Daytona 675 Fault

Dr. DaveJPS · World Chat Champion Joined: 24 May 2008 Karma :

Hi all,

Thought I'd ask on here to see if any of you lot have any suggestions as even the Triumph factory are stumped... Laughing

My 675 was running fine on monday, put it in the garage on monday night. On tuesday morning it wouldnt start, turned over but wouldn't fire. Evil or Very Mad

Changed the battery and still nothing, engine turns over but nothing. No change in noises (fuel pump is priming fine).

So arranged collection from my local Triumph dealer, who are currently having a look. The ECU is coding no errors, the CPS is reading the correct resistance and it doen't appear the loom had any issues. The garage have phoned Triumph techincal but they can't suggest anything.
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chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

Check the Sidestand/Clutch/kill switch

Also Petrol!
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MarJay · But it's British! Joined: 15 Sep 2003 Karma :

Does it have an alarm or immobiliser?
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Polarbear · Super Spammer Joined: 24 Feb 2007 Karma :

The wonderful world of the modern dealership/mechanic. If there isn't a fault code they are stumped. Evil or Very Mad

Basically it needs air, fuel a spark and compression.

I'm presuming we can rule out compression

So it will have enough air (unless a family of mice have taken up residence in the air box)

That leaves fuel and spark,

Test spark by removing plug, lying it on cylinder head a turn over.

If there is no spark, your problem stems from there.

If there is a spark it has to be fuel.

Start from there and eliminate things logically.
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Dr. DaveJPS · World Chat Champion Joined: 24 May 2008 Karma :

In answer to your questions:

-Wasn't the sidestand/clutch/kill switch as they all worked as they should.

- No alarm system fitted

- no spark is the problem

Heard back from the garage last night, and after talking to the triumph's head of technical service they ran some further diagnostics and pinned it down to the ... Crank Position Sensor.

Which was what Dr.Google suggested the problem was and what I told them I thought it was. It seems this a a weak point on the daytona 675 (pre 2012) and the annoying thing is its "wired" into the stator, so officially have to replace both the stator and the sensor, which is £323.17 from triumph. Thankfully i've found a third party supplier who can do it for more than half that!
____________________
"intelligent inattention is preferable to unintelligent tinkering"
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