Weird start up after cam
Thread Starter
|
Cruiser
Joined: Aug 2022
Posts: 199
Likes: 20
From: Pa
Weird start up after cam
Installed a wood X22E , FM adjustable pushrods, and S&S lifters, SS tappet covers on my 2022 road glide
I have a Bassani 2/1 and SS tear drop air cleaner
flashed the tune from fuel Moto. I think the bike is running OK once it’s warmed up but every time I start it from a cold start, the idle goes up and down erratically for the first 30 to 60 seconds then it seems to stabilize
Any ideas what can cause this or is it more than likely in the tune? Could an exhaust leak at the head pipe gaskets cause this?
once it’s warmed up and I take it out, I don’t think I noticed any hesitation or anything like that
I think I might hear popping once I let off the throttle but I’m not sure if it’s just the sound of the cam while riding since I’ve never installed this on a bike before.
I have a Bassani 2/1 and SS tear drop air cleaner
flashed the tune from fuel Moto. I think the bike is running OK once it’s warmed up but every time I start it from a cold start, the idle goes up and down erratically for the first 30 to 60 seconds then it seems to stabilize
Any ideas what can cause this or is it more than likely in the tune? Could an exhaust leak at the head pipe gaskets cause this?
once it’s warmed up and I take it out, I don’t think I noticed any hesitation or anything like that
I think I might hear popping once I let off the throttle but I’m not sure if it’s just the sound of the cam while riding since I’ve never installed this on a bike before.
Installed a wood X22E , FM adjustable pushrods, and S&S lifters, SS tappet covers on my 2022 road glide
I have a Bassani 2/1 and SS tear drop air cleaner
flashed the tune from fuel Moto. I think the bike is running OK once it’s warmed up but every time I start it from a cold start, the idle goes up and down erratically for the first 30 to 60 seconds then it seems to stabilize
Any ideas what can cause this or is it more than likely in the tune? Could an exhaust leak at the head pipe gaskets cause this?
once it’s warmed up and I take it out, I don’t think I noticed any hesitation or anything like that
I think I might hear popping once I let off the throttle but I’m not sure if it’s just the sound of the cam while riding since I’ve never installed this on a bike before.
I have a Bassani 2/1 and SS tear drop air cleaner
flashed the tune from fuel Moto. I think the bike is running OK once it’s warmed up but every time I start it from a cold start, the idle goes up and down erratically for the first 30 to 60 seconds then it seems to stabilize
Any ideas what can cause this or is it more than likely in the tune? Could an exhaust leak at the head pipe gaskets cause this?
once it’s warmed up and I take it out, I don’t think I noticed any hesitation or anything like that
I think I might hear popping once I let off the throttle but I’m not sure if it’s just the sound of the cam while riding since I’ve never installed this on a bike before.
__________________
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Tourer
Joined: Dec 2021
Posts: 348
Likes: 158
From: Charlotte, NC
Most commonly if you installed the cam & flashed the new tune the learned idle and closed loop parameters have been reset and it will take several run cycles for the ECM to relearn as these are adaptive. If you need any additional assistance you are welcome to reach out to us.
The adaptive process mentioned would happen even if the O2 sensors have been removed?
I am going with the assumption (yep, I did that) that the O2 sensors have been removed with the Bassani 2-1.
Thank you for your patience and teaching moment.
To clarify, if you are changing exhaust systems the O2 sensors should be installed in the new exhaust. O2 sensors are used for closed loop fuel correction, including our tunes.
Thread Starter
|
Cruiser
Joined: Aug 2022
Posts: 199
Likes: 20
From: Pa
definitely transferred the O2 sensors lol
Club Member
Joined: Jul 2018
Posts: 569
Likes: 279
From: Wisconsin
Installed a wood X22E , FM adjustable pushrods, and S&S lifters, SS tappet covers on my 2022 road glide
I have a Bassani 2/1 and SS tear drop air cleaner
Well you said you installed the SS air cleaner, some of the original brackets have to be removed and not put back on with the New Air cleaner, double check the directions on RR the AC, if you leave original brackets in place that may / will cause leaks etc.
I have a Bassani 2/1 and SS tear drop air cleaner
Well you said you installed the SS air cleaner, some of the original brackets have to be removed and not put back on with the New Air cleaner, double check the directions on RR the AC, if you leave original brackets in place that may / will cause leaks etc.
Last edited by 2017M8; Dec 29, 2023 at 07:06 AM.
Trending Topics
Intermediate
Joined: Sep 2020
Posts: 31
Likes: 11
From: Melbourne, Australia
I got a tune from V&H (amazing tune - heaps of power). The revs drop for a half a second about 10 seconds in, sounds like its going to stall, but kicks back up to high idle. This happens every time for the past two years, about 50 cold starts. Doesn't happen when i'm out and restarting, only when starting before riding.
I'm not stressed about it, happy with the tune.
I'm not stressed about it, happy with the tune.
Last edited by OzRGS; Dec 29, 2023 at 04:30 PM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
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
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Stellar HDF Member
Joined: Aug 2020
Posts: 3,167
Likes: 2,207
From: College Station, TX
You really should start your own thread for the specific issues you are having, including the upgrades and tuner you are using to keep any response from being confusing about what they are replying to. And you are more likely to get responses to your questions that may be helpful.
And you could ask a Moderator to move your post for you.
Paul
And you could ask a Moderator to move your post for you.
Paul
Thread
Thread Starter
Forum
Replies
Last Post
