.png "Powered by vBulletin")
Trying to find the source of vibration that peaks around 4500. Felt on foot pegs, exhaust, and handlebars. Vibration can be reproduced revving engine to 4500 standing in neutral. Completed torque checks on bolts, rebuilt clutch, rebuilt carbs and synced. Vibrates slightly less starting out cold. Any ideas?
-
-
Let's assume Suzuki.
What exact model?
What year?
I'm sure I won't be able to solve your problem; I'm just preparing the ground for those that will.
1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red
2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after. -
sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
-
Come on, you 'wrenchers.'
Engine vibration. It doesn't matter Honda or Harley - just solve it.
OP - we're just funnin' ya. No offense.
1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red
2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.Comment
-
Can't solve it until we have some more clues.
And, ... the easiest way to keep a Harley from vibrating is to pull both plug wires.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
-
Tighten ( check ) all the engine mount bolts would be my first step.MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
-
Can't be a Harley. He says it happens at 4,500 RPM.Comment
-
sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
-
81 GS450 L. To the OP: that is everybody's subtle way of saying you should put the bike in your signature.
A little bit of vibration is normal, but excessive vibration is not. Does the bike feel down on power at all? If so, I'd guess your camshaft timing might be off a tooth or two. Do you have the stock L bars? They look like huge tuning forks to me...... maybe heavier bar end weights if that vibration is just buzzing thru the bars....Comment
-
I would've said turn the key off...but I've never ridden one.Originally posted by Steve View Posteasiest way to keep a Harley from vibrating is to pull both plug wires.
.
1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red
2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.Comment
-
Im having a simular issue ... after two hrs of riding your hands are so damn numb , you can barely hold on anymore !!
Going to check my motor mounts ...
Comment
-
After getting my 1100E head ported (with 28mm 1150 intake) and flow balanced , a lot of buzz left my bike.Originally posted by lrgguy View PostIm having a simular issue ... after two hrs of riding your hands are so damn numb , you can barely hold on anymore !!
Going to check my motor mounts ...Comment
-
Not sure about whatever bike this is, but my Suzuki twin has very little vibration anywhere compared to other twins I've ridden, and certainly not especially at 4500 rpm.
Big Rich has some good ideas there..handlebar weights do help a lot on handlebars (I found this out on a Honda, when I took them out)Comment
-
Turning the key off will certainly stop the vibrating, but to keep it from vibrating, pull the plug wires.Originally posted by Rob S. View PostI would've said turn the key off...but I've never ridden one.
Yeah, it's just a play on words, but that's all I have to play with.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
-
4500-5500 is where they vibrate the most.
Its that way so that the balance is good at 7-8000.
If you can ride at 5000 for 10 minutes you should not be able to feel your hands or feet :P
One thing that helps is rubber shock mounted handlebars.Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wikiComment
Comment