Author Topic: Vibration (Read 47911 times)

MotoGoosy · « **on:** February 16, 2015, 11:50:15 PM »

Got an '02 EV11, love the style, riding position, sound, but the vibration is horrendous, compared to my other bikes. Feels like a John Deere single-cylinder tractor. Not bad on level ground or going downhill, but going uphill or over 3,000 rpm feels like it's coming apart. You too?

oldbike54 · « **Reply #1 on:** February 16, 2015, 11:52:32 PM »

Nope , something is wrong with that piece . TBs out of sync probably .

Dusty

rodekyll · « **Reply #2 on:** February 16, 2015, 11:53:54 PM »

There's something out of adjustment. The EV's are very smooth for a twin. Mine is smooth enough that the mirrors are clear at almost any speed. No vibration drama at all.

father guzzi obrian · « **Reply #3 on:** February 16, 2015, 11:54:47 PM »

You appear to have a problem, others will chime in with various things to check. I have an 02 Cal SS with the same engine, basically same bike, smooth as silk, and smoother the higher it revs. I would start with a good tune and TPS setup. Check engine mounting bolts and see if the header is rubbing on the front mounting bolts or frame

Wildguzzi.com · « **Reply #3 on:** February 16, 2015, 11:54:47 PM »

MotoGoosy · « **Reply #4 on:** February 16, 2015, 11:55:37 PM »

ken farr · « **Reply #5 on:** February 16, 2015, 11:57:42 PM »

Quote from: MotoGoosy on February 16, 2015, 11:55:37 PM

TBs?

Throttle bodies.

kjf

oldbike54 · « **Reply #6 on:** February 16, 2015, 11:58:52 PM »

Quote from: MotoGoosy on February 16, 2015, 11:55:37 PM

TBs?

Throttle bodies . Your description of the engine vibrating under load indicates one cylinder is "leading" the other .

Dusty

MotoGoosy · « **Reply #7 on:** February 17, 2015, 12:03:31 AM »

That's what it feels like. At idle, it's the opposite of most bikes, the engine sits still and the bike shakes.

oldbike54 · « **Reply #8 on:** February 17, 2015, 12:10:27 AM »

Quote from: MotoGoosy on February 17, 2015, 12:03:31 AM

That's what it feels like. At idle, it's the opposite of most bikes, the engine sits still and the bike shakes.

:D :D :D :D

They all feel that way at idle , kind of an octopus delusion ;D Seriously , what other types of bike ;Ds do you own ? Guzzies and flat twin beemers tend to shake at low RPMs due to the crankshaft design induced rocking couple . As Rodekyll stated , should smooth out as the engine speed increases . Sounds like the bike needs a good tune up .

Dusty

rodekyll · « **Reply #9 on:** February 17, 2015, 12:16:28 AM »

Quote from: oldbike54 on February 17, 2015, 12:10:27 AM

:D :D :D :D

They all feel that way at idle , kind of an octopus delusion ;D Seriously , what other types of bike ;Ds do you own ? Guzzies and flat twin beemers tend to shake at low RPMs due to the crankshaft design induced rocking couple . As ~~Rodekyll~~ father guzzi obrian stated , should smooth out as the engine speed increases . Sounds like the bike needs a good tune up .

Dusty

But I'll agree with him. :) I get a little buzz at about 4800 for about 75 rpm either way. It might be where the general bike harmonics collide rather than the engine. I'm only doing 4800 on my way to some other revs though, so it doesn't really matter.

MotoGoosy · « **Reply #10 on:** February 17, 2015, 12:17:29 AM »

Harley 883, Kawasaki 540 and Mean Streak 1600.

MotoGoosy · « **Reply #11 on:** February 17, 2015, 12:19:35 AM »

No buzz, just shudder at all speeds. Maybe I'm only running on one cylinder.

oldbike54 · « **Reply #12 on:** February 17, 2015, 12:23:42 AM »

David, so I am a bit clairvoyant ;D

Hmm , 3 other bikes that shake a bit , yeah , something is wrong with the EV .

