Is this normal?????
Thread Starter
|
Intermediate
Joined: Apr 2022
Posts: 29
Likes: 9
From: Australia
Is this normal?????
Do Softails shake Slightly at idle when hot .
I have a 09 fxst with 20000 KMS the clock and I've noticed it shakes slightly at ide when hot . Also alot of decel pop and poor fuel economy....small tap which is intermittent from primary and she seems to get quite hot....any clues.
It's all quite subtle and it still rides well
She's under exttended warranty as I got It used from Harley heaven about 6 months ago and IV only put 2000 on her.
I have a 09 fxst with 20000 KMS the clock and I've noticed it shakes slightly at ide when hot . Also alot of decel pop and poor fuel economy....small tap which is intermittent from primary and she seems to get quite hot....any clues.
It's all quite subtle and it still rides well
She's under exttended warranty as I got It used from Harley heaven about 6 months ago and IV only put 2000 on her.
Grand HDF Member
Joined: Jan 2019
Posts: 3,623
Likes: 2,883
From: Mostly Florida, some Michigan
Hot is normal for a Harley.
Decel pop depends on the exhaust you are running and is quite normal normal.
Can't say about the shaking without feeling it in person. My 08 Heritage shakes very little at idle compared to my 16 Ultra.
Poor fuel mileage depends on many factors: how you ride, do you have a tuner, hi-flow air cleaner, cats, exhaust, etc.
Can you define 'poor' milage.
Decel pop depends on the exhaust you are running and is quite normal normal.
Can't say about the shaking without feeling it in person. My 08 Heritage shakes very little at idle compared to my 16 Ultra.
Poor fuel mileage depends on many factors: how you ride, do you have a tuner, hi-flow air cleaner, cats, exhaust, etc.
Can you define 'poor' milage.
Thread Starter
|
Intermediate
Joined: Apr 2022
Posts: 29
Likes: 9
From: Australia
Hot is normal for a Harley.
Decel pop depends on the exhaust you are running and is quite normal normal.
Can't say about the shaking without feeling it in person. My 08 Heritage shakes very little at idle compared to my 16 Ultra.
Poor fuel mileage depends on many factors: how you ride, do you have a tuner, hi-flow air cleaner, cats, exhaust, etc.
Can you define 'poor' milage.
Decel pop depends on the exhaust you are running and is quite normal normal.
Can't say about the shaking without feeling it in person. My 08 Heritage shakes very little at idle compared to my 16 Ultra.
Poor fuel mileage depends on many factors: how you ride, do you have a tuner, hi-flow air cleaner, cats, exhaust, etc.
Can you define 'poor' milage.
It back fires/ Decel pop the moment I let off the gass unless but I can ride in a fashion that stops it ...it feels hesitant and doesn't feel like it accelerates quite like it did. Also iv noticed the pipes are very sooty.
Starting to think it could be a slowly deteriorating coil maybe?
I mainly doin highway kms on it and I try not to be too aggressive around town co it's my only transport.
Seasoned HDF Member
Joined: May 2019
Posts: 5,884
Likes: 11,267
From: NE Ohio
on a stock engine...and most miles are hi-way to boot?? that's terrible mileage.
with the other stuff you have going on, I'd get it checked out (assuming your warranty will cover it?)
..L.T.A.
Thread Starter
|
Intermediate
Joined: Apr 2022
Posts: 29
Likes: 9
From: Australia
Perhaps a tuning thing. I run premium 98. Said it cleans engines and gives better fuel economy....I'm stumped....it starts every timeReally hoping the dealer doesn't screw me over when I bought 3 year extended warranty
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,144
Likes: 11,219
From: San Diego, CA
Hopefully they will find something...it's imported to Australia from America so it sat on a ship at some point.. Just wondering weather it's electronic or maybe the injectors clogged as it sat without being started for a while in the showroom. Its always had less fuel economy then it should and decel poped a fair bit.. sooty pipes etc.
