last ditch effort

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hawkwind
Posts: 284
Joined: Fri Dec 17, 2010 3:50 pm

last ditch effort

Post by hawkwind » Mon Feb 08, 2016 3:33 pm

Still no luck in getting my POS running.

Symptoms....Starts ok runs until it starts to warm up then stalls, was doing this when hot now when it reaches only about 120Deg F, will start again straight away then stop after aprox 1-2 seconds, will keep doing this until battery exhausted, allow to cool and it repeats as above.

What I have tried to date
Fuel.... checked lines ok, checked pumps ok, pressure 45psi placed inline gauge pressure does not fluctuate, checked flow rates ok more than enough flow at max usage, tank breather ok, replaced malpassi regs with new 1:1 sards, checked flow under gravity from fuel tank and graphed ok, checked methanol aprox 2% higher specific gravity than pure so it has maybe a little water in it but not enough to cause problems ??, had fuel injectors flow tested and cleaned ok, noid light shows they are firing when cranking at least, maps same as when running ok no change.

Spark.... new plugs, new leads, coils ok, cables and connectors ok, removed all plugs and grounded all fire when cranking, noid light shows coils receiving signal when cranking, will start and run briefly on cylinder 1 and 4 disconnected same when 2and 3 disconnected.

compression... cylinders 1 thru 4 static psi in all greater than 170, valve lash checked within tollerences, sticking valve /s ???

timing..... cam position checked atdc ok cam chain ok, sprockets ok, tensioner ok, removed hall sensors and magnets out board of engine, new cam and crank hall sensors, new high temp and strength magnets, crank and home signals being received constantly no missing signals, fixed timing to 10 deg btdc and checked with timing light ok at least when cranking.

Electricial wiring and halteck ....cam sensor new and ok, crank sensor new ok, checked MAP with vacuum and pressure is reading both ways, water temp ( really oil temp ) working, air temp reading ok, TPS reading 0 to 100 % ok, double checked fuel maps and ignition maps ok, correction maps same as before when it was running, checked intake rubbers for air leaks ok, has battry tested ok but got a new one anyway, all earths ok less than 0.01 ohm difference anywhere on bike, checked all connectors seen tight and secure.

I have reached my limit of things to check any thing I missed ??? ok engine guru's what else to look for?

cheers Gary
Vehicle......................A new creation.
Designed by................Troglodyte.
Engineered/ built by......Rustic.
Financed by.................Nickles & Dimes.
Rider......................... Tardus Vetus Inflatio

harky
Posts: 163
Joined: Fri Feb 09, 2007 9:03 am
Location: Adelaide

Re: last ditch effort

Post by harky » Mon Feb 08, 2016 4:03 pm

Ok
Let me be the first , the 2 pin kill switches lots of people use are " crap" ang give all sorts of trouble when they are old , dirty,or have been activated lots ,
Some will say , what about the temp thing , well the kill switches on load / time still gives lots of trouble , I use a " switch"
A lar outboard kill switch , marine grade , water prof , and switches , not crapy 2 pin contacts !
There after that rave I feel better
Hope your problem is that simple
Cheers
Harky
harky
DLRA #643
so far 120mph for$2000---imagine how fast I can go for $20,000

hawkwind
Posts: 284
Joined: Fri Dec 17, 2010 3:50 pm

Re: last ditch effort

Post by hawkwind » Mon Feb 08, 2016 5:52 pm

Thanks for that Harky :) the kill switch I have is completely enclosed epoxy and custom made with a stainless enclosure....In desperation I have unsecured the complete wiring harness ,( as this bikes wiring is an electricians nightmare )loosened every thing ...the bike now runs and stays running .....started jiggling and tugging on the wiring looms and the engine stops, so there appears to be a loose or broken wire/s somewhere, now the fun of finding it :)....will check the +ve feeds to the injectors/ coils and the ECU first
Vehicle......................A new creation.
Designed by................Troglodyte.
Engineered/ built by......Rustic.
Financed by.................Nickles & Dimes.
Rider......................... Tardus Vetus Inflatio

