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Old 28 April 2016, 05:34   #31
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My thought is that I'd be so unlikely to lose the stopper as (on mine at least now when almost new) the stopper tends to stay on the shaft which you're going to have tilted right up... whereas with the pin, washer & nut you have no option but to take them off and risk dropping in the water.

I guess you could replicate the stopper with a combination of washers you had with you ready prepared as a get you home solution. I might check that out later.
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Old 28 April 2016, 05:42   #32
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... And it looks like you just ordered the last one they had!
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Old 28 April 2016, 05:56   #33
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Yes that's true. Washers or any old bush just as a get you home. I like that idea.

Thanks.

Trying to find someone with the prop, nut, split pin and some spline grease all under one roof aka shipping charge. Proving difficult.
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Old 28 April 2016, 06:24   #34
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Like many a male I just read the handbook and it has thrown my mind into dissaray. With no tacho, how can I be sure the engine is indeed over revving. Sure all teh evidence leads that way but without having the UCU read can I be sure. The manual says theat when Over revving is detected for > 10 seconds teh rpm will be limited to 3000 until teh throttle is closed at which point it will reset teh ECU and good to go again. Mine doesnt do that. It just misfired a few cycles whilst flashing the red warning light then gets back on full chat. Should I spend my prop money buying a diagnostic tool. I intend getting one at some point anyway, or do I go for the prop. It's such a common problem I'm almost sure this will sort it but it doesnt fall in line with the manual. Now I know why we shouldnt read them!
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Old 28 April 2016, 06:51   #35
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>>>read the handbook and it has thrown my mind into dissaray.

I've upped that stress a notch by buying the service manual and reading through!

A tacho would be ideal to prove this... see this thread... Best Tiny Tach type

Be interested to see how you get on with sourcing the lead/software for reading the ECU... I want one eventually too... I've only found them in the USA.

Chipko will know how they behave when hitting the rev limiter.
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Old 28 April 2016, 07:06   #36
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Suzuki DF20AES - prop size

Quote:
Originally Posted by Fenlander View Post
Chipko will know how they behave when hitting the rev limiter.

Ha Ha! Sound like a right hooligan!
We only bounce of the limiter for a second or so (and not that often-honest), warning light flashes and engine misfires for a split second. Back off slightly and power back on instantly. I think you'd have to bounce of the limiter continuously for 10 plus seconds for the ecu to kick in 'safe mode' forcing a re-set.
We also have a tach/hour meter and limiter kicks in on the nail at 6200 revs.

Dave, for info my 120 services are from P.A. Lynch in Morpeth, Northumberland.
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Old 28 April 2016, 07:07   #37
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Originally Posted by jeffstevens763@g View Post
acording to the manual it's 20hrs or 1 month which ever sooner
This doesn't make sense to me... my engine had done no hours at 1 month... and then sat for about 1 month with only 2 hours on the clock until next run...

...surely it should be 20 hours or, if engine is in daily use a maximum of 1 month since first run?
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Old 28 April 2016, 07:09   #38
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Prop selection wise a quality tachometer could be useful for under revving, but with a limiter in place youll never know how far it would go if it were allowed to. That's why Ive shied away from buying one. For an hour meter reading the ECU is again much simpler once you have the kit. A guy on fleebay was selling one which I believe to be suitable. You need the one with Version 8.0 software or later to work with the DF20. Also note that the engine needs to be running to use it unlike battery equipped EFI models. Not ideal, but that's the nature of the battery less beast.

Yes will be good to hear Chipko's description on how the over rev manifested itself on his craft.

Where did you get the service manual? there is a repository on this site for manuals but It's not on there - yet (Hint :-)

Thanks
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Old 28 April 2016, 07:09   #39
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Yep I'd take it as a month of almost daily use not a month of storage.
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Old 28 April 2016, 07:12   #40
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I missed Chipko's response before I posted that last reply. Yes your findings are identical to mine so I'm now once again convinced of a correct diagnosis. My engineering empathy wont let me hold it on teh limiter long enough for teh ECU shutdown to kick In I guess. Bigger prop it is then.
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