Perhaps a tuning thing. I run premium 98. Said it cleans engines and gives better fuel economy....I'm stumped....it starts every timeReally hoping the dealer doesn't screw me over when I bought 3 year extended warranty
Perhaps a tuning thing. I run premium 98. Said it cleans engines and gives better fuel economy....I'm stumped....it starts every timeReally hoping the dealer doesn't screw me over when I bought 3 year extended warranty
Who told you that......?? I suspect is someone trying to sell you 98 octane, or some gas additives..... that smells of marketing hogwash...
Octane, most basically, allows you to tune with more spark advance, without detonation...
If you have a well tuned engine, running in the proper gear..... if it's tuned on 91 octane, you can get serious detonation under certain conditions if you run 89 octane. If you run higher octane, you will get no benefit... no "cleaning" and no "better mileage"...
Thread Starter
|
Intermediate
Joined: Apr 2022
Posts: 29
Likes: 9
From: Australia
Who told you that......?? I suspect is someone trying to sell you 98 octane, or some gas additives..... that smells of marketing hogwash...
Octane, most basically, allows you to tune with more spark advance, without detonation...
If you have a well tuned engine, running in the proper gear..... if it's tuned on 91 octane, you can get serious detonation under certain conditions if you run 89 octane. If you run higher octane, you will get no benefit... no "cleaning" and no "better mileage"...
Octane, most basically, allows you to tune with more spark advance, without detonation...
If you have a well tuned engine, running in the proper gear..... if it's tuned on 91 octane, you can get serious detonation under certain conditions if you run 89 octane. If you run higher octane, you will get no benefit... no "cleaning" and no "better mileage"...
Trending Topics
Seasoned HDF Member
Joined: Sep 2008
Posts: 14,144
Likes: 11,219
From: San Diego, CA
I was commenting specifically about the octane number of 98 you mentioned.....
In the states, we use the (R+M)/2 octane rating, which is the average of the RON (research octane number) and the MON (motor octane number).... Our normal premium fuel is 91 octane... but there are some higher octane fuels available, in different parts of our country... I thought you were referring to one of those higher than average premium octane fuels...
I'm not sure how you figure/label octane down under... So if your normal premium fuel is rated as 98 octane, then that is the appropriate fuel to use for you...
I'm sorry if I confused things...
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Thread Starter
|
Intermediate
Joined: Apr 2022
Posts: 29
Likes: 9
From: Australia
My bad..... I just noticed you are in Austrailia.... OOPs...
I was commenting specifically about the octane number of 98 you mentioned.....
In the states, we use the (R+M)/2 octane rating, which is the average of the RON (research octane number) and the MON (motor octane number).... Our normal premium fuel is 91 octane... but there are some higher octane fuels available, in different parts of our country... I thought you were referring to one of those higher than average premium octane fuels...
I'm not sure how you figure/label octane down under... So if your normal premium fuel is rated as 98 octane, then that is the appropriate fuel to use for you...
I'm sorry if I confused things...
I was commenting specifically about the octane number of 98 you mentioned.....
In the states, we use the (R+M)/2 octane rating, which is the average of the RON (research octane number) and the MON (motor octane number).... Our normal premium fuel is 91 octane... but there are some higher octane fuels available, in different parts of our country... I thought you were referring to one of those higher than average premium octane fuels...
I'm not sure how you figure/label octane down under... So if your normal premium fuel is rated as 98 octane, then that is the appropriate fuel to use for you...
I'm sorry if I confused things...
It is an American import... you think it may be tuned for lower octane?.. would it matter?.
I'm legitimately stumped...I remember a guy telling me that back in the day people used to Run street rod V8s on avgass and it made them run sooty as hell. Not quite sure if it's applicable in the this instance.. if it is the fuel .. could the thick soot layer have coated an o2 sensor?
Road Warrior
Joined: Apr 2014
Posts: 1,330
Likes: 395
From: Squamish, B.C.
Your exhaust pipes are black and very low m.p.g. indicate running way to rich!!
You need a tune-up or one of the sensors on your bike isn't doing it's job.
Your premium gas is the right one to use!!
Changing octane won't help your problem.
It's under warranty, have it looked at!! Your already paying for it.
You need a tune-up or one of the sensors on your bike isn't doing it's job.
Your premium gas is the right one to use!!
Changing octane won't help your problem.
It's under warranty, have it looked at!! Your already paying for it.