Bike missing
Thread Starter
|
Supporter
Joined: Jul 2008
Posts: 414
Likes: 340
From: Brick NJ
Bike missing
My buddies 76 FXE Superglide (stock) with points removed and replaced with electronic ignition is running good but will miss at times and sound like a pop. He said he messed with the carb (brand new stock Keihin) but to no avail. He hadn't rode the bike in 25 years before he did the S&S oil pump, carb and ingnition. My sugestion was to check the mechanical advance and see if was clean and workin, after all 25 years in storage in a shed is a long time. Any help is appreciated.
Road Warrior
Joined: Dec 2007
Posts: 1,286
Likes: 64
From: SoCal
warpigs, What are the operating conditions when it misfires? RPM, engine warmed up or cold, accelerating/decelerating/cruising along, fresh fuel in the tank, popping out the carb or exhaust, you know, that kind of info. His electronic ignition still uses the mechanical advance weights? If it does, getting in there and cleaning, lubing and installing brand new advance weight springs sure couldn't hurt. I highly recommend installing new springs and lube every tune up.
Thread Starter
|
Supporter
Joined: Jul 2008
Posts: 414
Likes: 340
From: Brick NJ
He said the bike starts right up no problem, and he said when cold 2 to 3 kicks will kick it over if using the kicker. He said it'll do it even when fully warmed, but said it overall runs good just can't solve the intermittet miss.
Intermediate
Joined: Nov 2008
Posts: 38
Likes: 3
From: Denver
As the other poster said, I wouild get the mechanical weights out and make sure they are lubed. I alwys used anti-sieze. Check intake seals. You could spray a little carb cleaner or water on the seals see if you hear any different. Those o-rings after a long time get real solid. Dump the bowl a few times. it gets like fishfood looking stuff in there. Petcock filter. Take a look witha flashlight. Many factory tanks rust inside.
Road Warrior
Joined: Aug 2008
Posts: 1,306
Likes: 864
From: Sheboygan, WI
does it happen when he's on the gas hard for a bit? if so, maybe check for lack of available fuel coming into the carb(low fuel flow) which can be caused by improperly vented tanks or plugged fuel filter. Just an idea, since we don't know any specifics on the symptom.
Advanced
Joined: Apr 2008
Posts: 94
Likes: 2
From: CT
Install slightly stiffer springs on the advance weights and make sure the pins are lubed with high temp grease.
Trending Topics
Road Warrior
Joined: Dec 2007
Posts: 1,854
Likes: 20
From: Eagle River WI
Sounds like the carb to me Keihins can be a bassterd to jet Is it a low speed pop or a hi speed pop ?
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
Thread
Thread Starter
Forum
Replies
Last Post