboF4

in the garage: 2001 F4 750 1+1, 2005 Brutale 910S Carbon, 2007 Brutale 910R, 2009 F41000R, 2013 Brutale 800, 2015 Turismo Veloce 800,1976 Triumph T140D Bonneville, 1976 Honda CB400F2.
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post #10 of 25 (permalink) Old 12-16-2015, 12:18 AM
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So like most two stroke cylinder heads? The same kinda principle?
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