Dusty

rodekyll · « **Reply #13 on:** February 17, 2015, 12:33:09 AM »

I'll tell you what -- you've got all those other bikes -- what do you need with a paint mixer with a major malfunction? Send it to me and I'll give it a proper burial. No charge, cuz you seem like a nice guy.

oldbike54 · « **Reply #14 on:** February 17, 2015, 12:37:33 AM »

No doubt David , you are all heart :D

Dusty

MotoGoosy · « **Reply #15 on:** February 17, 2015, 12:40:57 AM »

Well, with just 9,000 miles on it, I'm not ready to dump it yet, but it sure is a relief to ride the other bikes after riding this one.

oldbike54 · « **Reply #16 on:** February 17, 2015, 12:52:36 AM »

What is your location ?

Dusty

crc · « **Reply #17 on:** February 17, 2015, 01:01:11 AM »

id agree with the others, tps and a good going over for loose engine mounting etc. more than likely nothing wrong with the uj, but id pull the swingarm and check anyway, no doubt the drive splines have never been greased so its all a good thing to do

fotoguzzi · « **Reply #18 on:** February 17, 2015, 07:10:36 AM »

In case you don't know... These motors are not like a Harley and you don't want to lug the motor, it needs to be rev'd.. at speed choose a gear that keeps the revs above about 4,000..

Dean Rose · « **Reply #19 on:** February 17, 2015, 07:25:38 AM »

Quote from: fotoguzzi on February 17, 2015, 07:10:36 AM

In case you don't know... These motors are not like a Harley and you don't want to lug the motor, it needs to be rev'd.. at speed choose a gear that keeps the revs above about 4,000..

That may be the problem for a new to Guzzi owner.

Dean

Kev m · « **Reply #20 on:** February 17, 2015, 07:29:56 AM »

REALLY good point about keeping the revs up, otherwise lugging the motor is going to make it feel like crap.

And there is going to be some vibration in the normal rev range (3-4k is a good place to keep this motor), but even then it shouldn't be as bad as an 883 (well, assuming it's a solidmount, if it's a rubbermount compare by putting your knee against the air cleaner at speed, it should be less than that).

If there is a lot of vibration in the proper range, then as others have mentioned the first place to look is at throttle body balance...get them on a set of carb balance sticks and see the vacuum differential between the two. That will tell you right away if it needs to be synchronized.

Sasquatch Jim · « **Reply #21 on:** February 17, 2015, 07:33:06 AM »

Put a young hottie on the pillion and let her evaluate the quailty of the vibraton.

redrider · « **Reply #22 on:** February 17, 2015, 07:37:26 AM »

Viberider.

Sounds like one cylinder operation to me. BTDT.

MotoGoosy · « **Reply #23 on:** February 17, 2015, 08:48:56 AM »

San Diego

MotoGoosy · « **Reply #24 on:** February 17, 2015, 12:02:48 PM »

Haven't ever taken it to 4,000. Runs smoothest at 2300 on a flat surface. Geez, it redlines at 7.

MotoGoosy · « **Reply #25 on:** February 17, 2015, 12:03:48 PM »

The hard-mounted 883 is infinitely smoother.

Two Checks · « **Reply #26 on:** February 17, 2015, 12:11:18 PM »

I think we have found our problem!

Dean Rose · « **Reply #27 on:** February 17, 2015, 12:12:14 PM »

Quote from: MotoGoosy on February 17, 2015, 12:02:48 PM

Haven't ever taken it to 4,000. Runs smoothest at 2300 on a flat surface. Geez, it redlines at 7.

Ride it like you stole it.

Dean

oldbike54 · « **Reply #28 on:** February 17, 2015, 12:15:07 PM »

Quote from: MotoGoosy on February 17, 2015, 12:03:48 PM

The hard-mounted 883 is infinitely smoother.

Maybe one of the other S.D. area members can help out , no doubt something is amiss .

Dusty

190 Octane · « **Reply #29 on:** February 17, 2015, 12:49:45 PM »

Defiantly keep the revs up. Mine starts to smooth out at 3K and 3.5-4K seem to be the sweet spot for steady cruising speed.

News:

Author Topic: Vibration (Read 47911 times)

MotoGoosy

oldbike54

father guzzi obrian

Wildguzzi.com

MotoGoosy

oldbike54

MotoGoosy

oldbike54

MotoGoosy

MotoGoosy

oldbike54

oldbike54

MotoGoosy

oldbike54

crc

redrider

MotoGoosy

MotoGoosy

MotoGoosy

oldbike54

190 Octane