M8 DIES on cold startup (VIDEO INCLUDED)
Stellar HDF Member
Joined: Sep 2009
Posts: 2,113
Likes: 666
Sounds like a loss of prime pressure. Try cycling the ignition on and off (with kill switch in run position) 3 or 4 times BEFORE trying to start it for the first time or after it has sat for extended period.
Let us know if that changes it.
Could be something loose or out of position seals in the fuel pump/regulator/filter system inside the tank. A proper fuel pressure analysis would verify or rule out these issues before opening the tank.
Bob
Let us know if that changes it.
Could be something loose or out of position seals in the fuel pump/regulator/filter system inside the tank. A proper fuel pressure analysis would verify or rule out these issues before opening the tank.
Bob
Last edited by FLTRI17; Dec 14, 2019 at 05:07 PM.
HD EFI Guru
Joined: Jan 2008
Posts: 4,462
Likes: 4,718
Hello all,
I traded my 55k 2010 FLHTC for a 2019 FLHX in March. I put 10k on it over the summer and traded for a 2020 FLHR in October. This bike is a keeper... I think.
I've got a problem where in 45+ degree weather, it starts fine. In 40 degree weather, it starts and "wants" to die. In 30 degree weather (I ride year round) it'll actually fire up and dies.
I bought the bike (as well as the previous FLHX) in Dallas but live in NW OK. I asked the dealer in OKC at my 1k about the issue and they were clueless. I sent a text to the original dealer in Dallas and didn't get much of an answer.
Anyone have similar issues??? I can't find any helpful threads online. If I'm missing one, please point me in the right direction.
I traded my 55k 2010 FLHTC for a 2019 FLHX in March. I put 10k on it over the summer and traded for a 2020 FLHR in October. This bike is a keeper... I think.
I've got a problem where in 45+ degree weather, it starts fine. In 40 degree weather, it starts and "wants" to die. In 30 degree weather (I ride year round) it'll actually fire up and dies.
I bought the bike (as well as the previous FLHX) in Dallas but live in NW OK. I asked the dealer in OKC at my 1k about the issue and they were clueless. I sent a text to the original dealer in Dallas and didn't get much of an answer.
Anyone have similar issues??? I can't find any helpful threads online. If I'm missing one, please point me in the right direction.
Off Topic
Saw a post of yours from a few yrs back. Wanted to know if you still had the hardware for the V2H Fairing? I haven't been on the forum in years, but I researched and found you posted awhile back.
Thread Starter
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Cruiser
Joined: Jul 2014
Posts: 213
Likes: 24
From: Oklahoma
Sold that fairing setup to a forum member last week.
For those still interested in the original topic, still haven't had my bike to the dealer. -and it's definitely still dying on cold start up, problem hasn't fixed itself.
Will update when I've gotten it to the dealer. Hopefully I can get that done before winter is over.
For those still interested in the original topic, still haven't had my bike to the dealer. -and it's definitely still dying on cold start up, problem hasn't fixed itself.
Will update when I've gotten it to the dealer. Hopefully I can get that done before winter is over.
Stage II
Joined: Nov 2020
Posts: 2
Likes: 0
From: Kansas
Were you ever able to figure out the problem? My recently purchased 17 street glide has been doing the exact same thing. Dealer said it sounded like a pin hole in the fuel line. Seems like if I prime it twice I dont have any issues with it stalling on start up.
Tourer
Joined: Aug 2019
Posts: 273
Likes: 150
From: Colorado
If it works after priming it twice it's either a bad fuel pump or a leaky injector.
Stage II
Joined: Nov 2020
Posts: 2
Likes: 0
From: Kansas
I'm not even remotely close to being mechanically inclined, but makes sense. I called a different dealer just to see what they said. They also said it could be pin hole in a line in the tank or possibly either one of the things you said. Hopefully the post originator will reply as to what fixed his bike because mine is the exact same as his in the videos where it dies right after startup and then starts normal and stays on the second go.
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Tourer
Joined: Aug 2019
Posts: 273
Likes: 150
From: Colorado
I'm not even remotely close to being mechanically inclined, but makes sense. I called a different dealer just to see what they said. They also said it could be pin hole in a line in the tank or possibly either one of the things you said. Hopefully the post originator will reply as to what fixed his bike because mine is the exact same as his in the videos where it dies right after startup and then starts normal and stays on the second go.