harky
Posts: 163
Joined: Fri Feb 09, 2007 9:03 am
Location: Adelaide

Re: last ditch effort

Post by harky » Mon Feb 08, 2016 6:08 pm

That's @ least progress ! Wiring is fun for us all
Keep at it
Only a few sleeps to go
Cheers
harky
DLRA #643
so far 120mph for$2000---imagine how fast I can go for $20,000

harky
Posts: 163
Joined: Fri Feb 09, 2007 9:03 am
Location: Adelaide

Re: last ditch effort

Post by harky » Mon Feb 08, 2016 6:31 pm

Me again

http://www.ebay.com.au/itm/190430236333?ul_noapp=true

This is a switch some might find useful
Can be NO ( normally open) or NC ( normally closed ) Or both , unusual but useful if you have a magneto And a fuel pump
Harky
harky
DLRA #643
so far 120mph for$2000---imagine how fast I can go for $20,000

Stayt`ie
Posts: 907
Joined: Fri May 13, 2005 11:47 pm
Location: Mackay

Re: last ditch effort

Post by Stayt`ie » Tue Feb 09, 2016 8:35 am

Hey Gary, looks as thou you might be onto it with the wiring,, The first thing that came to mind was, have you checked your fuels(Methanol) Specific Gravity, .792 @ 20f, might be water :?: :)
First Australian to ride a motorcycle over 200mph at Bonneville,,,

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gennyshovel
Posts: 823
Joined: Tue Mar 29, 2005 10:10 am
Location: Broken Hill

Re: last ditch effort

Post by gennyshovel » Tue Feb 09, 2016 9:07 am

It seems you have caught my "backwards forwards" disease Gary, unfortunately, the only cure involves lining up all the planets ?
Most of mine lined up briefly, then my headgasket decided to water the oil,,,,,,,,,
Step away, and let the thought process do it's thing, is all I can suggest, then hope for a light bulb to appear above your head.
Tiny
Tiny DLRA# 484
Postiebike Racing , created & funded by TwoBob Engineering

hawkwind
Posts: 284
Joined: Fri Dec 17, 2010 3:50 pm

Re: last ditch effort

Post by hawkwind » Wed Feb 10, 2016 2:38 pm

Thanks Ronnie , I purchased an hydrometer for the fuel it measures in around 0.8 to 0.82 so it does have some water in it but not to bad seeing as the fuel is now around 10 years old for the first drum and 8 years old for the second, I'm to stingy/ poor to throw it away and get some fresh stuff. ...the problem is cross fingers hopefully a wiring one just need to trace and fix.
Tiny yes its always the case for under the shade tree engineering when building oddball stuff, everything is done on a shoe string budget ....cheap parts, tools and in my case limited knowledge and skills ..... hopefully I can sort it out before speed week, if not there is always next year.
Vehicle......................A new creation.
Designed by................Troglodyte.
Engineered/ built by......Rustic.
Financed by.................Nickles & Dimes.
Rider......................... Tardus Vetus Inflatio

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Greg Watters
Posts: 758
Joined: Mon Sep 27, 2004 8:57 pm

Re: last ditch effort

Post by Greg Watters » Wed Feb 17, 2016 12:17 pm

Hope its progressing well Gary

Been chasing similar gremlins that turned out to be not enough crimp on connector pins and the wire backing out of the plug (but not enough to see) on the injector harness , lucky one of the primarys did it and it was easy to start diagnosing at idle then with multimeter , secondarys only kick in later when needed but 2 of them had done same

grumm441
Posts: 515
Joined: Mon Nov 14, 2005 5:43 pm
Location: Buggery, a tidy town
Contact:

Re: last ditch effort

Post by grumm441 » Wed Feb 17, 2016 7:31 pm

Hi Gary
try testing some of the continuity of wires with a load on then. say a 55 watt globe. and then give stuff a shake.
Also look for pins in plugs that are pushing out of the plug when you connect them.
G
They make it
I make it work

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