Neglect

[swooshdave]

I see that some of you, including Roper, have forgotten that because of my nagging there was a more recent run of plates. So yes, it has a plate.

Could it be a little low on oil? I will check.

Did I really forget to post the wire bracket thing?

[Weegie]

Hi Dave

Not sure of the sequence of events, the bike stuttered and died after sitting some time, after you had lunch, so it was cold, or slightly warm but not hot?

When did the low pressure light illuminate after starting?

Did it stay on after you applied some throttle/revs then go out and only flickered on for a second or two?

Just my opinion, the flicker of the light could be nothing, the switch/connections needing attention or genuine low pressure and investigation into the mechanicals.

Many others have gone into the probable causes.

I'd first check oil level, then get a gauge onto it, remove the plugs (to lessen the strain on the bearings and increase crank speed) and crank it over. If it's cold the oil pressure should register quickly, within a few seconds and spin up to at least 40, I usually see 60 on the Sporti (more or less same bottom end)

I'd be concerend about engine mechanical integrity first, sputtering and faulty pressure swtich/electrics would concern me less, although obviously needing to be looked into later.

John

[swooshdave]

7 hours ago, Weegie said:

Hi Dave

Not sure of the sequence of events, the bike stuttered and died after sitting some time, after you had lunch, so it was cold, or slightly warm but not hot?

When did the low pressure light illuminate after starting?

Did it stay on after you applied some throttle/revs then go out and only flickered on for a second or two?

Just my opinion, the flicker of the light could be nothing, the switch/connections needing attention or genuine low pressure and investigation into the mechanicals.

Many others have gone into the probable causes.

I'd first check oil level, then get a gauge onto it, remove the plugs (to lessen the strain on the bearings and increase crank speed) and crank it over. If it's cold the oil pressure should register quickly, within a few seconds and spin up to at least 40, I usually see 60 on the Sporti (more or less same bottom end)

I'd be concerend about engine mechanical integrity first, sputtering and faulty pressure swtich/electrics would concern me less, although obviously needing to be looked into later.

John

Sorry, yes, let me attempt to clarify.

I went to lunch and then dropped by my friends house. I shut the bike off for 5-10 mins. Started the bike up to leave. Got about a block or so away and it sputtered. Bike was definitely warm. Pulled over and shut the bike off. Restarted the bike and it ran fine.

One the way home (it's about a 15 minute ride in total) I went around a corner and caught the oil light on for a second. It went out and I noted it. Did not reappear.

Have not checked oil level yet. Have not ridden it since.

Mostly the post is about how people really shouldn't be like me and neglect the maintenance. 

Ironically I grabbed the Norton later for another ride and it had a similar sputter. Turned out to be a loose spark plug wire. It wasn't my day. Which is too bad as the weather was perfect.

[motortouring]

Well maybe best to give it some oil and a tender hug on the tank and say some kind words.

That always worked for my Peugeot Diesel.

[swooshdave]

7 minutes ago, motortouring said:

Well maybe best to give it some oil and a tender hug on the tank and say some kind words.

That always worked for my Peugeot Diesel.

Sweet talking in French is outside my wheelhouse. 

[docc]

1 hour ago, swooshdave said:

I shut the bike off for 5-10 mins. Started the bike up to leave. Got about a block or so away and it sputtered. Bike was definitely warm. Pulled over and shut the bike off. Restarted the bike and it ran fine.
 

That sounds like classic V11 "heat soak" made worse by the ECU always starting up and running a rich map for the first 4,000+ rpm.

This effect is exacerbated when the plugs/valve adjustment/state of tune has aged out from the last service interval . . .

[Weegie]

2 hours ago, swooshdave said:

I went around a corner and caught the oil light on for a second. It went out and I noted it. Did not reappear.

Have not checked oil level yet. Have not ridden it since.

Just wondering if the oil level was really low and you cranked into a turn, you uncovered or partially uncovered the pump suction, leading to a momentary loss of oil pressure.

If that was the case then in all probability it would recover pressure once upright or close to upright, explaining the event.

If the oil was really low then the Roper Plate would probably do little to prevent this

Of course I'd go through the preventitive actions already mentioned by others and me, just to entirely rule out other causes.

Good Luck with the checks, be interesting to know what you find.

John