Observations on starting - F3 800 - MVAgusta.net
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post #1 of 79 (permalink) Old 09-09-2016, 05:24 PM Thread Starter
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Observations on starting - F3 800

Assuming full or reasonably full charge (eg ridden in last 48hrs and/or on charger) :
I've noticed that if I switch on and start then all good. But if I switch on and delay maybe 30s (whilst I faff about with lid and maybe clear the trip counter ) it struggles to start.

When you switch it on, it primes the injectors and stuff (I know this cos I put her back together once but forgot petrol pipe - fuel pumped everywhere) - how long do they stay primed for?

Looking back, on the off times I've struggled to start I've pretty much always switched on, reset trip, climbed aboard, hit start.

But if I ever just switch on, wait till "ok" and then hit "go" fires up.

Thoughts people?

Take a chance while you still got the choice.
F3-800 / RVF400. Lancashire, England.
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post #2 of 79 (permalink) Old 09-10-2016, 02:27 AM
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Quote:
Originally Posted by manicguitarist View Post
Assuming full or reasonably full charge (eg ridden in last 48hrs and/or on charger) :
I've noticed that if I switch on and start then all good. But if I switch on and delay maybe 30s (whilst I faff about with lid and maybe clear the trip counter ) it struggles to start.

When you switch it on, it primes the injectors and stuff (I know this cos I put her back together once but forgot petrol pipe - fuel pumped everywhere) - how long do they stay primed for?

Looking back, on the off times I've struggled to start I've pretty much always switched on, reset trip, climbed aboard, hit start.

But if I ever just switch on, wait till "ok" and then hit "go" fires up.

Thoughts people?
I never switch on until I'm fully geared up and sitting on the bike, side stand up, in neutral then - like you said - switch on, "ok", clutch in, start. Never had a problem with either F3.

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post #3 of 79 (permalink) Old 09-10-2016, 05:06 PM
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I only find a problem starting when she is cooling down form hot around 15 mins. It took ages to turn over.
I even turned all off and on again.
if I leave it switched of 30 mins or later starts 1st go every time
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post #4 of 79 (permalink) Old 09-14-2016, 10:59 AM
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Since Day 1 when i first brought mine home, I immediately installed Shorai battery and better ignition cables. I have experienced none of the issues mentioned in this thread. I can leave it turned 'on' and waiting for me for quite a while, hop on and start and she fires right up.
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post #5 of 79 (permalink) Old 09-14-2016, 11:12 AM
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Correct maniac! If you start right away after the diagnostic is done it hardly fails to start right away. Occasionaly when hot indeed it is harder, but even then it helps to do it like this.

What a beast of a motorcycle!
It growls and rages and flies across the tarmac like a wild animal that has escaped the confinement of a cage and after merely waiting restlessly until the release, will not endure being locked up ever again.


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post #6 of 79 (permalink) Old 09-28-2016, 07:22 PM
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I am also having starting issues at the moment, but seems slightly different.

As above, if it's dead cold and/or been on charger overnight, seems totally happy, starts up within a couple of revolutions. Given all the other info I've heard in the past I'm always geared up and ready to go before I even turn the bike on.

Couple of days ago I had issue trying to start it after it'd been off for 3+ hours, plugged in since I got home but just wouldn't go, tried so much it ran the battery dry so gave up. Came out the next morning and tried again, fired right up.
Yesterday arrived at work, went in for 30 minutes, headed out to move the bike into the garage once it was open, wouldn't start. Tries to turn off, stops, starts turning over again etc. but doesn't fire up. Go through the full process sitting on the start 4 full times, give up, push it and go back to work. Bring out one of the other staff at the end of the day for a bump if I need one, but fires up straight away in about 3 revolutions. Go home, raining and crap outside to plug it in and leave it.
Come out this morning, fires up right away, all good. Go to work, park it up and leave it, come out to go grab some lunch out the office, bike still warm, won't start, same as yesterday, tries, gets lumpy on the started, stops and never fires.

I am now waiting for the end of the day, and will bring someone for potential bump again but chances are it'll start up right away when cold. I'm still waiting on my new battery, late next week probably, but it's becoming real worrying being my only transportation.
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post #7 of 79 (permalink) Old 09-29-2016, 06:23 AM Thread Starter
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It does sound like a battery issue. Where in the world are you?
In the UK I got my new battery next day from WeMoto.
Out of curiosity, are you using the standard exhaust?
I mentioned to my dealer that I sometimes had issues starting when the engine was hot - he thought it might be to do with air/fuel/exhaust sensors - and the engine running too lean. The bikes learn from new what their systems expect - he forced my bike to relearn and it has been fine since.

Take a chance while you still got the choice.
F3-800 / RVF400. Lancashire, England.
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post #8 of 79 (permalink) Old 09-29-2016, 10:37 AM
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Perfect "Sprag Clutch" syndrome, which I have had on four occasions
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post #9 of 79 (permalink) Old 09-29-2016, 10:42 AM Thread Starter
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When mine has struggled to start - I can hear the engine turning over...just not firing.

Take a chance while you still got the choice.
F3-800 / RVF400. Lancashire, England.
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post #10 of 79 (permalink) Old 09-29-2016, 03:43 PM
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Quote:
Originally Posted by JMcP92 View Post
I am also having starting issues at the moment, but seems slightly different.

As above, if it's dead cold and/or been on charger overnight, seems totally happy, starts up within a couple of revolutions. Given all the other info I've heard in the past I'm always geared up and ready to go before I even turn the bike on.

Couple of days ago I had issue trying to start it after it'd been off for 3+ hours, plugged in since I got home but just wouldn't go, tried so much it ran the battery dry so gave up. Came out the next morning and tried again, fired right up.
Yesterday arrived at work, went in for 30 minutes, headed out to move the bike into the garage once it was open, wouldn't start. Tries to turn off, stops, starts turning over again etc. but doesn't fire up. Go through the full process sitting on the start 4 full times, give up, push it and go back to work. Bring out one of the other staff at the end of the day for a bump if I need one, but fires up straight away in about 3 revolutions. Go home, raining and crap outside to plug it in and leave it.
Come out this morning, fires up right away, all good. Go to work, park it up and leave it, come out to go grab some lunch out the office, bike still warm, won't start, same as yesterday, tries, gets lumpy on the started, stops and never fires.

I am now waiting for the end of the day, and will bring someone for potential bump again but chances are it'll start up right away when cold. I'm still waiting on my new battery, late next week probably, but it's becoming real worrying being my only transportation.
Mate - worry no more - you have a sprag clutch that needs replacement.

I have the exact same symptoms and the dealer is ordering the replacement sprag kit.

Try (as a stop gap measure) to push the starter button in and only then pull the clutch lever in enough to activate the starter through the clutch switch. I find that this helps with starting since there somehow must be more pressure through the gearshafts and onto the sprag clutch when the clutch plates are engaging.

ie - pull clutch in and keep it 'at the friction point' when the switch engages - don't pull it in fully.

Faster and Faster untill the fear of death subsides.....
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