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Engine Cutting Out Under Acceleration. Causes?


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#1 SeizedBalt

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Posted 09 August 2020 - 03:42 pm

A quick one from the road in Lapland.

Done 1000km so far. No probs until today. Filled up at some petrol station in a small town.

Left 10 min later. Overtook a very slow dithering driver and gunned it past. Engine cut out. I thought it could be the rev limiter. It happened twice during that manoeuvre. Then no problems.

An hour later we stopped for coffee. No fuel bought.

Stayed there for 20 min. Started the engine. It stalled on tick over. Thought nothing of it. But then again 2 min later under only moderate acceleration.

Then no further problems for the next 80 miles.

Thoughts?

#2 leehenty

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Posted 09 August 2020 - 04:39 pm

HT leads arcing to frame? Niners are known for that
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#3 SeizedBalt

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Posted 09 August 2020 - 04:52 pm

Well the guys who did the camchain were supposed to have wrapped them and it looks like its been done

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Edited by SeizedBalt, 09 August 2020 - 04:53 pm.


#4 leehenty

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Posted 09 August 2020 - 07:30 pm

Not that then. Check sidestand switch this can cause cutouts.
2002 900 silver,oil pressure switch with brass 90 degree conversion, RG fork protectors. Wilburs custom made rear Shock with remote hydraulic preload and RG shocktube, Wilburs front springs. Scotoiler with a custom made swing arm delivery unit. Silicone radiator hoses.BMW 1150 handguards with Touratech extensions, Carbon Fibre yoke cover and fender extenda, MRA flip screen, Yamaha Engine bars, SW Motech Centre Stand, Kappa wingrack three box Luggage with E21's as option from the K960 boxes, Zumo 660 satnav on Touratech mount, Led Voltage monitor, Baglux tank cover, Clear LED Rear light, Aux LED brake light, BikeVis bullet LED's under front  nose,Stainless rear axle nut, stainless chain adjusters, stainless wheel spacers front and rear, Probolt Polished Stainless Flanged Hex engine screws, Polished stainless fairing screws, stainless disc bolts. Titanium brake pins front, Probolt Titanium Flanged Hex Front Caliper Bolts & Rear caliper slide pins Adventure Spec Tool tube under rear rack, left and right sides with custom alloy mounts.<p>Top Sellerie double gel pad seat. Carbon Fibre inner dash and side infill panels. Anodised black alloy swingarm pivot bolt covers and footpegs, Nano II Gear indicator.

#5 Snowbird

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Posted 09 August 2020 - 08:13 pm

 

Filled up at some petrol station in a small town.

If a new problem there is probably where the issue lies, I would guess at water in fuel.


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#6 Bjørge

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Posted 09 August 2020 - 11:15 pm

Water in fuel?
Bjørge

#7 SeizedBalt

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Posted 10 August 2020 - 01:37 pm

Water in the fuel sort of seems a strong candidate. Either way it happened again today. Same situation. We stopped for 5 min to take some snaps after riding for and hour and it did it again. 4 times in the space of about 30 seconds, al within about 5 min of pulling away.

So it happens briefly: each cut out lasts between 1-2 seconds.
It may happen more than once but always with a few seconds of other cut-outs.
It happens soon after starting the engine.
It happens when the the bike is warm.
It happens when bike has been switched off for a short while (5-20 min)
It DOESN’T happen every time I stop a warm bike for 5-10.
It doesn’t happen after the bike has stood all night.
It doesn’t happen again once the episode has passed.
The display still works whilst the engine has lost power.
No warning lights like the FI system come on whilst the engine has lost power.

There seems too much of a pattern to be a loose wire.

I don’t know if that sheds any further light in possible culprits.

#8 fixitsan

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Posted 10 August 2020 - 01:40 pm

Relays under the tank ? The connector to the relay mounted closest to the left side of the frame crossmember under the tank, has a habit of allowing corrosion to build up on the large red wire. Mine wasn't the only one to suffer this problem. It would cause intermittent running


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#9 SeizedBalt

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Posted 10 August 2020 - 01:51 pm

Relays under the tank ? The connector to the relay mounted closest to the left side of the frame crossmember under the tank, has a habit of allowing corrosion to build up on the large red wire. Mine wasn't the only one to suffer this problem. It would cause intermittent running


Would it account for the very specific way the symptoms manifest themselves?
Warm bike. Sat for a bit. If it happens early then won’t happen again?

