Cuts out when accelerating

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Jun 8, 2021 | 07:42 PM

#21

MyFavRk

Seasoned HDF Member

Joined: Nov 2018

Posts: 10,833

Likes: 6,485

From: Canada Flats

I'm wondering about the crank sensor , symptoms are similar and sometimes won't even throw a code , could replace that and see , cheap enough .

Also , if it's possible , check the fuel pressure , should be approx 55 to 60 psi , you may only need a new regulator , #10

I'm not sure if you've checked or not , but the idle speed actuator could be the issue as well , could try cleaning it with some tb cleaner and see if the condition improves . I'm not very familiar with them , but I'm guessing cleaning that would be the same as cleaning the iac on mine . #16

https://partsfinder.onlinemicrofiche...UEL%20INJECTED

Jun 9, 2021 | 05:12 AM

#22

Stiggy

Seasoned HDF Member

Joined: Nov 2010

Posts: 17,548

Likes: 7,173

From: Oxford, Nc

The HD service departments used a "Scanalyzer" (sp?) to read the codes of MM injected bikes and as I understand it, some of the later diagnostic tools could still read the MM system too. Call a dealership and see if they still have the capability to plug an '01 bike in for you? (I did it once and they charged me about $65,)

Jun 10, 2021 | 12:16 AM

#23

Mr. Mike

Road Captain

Joined: Apr 2010

Posts: 686

Likes: 349

From: Central Utah

“Any ideas?”
Uhhhhhh bad MAP sensor would produce backfire, hesitation and overall crappy operation.
Seems you’ve covered a lot of ground on this one, but trouble persists.
I tried an aftermarket MAP that “supposedly” fit my model, but the fluted rubber plug didn’t fit snug like the OEM one did.

Jun 10, 2021 | 09:36 PM

#24

SnapBack

Thread Starter

Intermediate

Joined: May 2021

Posts: 25

Likes: 7

From: texas

Think I bout got it!

So turns out it was check valve line goin from filter to check valve. Received the new one I ordered and switched out old set today. Put in fresh gas primed the lines and it fired right up accelerated good but wouldn’t you know it I look down and the return line check valve is leaking like a son of a b*#%¥ so now I have to rebuild or replace that before I can actually ride so that sucks a$$ but hey I’m 99% sure I fixed the problem. I won’t know for sure till I ride it. I appriciate all the help. Could not have done it with out y’all thanx again

Jun 12, 2021 | 06:16 PM

#25

SnapBack

Thread Starter

Intermediate

Joined: May 2021

Posts: 25

Likes: 7

From: texas

So I rode a couple miles and plugs fouled. Replaced plugs, bike ran great for about 8 more miles then started bogging down when throttled until it finally died and wont start once again. Had to trailer it home last night and haven’t had a chance to look at it yet. I’m so frustrated with this sh$@

Jun 13, 2021 | 08:23 AM

#26

MyFavRk

Seasoned HDF Member

Joined: Nov 2018

Posts: 10,833

Likes: 6,485

From: Canada Flats

I understand your frustration , been there , be patient , it'll come to you . Some of the most frustrating repairs have taught me more than the easy fix's . It's a great feeling when you finally get it solved on your own , and then be able to pass the knowledge on to someone else .

Take another look at your fuel connections and make sure the quick connects are fully seated , o-ring didn't bind inside , put a little engine oil on them will help making the install easier .