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no power!?

Started by samuraibiker, June 02, 2015, 06:07:49 AM

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samuraibiker

June 02, 2015, 06:07:49 AM
hey guys

havent ridden my 97 monster 400 for a while... key in the ignition yesterday, started fine, idled nicely, revved fine...went for a ride.... wtf???? had someone stolen the motor and put in a honda cub one???? absolutely no power, no acceleration... limped home...both cylinders hot and firing, plugs good, battery fine.... any ideas? could it be a fuel starvation issue? fuel filter? fuel pump? any help much appreciated!
monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

ducpainter

#1
June 02, 2015, 06:10:07 AM
Could be lots of things.

What did you last do to the bike?

"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."


samuraibiker

#2
June 02, 2015, 06:27:11 AM
hey duc

last thing i did was change the ignition pick up coils , new plugs ( ngk ), new battery, oil change.....


monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

ducpainter

#3
June 02, 2015, 06:28:12 AM
You rode it after the pick-ups and it was OK?
"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."


samuraibiker

#4
June 02, 2015, 06:42:44 AM
was fine and dandy...then didnt ride for about a month ( or more )
monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

samuraibiker

#5
June 02, 2015, 06:46:59 AM
have been searching around like mad for a day now...  fuel related issue? the filter was changed less than 2000 kms ago .... the fuel pump and all other fuel hoses etc are the originals from 1997...
monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

ducpainter

#6
June 02, 2015, 06:48:41 AM
I'd check to see if the tank vent line got kinked the last time you lifted the tank.
"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."


samuraibiker

#7
June 02, 2015, 07:16:16 AM
hey duc

thanks... i think i will check all those lines/ hoses etc... worth pulling off the fuel pump and cleaning it out?
monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

ducpainter

#8
June 02, 2015, 08:01:54 AM
Quote from: samuraibiker on June 02, 2015, 07:16:16 AM
hey duc

thanks... i think i will check all those lines/ hoses etc... worth pulling off the fuel pump and cleaning it out?
If the filter is working there shouldn't be anything in there.

I'd do one thing at a time.
"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."


samuraibiker

#9
June 03, 2015, 04:42:52 AM
ok.... check all hoses...no clogs, splits etc...

changed fuel filter

same problem... i noticed that from idling, when revs are increased slightly, the engine doesnt run smooth... timing issue?

when i changed the ignition pick up coils i didnt / couldnt set the gap between the coils and the alternator as they are fixed hole type... but could it be the ignition coils causing bad timing??
monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

Howie

#10
June 03, 2015, 04:48:37 AM
Could be timing or pick up gap.  Timing can be checked with an old fashioned timing light without taking anything apart.  Coils will not affect timing unless you have them mixed up.  since the bike idles well that should be correct.  Timing and gap are adjusted by loosening the pick ups and moving them on the bracket.

ducpainter

#11
June 03, 2015, 04:53:28 AM
There is a spec on the pick-up air gap. It should be .6mm. There was just a thread about bad gap/timing.

http://www.ducatimonsterforum.org/index.php?topic=70988.msg1311402#msg1311402

Where did you get the replacement pickups?
"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."


samuraibiker

#12
June 03, 2015, 06:04:43 AM
hey howie/ ducp

firstly..big thanks for your comments... taking the time to help me out is really appreciated

the gap between the flywheel and the coils wasnt adjustable because my coils are the holes only ones.. no movement possible... and the position of the coils on the bracket also wasnt adjustable due to the simple single holes

bought them on ebay
http://www.ebay.com/itm/1-pickup-zundgeber-ducati-600-750-S-900-ss-monster-2v-ignition-coils-pick-up-new-/160690718980

i didnt move the bracket at all, just replaced the coils thmselves


this is definitely a timing/ pick up coil issue........


monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr

ducpainter

#13
June 03, 2015, 06:55:03 AM
The gap can still be adjusted slightly by using the clearance between the bolts and the holes both on the pick-ups and the timing plate.

That doesn't seem to be your problem though as you said the bike was fine after you changed them. The gap shouldn't suddenly be an issue unless your plugs are fouling due to a weak or mis-timed spark.

Check the plugs?
"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."


samuraibiker

#14
June 03, 2015, 07:02:03 AM
hey ducp

the plugs were black as hell actually...had to give them a good clean.... and they are new plugs!

so...mis-timing spark?
monster 400 evolving into a 900; vespa px150, vespa gs 150, suzuki grasstracker 250 60s custom tracker, honda cbr1000rr
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