Ducati Monster Forum

Moto Board => Tech => Topic started by: TreyRiser on April 21, 2009, 06:03:40 PM

Title: More Noob questions about my bike...
Post by: TreyRiser on April 21, 2009, 06:03:40 PM
Sometimes when i shift into first, as i release the clutch and i start to feel it engage i hear a groan or a croak come from the clutch area, i also feel the bike shutter, it feels like the clutch is engaging  but it sounds really ruff...it doesn't happen in higher gears...am i just shifting wrong or is this a sound you hear when your clutch is dieing, i am still able to takeoff smoothly though, so i think i am giving it enough gas....

After i drive the bike a little more spirited "really getting on it"  and then come to a stop at a stop sign the idle stays up around 2200 for a little bit like the throttle is stuck open and then it falls back down to its normal 1000ish level...Is this suppose to happen? It soesn't seem to happen when i drive the bike pretty tame....




Title: Re: More Noob questions about my bike...
Post by: ducpainter on April 21, 2009, 06:23:52 PM
Quote from: TreyRiser on April 21, 2009, 06:03:40 PM
Sometimes when i shift into first, as i release the clutch and i start to feel it engage i hear a groan or a croak come from the clutch area, i also feel the bike shutter, it feels like the clutch is engaging  but it sounds really ruff...it doesn't happen in higher gears...am i just shifting wrong or is this a sound you hear when your clutch is dieing, i am still able to takeoff smoothly though, so i think i am giving it enough gas....

After i drive the bike a little more spirited "really getting on it"  and then come to a stop at a stop sign the idle stays up around 2200 for a little bit like the throttle is stuck open and then it falls back down to its normal 1000ish level...Is this suppose to happen? It soesn't seem to happen when i drive the bike pretty tame....





The groan is a sign of wear, but it can be fixed by taking the discs out and using a scotchbtite wheel on the steel plates.

The second issue is usually related to carb synch. They'll do that if they're out. It will also do it if the normal idle is a bit high...usually over 1200 rpm
Title: Re: More Noob questions about my bike...
Post by: Slide Panda on April 21, 2009, 06:25:10 PM
This is happening from a stop?  If so what are the engine RPMs?  If you're new to this bike/riding the most likely culprit is you.  The easy explanation is that you're just not giving it enough gas off the line and the engine is lugging some - which will make the bike shutter.

As to the groaning - have you had a look at your clutch pack?  Any notion as to how many miles are on it?

Now for your throttle - No it is not supposed to do that.  Your assessment of a 'bit like the throttle is stuck' is probably exactly what's happening.  Have the carbs ever been cleaned?  It sounds like something is stuck either in your carb or possibly (less likely) your throttle cable, and the throttle won't immediately zero out.  But with the little time and vibration the stuck item works back into it's proper place.
Title: Re: More Noob questions about my bike...
Post by: TreyRiser on April 21, 2009, 06:36:07 PM
I have not looked at my clutch pack nor do i know how many miles are on it and frankly, i wouldn't know what to look for, i am new to this bike, i have only had it a couple of weeks so i am still getting use to it, i just want to make sure everything is running exactly as it should...these are the things that seemed odd to me...

What does it take to look at my clutch pack? The guy i bought it from said he had it serviced at the dealer 1700miles ago so the carbs should have been cleaned right? Can i clean them myself? How difficult is it and what do i do?
Title: Re: More Noob questions about my bike...
Post by: TreyRiser on April 21, 2009, 06:38:53 PM
Also, the sound happens at around 2000-2500RPMS in first from a stop, it happens while i am rollling on the throttle and easing off the clutch...it sounds like i can here he engagement of the clutch..it doesn't feel smooth...
Title: Re: More Noob questions about my bike...
Post by: Slide Panda on April 21, 2009, 06:49:39 PM
Quote from: TreyRiser on April 21, 2009, 06:36:07 PM
I have not looked at my clutch pack nor do i know how many miles are on it and frankly, i wouldn't know what to look for, i am new to this bike, i have only had it a couple of weeks so i am still getting use to it, i just want to make sure everything is running exactly as it should...these are the things that seemed odd to me...

What does it take to look at my clutch pack? The guy i bought it from said he had it serviced at the dealer 1700miles ago so the carbs should have been cleaned right? Can i clean them myself? How difficult is it and what do i do?

Well one easy thing to look at is the condition of the tabs on the drive plates.  If you remove the clutch cover, you can see them.  There will be a circular metal basket with a number of slots in it.  In those slots, you'll see metal tabs.  On new plates, they are (roughly) rectangular, as the pack gets beaten up, one edge will get to look like the side of a 'T'.  This is a quick and easy way to ball park wear. 

A more involved, but telling way is to remove the pressure plate and take out the clutch pack.  Then you'll be able to inspect the friction material on the drive plates and the surfaces of the steel driven plates that DP mentioned.  Things to look for are very worn items, un even wear etc.  If there's rust, take a scotchbrite to 'em as dp said.

If you need a little more insight - hop over to the tutorials section.  Not sure if anyone has detailed inspecting a clutch.  But I know thye show how to remove the pressure plate, if you are unsure.  It's not difficult and call that's needed is a 4 and 5 mm allen key and a couple picks (bamboo kehbab skewers will work in a pinch)

2000 rpms?  Not enough, that will explain the shuttering feeling..  Give it some more gas from a dead stop like 3000-3500
Title: Re: More Noob questions about my bike...
Post by: Howie on April 22, 2009, 04:43:46 AM
Sync and, if needed, lower the idle a little as ducpainter said.  Every time the idle reaches a high enough speed the ignition modules take over and the engine speed bumps up. 

Welcome to the world of dry clutches.  Follow ducpainter's advice on the clutch too.  A little shuffling of the friction plates can help.