• There has been a recent cluster of spammers accessing BARFer accounts and posting spam. To safeguard your account, please consider changing your password. It would be even better to take the additional step of enabling 2 Factor Authentication (2FA) on your BARF account. Read more here.

Power issue // monster 620

Dark_620

Dark_620

New member
Joined
Jun 18, 2016
Location
San Francisco
Moto(s)
08 FZ1
08 ZX6R
03 Monster 620ie
Yo guys !

First thread, and not a very cool one.
My Ducati Monster 620 (2002 version, 32K miles) doesn't go faster than 70mph!! :(

I just got the bike and I'm a new rider so I was riding slow and not long trips on the beginning, so as I'm in town I rode mainly in town the first week.

But then taking the Skyline Bv, I noticed that the bike doesn't go faster than 70mph. And at full throttle in 2nd gear, when I want to pass someone going at 40-50mph... It takes me a fucking eternity... :deadhorse

The bike has no hesitation and runs fines at every rev. It's just about the REAL speed. So that sounds weird, kind of like a power limitation.

Spark plugs are new (and the ones recommended by Ducati), coils and cables are good.

Want your thoughts on that and recommandations for finding the good mecanics people here and not the big commercial dealerships, I don't believe in them.

Thanks in advance guys !
 
Had the exact same bike and it had NO problem breaking the ton. No offense, but how big a boy are ya? Other than weighing 400 pounds, if it runs perfect and revs perfect I'd say your clutch is slipping.
 
How's the air filter?
New fuel filter wouldn't hurt.
When was the last valve adjustment?
 
Last edited:
Is it running on both cylinders? Easy way to check is to see if both exhaust pipes heat up at the same rate. Check them as close to the engine heads as you can.

You may be riding around on a Ducati 310 monster.
 
motomania2007 said:
Is it running on both cylinders? Easy way to check is to see if both exhaust pipes heat up at the same rate. Check them as close to the engine heads as you can.

You may be riding around on a Ducati 310 monster.
Click to expand...

+1
I once did a service on a guy's 748. Informed him he had a broken belt and bent valves on the horizontal cylinder. He rode it that way for I think 6 months! After repaired he came back all scared because of the extra power.:thumbup
 
RE

Hey guys,

Thanks a lot for the quick answers.

- @Stix Haha ! I'm only about 160 pounds ! Thanks though, that was the first thing to check ! Seriously, I think the clutch hypothesis makes sense.

- @423yjl and @mototireguy : 3 months and less than 1K miles ago, Desmoto did a lot of work on the bike including

- new air filter
- fuel tank cleaning
- new fuel filter
- new belts
- new spark plugs
- new chain+sprokets
- oil + filter change


- @motomania2007 So here's what I did : coming back from a short ride, I put a beautiful peace of beef on each exhaust pipes. And both at the same time ended up a very good medium-well ! :bbq
So I think we're good on that one !
More seriously, they felt the same heat touching it quickly as close possible to the engine. Thanks for the tip ;)

I also checked the coils, looks good, but I'd like to find a Ohm meter to precisely check the coil are working fine.

-> BUT, the CLUTCH really makes sense guys. Because I also feel some little "hic-hic-hic" when I'm in 1st gear and just "clutch speed"
(don't know the english word for it, the speed when you fully release the clutch but don't move the throttle)

I'll check it out this weekend , will keep you informed guys ! Thanks again :thumbup

(...damn! it's so boring to get smoked by a Bonneville!)
 
I'll check it out with you.

Like I told you, I am 70% sure it's a clutch slipping issue :).
 
Dark_620 said:
- @motomania2007 So here's what I did : coming back from a short ride, I put a beautiful peace of beef on each exhaust pipes. And both at the same time ended up a very good medium-well ! :bbq
So I think we're good on that one !
More seriously, they felt the same heat touching it quickly as close possible to the engine. Thanks for the tip ;)
Click to expand...
Take a look at the exhaust pipes where they meet behind the engine and in front of the rear tire. Both pipes go into a collector, then back out to the exhaust pipes. Once you're past the collector, the temperature of the left and right cans has nothing at all to do with the temperature coming out of the cylinders. Just trying to clear that one thing up for you. :nerd
 
Dark_620 said:
-> BUT, the CLUTCH really makes sense guys. Because I also feel some little "hic-hic-hic" when I'm in 1st gear and just "clutch speed"
(don't know the english word for it, the speed when you fully release the clutch but don't move the throttle)
Click to expand...

The way I've easily noticed a clutch that is starting to slip, is to put it up in a higher gear while going slow, then start hard acceleration. You will hear the engine rapidly increasing in revs while you aren't really moving that much quicker.

Try going about 40 and put it in 5th, and then wack the throttle. See if the acceleration and what you hear or see on the tack seem to move together, or if the tack increases quickly while the bike does not.
 
Hey !

@amazighlol thank you man, that will help ;)

@ScottRNelson , yes I noticed the collector, as I said I checked the temperature as close possible to the engine, touching the total beginning of the pipes (as motomania 2007 advised me)

@roblinders, good advise, I'll check this one ! :thumbup

Thank you again guys !
I'll have more time to check it all this weekend, I will let you know
 
Very used clutch plates

Hi guys,

So I guess this means the clutch is really dead...

Question now is, what to use ?
- Barnett clutch plates = $150
- Ducati clutch plates = $300

Some guys don't recommend Barnett at all, because the new Barnett clutch plates lasted only 1 or 2K miles... but it was okay for some others. And the original Ducati ones are very more expensive.

What about your experience guys ? Particularly Monster riders
 

Attachments

  • IMG_20160627_224634 copie.jpg
    IMG_20160627_224634 copie.jpg
    214.5 KB · Views: 16
  • IMG_20160627_224651 copie.jpg
    IMG_20160627_224651 copie.jpg
    193.6 KB · Views: 12
  • IMG_20160627_224822 copie.jpg
    IMG_20160627_224822 copie.jpg
    217.7 KB · Views: 15
  • IMG_20160627_224832 copie.jpg
    IMG_20160627_224832 copie.jpg
    182.7 KB · Views: 16
  • IMG_20160627_234507 copie.jpg
    IMG_20160627_234507 copie.jpg
    162.2 KB · Views: 20
  • IMG_20160627_234515 copie.jpg
    IMG_20160627_234515 copie.jpg
    131.2 KB · Views: 15
  • IMG_20160627_234653 copie.jpg
    IMG_20160627_234653 copie.jpg
    140.4 KB · Views: 17
I have an open clutch on mine so it's different, and i tried the Barnett. After about 700 miles it started to make a loud squeal when starting from a stop. drove me nuts, so put in OEM. also have heard some people do fine with the Barnett but I didn't
 
Quick question, do you always work on your bike/clutch in that room? My wife would kill me!
 
Glad you found the culprit. I have a 2006 Multistrada 620 which is the same engine. My stock clutch is approaching 20k miles. I wouldn't hesitate on another Ducati branded clutch knowing it'll last the same mileage or more. Btw I don't do wheelies or burnouts. Don't know how anyway. :ride
 
Okay, thanks @423yjl and @secn8ure I'll get OEM clutch plates then...

HAHAHA David ! I work in the garage, I just came here in the apartment for the lights, otherwise, no parts left in the bathroom ! ^^
(and there is usually no space left for other product than cosmetic & makeup products so I couldn't bring a bike engine there anyway !)

Well, I finally hope it's the only reason why the bike is not faster than my grand'ma with her bicycle. I'll give a feedback once it's replaced.
Thank you guys
 
Last edited:
You must log in or register to reply here.
Back
Top