1993 Fatboy Running Rough

glider · Oct 27th, 2009, 08:43 AM

It sounds like you have something under the needle in the inlet valve.

Buster · Oct 27th, 2009, 01:22 PM

Quote:

Originally Posted by glider

It sounds like you have something under the needle in the inlet valve.

I'd still be concerned about the noise, something is a miss somewhere and I tend to lean towards the lifters.

Knuckles · Oct 27th, 2009, 01:27 PM

Ya I agree, I am going to dig into the front cylinder tonight.

Removed the front valve cover to check the springs. I can't tell if there is a broken spring. I also watched the springs while turning the bike over, the only things that I noticed is the front rocker arm would move a few times before the rear one would (2-4 times) before the rear rocker arm on the same cylinder. Also the front spring did not seem as stiff as the rear when moving.

I also noticed but not sure if its suppose to be like this, the pushrods seem to be riding on the walls of the pushrod sleeve

glider · Oct 28th, 2009, 08:59 AM

Is there adjustable push rods in the motor?

Knuckles · Oct 28th, 2009, 09:09 AM

Iam not sure if they are adjustable push rods or not. I bought the bike used and have no history of the bike. Is there a way to tell if they are adjustable?

glider · Oct 28th, 2009, 09:12 AM

Lift up the covers to expose the lower portion push rods to see if there is the adjuster nuts there..

Knuckles · Oct 28th, 2009, 09:16 AM

Cool, I will take a look at that tonight, and if they are they just may need to be adjusted?

glider · Oct 28th, 2009, 09:22 AM

When you mentioned "... I noticed is the front rocker arm would move a few times before the rear one would" there's something not normal in there and this is where you start the process of finding it.

Knuckles · Oct 28th, 2009, 09:26 AM

Glider, Thanks for the info! So the rockers should move one after the other?

glider · Oct 28th, 2009, 09:28 AM

In most cases yes

Oct 27th, 2009, 08:43 AM	#21
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 20,469 My Mood:	Re: 1993 Fatboy Running Rough It sounds like you have something under the needle in the inlet valve. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Oct 27th, 2009, 01:27 PM	#23
Knuckles Start The Engine Ride: 1993 Fatboy Join Date: Oct 20th, 2009 Posts: 18 My Mood:	Ya I agree, I am going to dig into the front cylinder tonight. Removed the front valve cover to check the springs. I can't tell if there is a broken spring. I also watched the springs while turning the bike over, the only things that I noticed is the front rocker arm would move a few times before the rear one would (2-4 times) before the rear rocker arm on the same cylinder. Also the front spring did not seem as stiff as the rear when moving. I also noticed but not sure if its suppose to be like this, the pushrods seem to be riding on the walls of the pushrod sleeve Last edited by NEWHD74FAN; Oct 29th, 2009 at 01:19 AM. Reason: Merge Posts

Oct 28th, 2009, 08:59 AM	#24
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 20,469 My Mood:	Re: 1993 Fatboy Running Rough Is there adjustable push rods in the motor? __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Oct 28th, 2009, 09:09 AM	#25
Knuckles Start The Engine Ride: 1993 Fatboy Join Date: Oct 20th, 2009 Posts: 18 My Mood:	Re: 1993 Fatboy Running Rough Iam not sure if they are adjustable push rods or not. I bought the bike used and have no history of the bike. Is there a way to tell if they are adjustable?

Oct 28th, 2009, 09:12 AM	#26
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 20,469 My Mood:	Re: 1993 Fatboy Running Rough Lift up the covers to expose the lower portion push rods to see if there is the adjuster nuts there.. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Oct 28th, 2009, 09:16 AM	#27
Knuckles Start The Engine Ride: 1993 Fatboy Join Date: Oct 20th, 2009 Posts: 18 My Mood:	Re: 1993 Fatboy Running Rough Cool, I will take a look at that tonight, and if they are they just may need to be adjusted?

Oct 28th, 2009, 09:22 AM	#28
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 20,469 My Mood:	Re: 1993 Fatboy Running Rough When you mentioned "... I noticed is the front rocker arm would move a few times before the rear one would" there's something not normal in there and this is where you start the process of finding it. __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

Oct 28th, 2009, 09:26 AM	#29
Knuckles Start The Engine Ride: 1993 Fatboy Join Date: Oct 20th, 2009 Posts: 18 My Mood:	Re: 1993 Fatboy Running Rough Glider, Thanks for the info! So the rockers should move one after the other?

Oct 28th, 2009, 09:28 AM	#30
glider Community Liaison Ride: 07 Road King Classic Join Date: Jun 21st, 2007 Posts: 20,469 My Mood:	Re: 1993 Fatboy Running Rough In most cases yes __________________ Psssst! Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. click me!>>Self Help Information and Tips<< click me!

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1993 Fatboy Running Rough

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