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98 M600 WOT issue

Started by garryc, June 19, 2012, 03:51:05 AM

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garryc

June 19, 2012, 03:51:05 AM
G'Day All,
Any suggestions on where to start looking for issue.
I installed DP tacho and speedo I got from BlackKat a couple of days ago.
Took the bike for a test today.
All good up to about 6k rpm.
Very noticable hesitation when I crack the throttle open at these revs..
If I gently roll the throttle on no issue.
I run DP pies snorkels removed from airbox with K& N filter., yet to install the stage 2 jet kit.
New exactfit coils
No fuel petcock.
thanks
garryc
garryc

ducpainter

#1
June 19, 2012, 03:53:36 AM
Stock exhaust?

The bike was lean from the factory, and removing the snorkels made it leaner.

Install the kit before you get too worried.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


garryc

#2
June 19, 2012, 04:02:38 AM Last Edit: June 19, 2012, 04:05:28 AM by garryc
Not stock exhaust, ducati performance remus pipes not pies
Edit: this issues was not evident before fitting the tacho, so am questioning whether it is a connection to coil issue.
I haven't ridden the bike for about 4 weeks so the possibility of some carb issue not immediately discounted

ducpainter

#3
June 19, 2012, 04:05:43 AM
The issue is most definitely jetting.

With just the snorkels removed I think I'd start with the smallest jets in the kit.

Is it Dyno-Jet or Factory Pro?

I personally like the Dyno-Jet, but as always you realize what they say about opinions.  ;)
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


garryc

#4
June 19, 2012, 04:11:30 AM
Dynojet kit but have factory pro needle jet holders

ducpainter

#5
June 19, 2012, 04:19:30 AM
The needle jets will be fine.

I like the Dyno-Jet needle taper and the springs over the Factory.

Let us know how you make out.
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


motoxmann

#6
June 19, 2012, 05:41:40 AM
if the tach assembly is loose, it can and often will affect the ignition signal for whichever cylinder it's connected to. I actually had a similar problem, which to me was fairly obvious from the start because the tach sometimes would stick or jump around a little. after a quick inspection, I simply tightened the 3 nuts on the back of the tach, problem solved. those 3 nuts hold the assembly together, including the electrical connections between the guage itsself and the circuitboard inside

ducpainter

#7
June 19, 2012, 01:24:07 PM
Quote from: motoxmann on June 19, 2012, 05:41:40 AM
if the tach assembly is loose, it can and often will affect the ignition signal for whichever cylinder it's connected to. I actually had a similar problem, which to me was fairly obvious from the start because the tach sometimes would stick or jump around a little. after a quick inspection, I simply tightened the 3 nuts on the back of the tach, problem solved. those 3 nuts hold the assembly together, including the electrical connections between the guage itsself and the circuitboard inside
It's possible, but the fact the bike revs past 6K on a gentle roll on says jetting to me.

I've been wrong before.  ;D
"Once you accept that a child on the autistic spectrum experiences the world in
 a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent."


Howie

#8
June 19, 2012, 04:13:13 PM
Was the tach installed after the snorkels were removed?  Same with the coils.  Yep, I agree with Nate.  If you don't open the airbox the stage II might be a little rich.
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