#10 Norwegian

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Posted 10 August 2020 - 03:19 pm

Time for water to settle at the bottom of the tank? Then stirred again as you ride on?

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#11 TKH

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Posted 10 August 2020 - 03:19 pm

Crap in your fuel line from dodgy fuel?



#12 chrisr

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Posted 10 August 2020 - 04:16 pm

Put some of the expensive fuel in next time you fill up, from a known fuel supplier, might help

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#13 SeizedBalt

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Posted 10 August 2020 - 04:49 pm

Well today I topped up in Shell so should be ok in terms of quality.

It does sound like water in the fuel... but I might bevrrying to convince myself!!

#14 wicklamulla

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Posted 11 August 2020 - 10:24 am

had some issues many years ago with a TDM,  i tipped out the fuel into a clear container and let it settle,  lo and behold ya cud clearly see the petrol and water separation after a while. There is stuff ya can buy that can tests fer water in fuel by smearing the product onto a bamboo cane for example and dipping it into the fuel tank,  said product changes colour when it encounters water. 


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#15 wicklamulla

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Posted 11 August 2020 - 10:33 am

Here ya goes

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spyball alarm/immob, bluespot brake calipers and Stainless hoses, Fournales air adjustable shock with Remote Resevoir, forks raised 10mm thru yokes, racetech linear fork springs in 15 wt oil, Kappa wingrack/luggage, heated grips, Kedo handguards, dual heat controller to power heated jacket liner and or pants!!, Stebel 136DB horn, K&N air filter, colour matched Baglux tank cover (magnetic tank bag modified to fit cover), osram +50% headloight bulbs, headlight protector,"NitramSpecial" parking loight, tail light indicators all running on LED's & incorporate "Lite Buddies", MK7 Scottoiler fitted, taller screen, 2-2 stainless steel CCC's, Devil stainless down pipes. MKI Renntec engine crash bars & sump guard.
engine changed july 2007 on a dyno run it made 79.1BHP / Torque 59.9Had a brief flirtation with a 1999 MKIIa but it blew an exaust valve on the M5 so was sold on to be repaired.

I loike tay and hang sangwiches !

www.kenhogantreeservices.co.uk

http://s33.photobuck...77/wickla/?sc=6



http://reg.imageshack.us/v_images.php

post-1-1150550733.gifpost-1-1150550726.gifpost-1-1150559830.gif


#16 SeizedBalt

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Posted 11 August 2020 - 11:32 am

Thanks!

I may have a look in hardware stores.

#17 TKH

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Posted 11 August 2020 - 04:26 pm

Unless it's different where you are, you will find some water in your fuel because of mix of fuel and alcohol. I was informed that when alcohol is distilled they can't get 100% purity, still a bit of water left in it.



#18 curlylegend

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Posted 11 August 2020 - 09:01 pm

Unless it's different where you are, you will find some water in your fuel because of mix of fuel and alcohol. I was informed that when alcohol is distilled they can't get 100% purity, still a bit of water left in it.

 

Bastards !



#19 wicklamulla

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Posted 12 August 2020 - 11:41 am

 

Bastards !

 

 

:rotflmmfao:  :lol:  :good:  ;)


spyball alarm/immob, bluespot brake calipers and Stainless hoses, Fournales air adjustable shock with Remote Resevoir, forks raised 10mm thru yokes, racetech linear fork springs in 15 wt oil, Kappa wingrack/luggage, heated grips, Kedo handguards, dual heat controller to power heated jacket liner and or pants!!, Stebel 136DB horn, K&N air filter, colour matched Baglux tank cover (magnetic tank bag modified to fit cover), osram +50% headloight bulbs, headlight protector,"NitramSpecial" parking loight, tail light indicators all running on LED's & incorporate "Lite Buddies", MK7 Scottoiler fitted, taller screen, 2-2 stainless steel CCC's, Devil stainless down pipes. MKI Renntec engine crash bars & sump guard.
engine changed july 2007 on a dyno run it made 79.1BHP / Torque 59.9Had a brief flirtation with a 1999 MKIIa but it blew an exaust valve on the M5 so was sold on to be repaired.

I loike tay and hang sangwiches !

www.kenhogantreeservices.co.uk

http://s33.photobuck...77/wickla/?sc=6



http://reg.imageshack.us/v_images.php

post-1-1150550733.gifpost-1-1150550726.gifpost-1-1150559830.gif


#20 dandywarhol

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Posted 13 August 2020 - 05:27 pm

Crap in your fuel line from dodgy fuel?

 

Nothing worse................  :pimp:

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