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Jun 14th, 2026
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Joined: Mar 2015
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Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Mar 2015
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From a post on another forum,
6 May at 20:34
Does anyone know which cylinder doesn't fire when on "safety mode"? I've got my left cylinder that seems to have spark but no fuel. Washed it yesterday, pushed it back in the garage (dumb - I should have ran it dry) and then today it fired up, started missing on one cylinder and I shut it off. Felt like safe-mode. Now won't start and isn't getting fuel on the left side... trying to determine if this might be a shut-off problem, or a fuel line problem. Fuel pump runs when I turn the key, battery fully charged, fuel getting to right cylinder. Thanks in advance. Beautiful day, and another day in the shop, not on the road.
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Joined: Feb 2014
Posts: 368 Likes: 1
Learner Plates Off!
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Learner Plates Off!
Joined: Feb 2014
Posts: 368 Likes: 1 |
I had an issue with the same symptoms, happened literally overnight. Turned out to be a broken exhaust valve spring. Do a compression test on the bad cylinder. With the easy start cams, you should get about 50 psi. I was getting zero!
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Joined: Feb 2016
Posts: 103
L - Learner Plates On
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L - Learner Plates On
Joined: Feb 2016
Posts: 103 |
Sorry to say had a similar problem and it turned out to be a valve spring, in my case the inlet valve.
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Joined: Aug 2017
Posts: 159
L - Learner Plates On
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L - Learner Plates On
Joined: Aug 2017
Posts: 159 |
From a post on another forum,
6 May at 20:34
Does anyone know which cylinder doesn't fire when on "safety mode"? I've got my left cylinder that seems to have spark but no fuel. Washed it yesterday, pushed it back in the garage (dumb - I should have ran it dry) and then today it fired up, started missing on one cylinder and I shut it off. Felt like safe-mode. Now won't start and isn't getting fuel on the left side... trying to determine if this might be a shut-off problem, or a fuel line problem. Fuel pump runs when I turn the key, battery fully charged, fuel getting to right cylinder. Thanks in advance. Beautiful day, and another day in the shop, not on the road. By the time you get yours, the V Twin will be powered by nuclear fusion, so no need to worry.
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Joined: Jul 2013
Posts: 3,735 Likes: 82
Talk Morgan Addict
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Talk Morgan Addict
Joined: Jul 2013
Posts: 3,735 Likes: 82 |
I thought that Skip fire alternated the non firing cyclider.
Anyway, a post 2014 car will have the urban cooling fan and no skipfire so unfortunately it's something else.
Red Leader 
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Joined: Apr 2013
Posts: 1,370 Likes: 11
Has a lot to Say!
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Has a lot to Say!
Joined: Apr 2013
Posts: 1,370 Likes: 11 |
I thought that Skip fire alternated the non firing cyclider. It does alternate the firing which is why it is really rough when it happens and the start of the skip fire sequence is totally random due to it being triggered by the temperature.
What's your mileage? Who cares. Is it practical? See #1. What happens when it rains? You get wet.
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Joined: Nov 2013
Posts: 1,947
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,947 |
John I had a failure to proceed (RR speak for wont start) after I washed mine. It was trying but failing to start. It turned out to be damp under the plug connectors to the injectors confusing fuel delivery. Pull the connectors off & make sure completely dry. Note to self keep the hose away from the top of the engine.
Tim
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Joined: Mar 2015
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Talk Morgan Regular
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OP
Talk Morgan Regular
Joined: Mar 2015
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Thank you for your help.
John.
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