The bike: I have a 2000 M900ie.
The bikes starts easily, idles nicely and runs great. 18K service completed about 1500 miles ago (belts, valves, fuel filter, etc.)
The problem: Turn on the key, hear the fuel pump prime, pull the fast idle lever back and press the starter button. The bike starts right away and revs up. During the warm up, the bike will split back through the intake; you can see the rpms drop on the tach when this happens. If the fast idle lever isn't pulled back all the way, the bike will quit. This used to happen only once during the warm up, around 10 to 20 seconds after starting. Now it happens 4 to 6 times during the warm up.
Any ideas?
A good place to start is oil and air temperature sensors, unfortunately I don't know the specs.
Also check for vacuum leaks.
Who did your valves? Did they give you a report of the tolerances measured and the shims replaced?
I've had this issue in the past. Then suddenly, I started doing my own valve adjustments and it magically fixed itself.
Turned out I had loose shims. Once I got them spot on the problem went away
Quote from: EEL on August 06, 2010, 01:07:25 PM
Who did your valves? Did they give you a report of the tolerances measured and the shims replaced?
I've had this issue in the past. Then suddenly, I started doing my own valve adjustments and it magically fixed itself.
Turned out I had loose shims. Once I got them spot on the problem went away
If this happened just after the service, what EEL suggests is a good possibility.
Quote from: EEL on August 06, 2010, 01:07:25 PM
Who did your valves? Did they give you a report of the tolerances measured and the shims replaced?
I've had this issue in the past. Then suddenly, I started doing my own valve adjustments and it magically fixed itself.
Turned out I had loose shims. Once I got them spot on the problem went away
+1
I had mine on the Dyno today , it wasn't good
Had only 78 hp (should be about 87 hp)
The mechanic thought something could be wrong with the compression
And he was wright , only 3,6 bar on one cylinder
He's going to fix it this week
Mine had the same things yours has
I haven't had a chance to look at the Monster as of yet. I am hoping to get to in the next week.
Thinking about it, I am also having some issues that I haven't resolved with my tachometer reading incorrectly in the upper rpm range. The tach does appear to be reading correctly at idle. The rev limiter kicks in at 7500 rpm indicated which it should be 8600rpm. The ECU has been upgraded with a FIM chip, which I don't know if it increases the limiter or not. How does one know if or how to find the FIM chip? Is it where the ECU is or connects to it? This is my first fuel injected bike.
Thread regarding the tachometer:
Tachometer not reading right? (http://ducatimonsterforum.org/index.php?topic=40050.msg714649#msg714649)Just kinda thinking out loud...
Quote from: supertjeduc on August 07, 2010, 09:11:00 AM
+1
I had mine on the Dyno today , it wasn't good
Had only 78 hp (should be about 87 hp)
The mechanic thought something could be wrong with the compression
And he was wright , only 3,6 bar on one cylinder
He's going to fix it this week
Mine had the same things yours has
Did you come to some sort of resolution on this?
Mine is fixed
Valve was kaput
(http://supertjeduc.zenfolio.com/img/s8/v10/p880585996-4.jpg)
And now it is better than before
(http://supertjeduc.zenfolio.com/img/s8/v11/p1000891254-5.jpg)
But the spitting was still there , but i found it i think
I sprayed some contact spray on the famous white plug on the left side just under the tank
And have fasten it with a tyrip
No more spitting
Quote from: supertjeduc on August 14, 2010, 08:38:47 AM
Mine is fixed
Valve was kaput
Wow, thanks for sharing the photos. I have seen this before on 900ie Monsters (TOB). The last valve check and adjustment, I looked at the valves through the spark plug hole when I had the closers off. My intake and exhaust valves were in good shape. I am glad you found the problem and got it fixed.
QuoteBut the spitting was still there , but i found it i think
I sprayed some contact spray on the famous white plug on the left side just under the tank
And have fasten it with a tyrip
No more spitting
Thanks for this information. The problem went away shortly after this post. July and August has been hot and dry here. This past weekend I gave the bike a bath and the problem came back. Looks like something is amiss electrically. I picked up some contact cleaner and dielectric grease. My plan is to go over the entire harness this weekend. :)
Another update on the spitting:
I ordered a set of adapters for my compression tester in order to check the compression on the Monster. FSM states that the pressure should be 9-11 Bar with a warm engine. I had 9 Bar on both cylinders COLD, so I feel good about that.
I took 45 minutes and when through the entire wiring harness with contact cleaner and dielectric grease, starting at the ECU and working my way through to the taillight and headlight. FUN!
The only corrosion that I found was on a white connector, near the headstock and just above the horn (there are a couple there). Really, everything else looked good.
I started the bike twice since this morning with no popping or spitting noises. So far, so good! I will be taking the bike out twice more today, so I will update this thread again with what I find.
And for the tach...
I am also curious to see if the cleaning will effect the tachometer readings. At the start of the riding season, the limiter kicked in at an indicated 8250rpm, then after the bike was in a serious rain storm the limiter kicked in at an indicated 7500rpm and the last ride before cleaning the harness the limiter kicked in at an indicated 8250rpm again. I haven't dissembled the gauges and cleaned them as of yet. I plan on hitting the limiter this afternoon!
I took another spin on the Monster.
No spitting on start up again! [thumbsup]
The bike also feels a bit livelier and smoother as well. I am really pleased with the results. [moto]
Unfortunately, my tach is not reading correctly as the limiter kicked in at an indicated 8000rpms on the ride so back to my other post (Tachometer not reading right? (http://ducatimonsterforum.org/index.php?topic=40050.msg714649#msg714649)).