1 K100 2V not running Help Thu Aug 24, 2017 6:00 am
andyldean
Silver member
Help Please,
I currently own 2 K100's a 2v and a 4v.
Recently decided to strip the head off the 2v to change the stem seals and give the engine a good clean strip and paint while I was at it.
To cut a long story short I managed to get a replacement engine with only 65k on it for $100 so decided that would be the easier job.
I rebuilt the bike up and tried to fire it up. The bike did run but very rough and with a distinct misfire.
As the wiring loom had been seriously hacked over the years I decided this could be a source of issues so changed that for a replacement in good condition.
Still no change misfire and rough running.
Timed the Hall sensor unit with a drop clock and led box all good
removed fuel rail and checked injectors( all spray well)
so started to change and check all the following:
Fuel side : Injectors (changed) , pressure regulator (changed) fuel tank and fuel pump (changed).
Ignition side: plugs (changed), HT leads (changed),coils (checked resistance etc), Hall sensor (checked)
Electrical side: battery (checked), Alternator (changed) earth connections ( checked)
still the bike will not run well and on occasion will not run at all. fuel is def getting into the cylinders as
after a while it will run out of the headers. def getting a spark as it will run on occasion but miss fire.
Really at a sticky point now just don't seem to be getting anywhere with this.
Determination is the name of the game but any pointers would be very helpful and much appreciated.
Thanks in advance
I currently own 2 K100's a 2v and a 4v.
Recently decided to strip the head off the 2v to change the stem seals and give the engine a good clean strip and paint while I was at it.
To cut a long story short I managed to get a replacement engine with only 65k on it for $100 so decided that would be the easier job.
I rebuilt the bike up and tried to fire it up. The bike did run but very rough and with a distinct misfire.
As the wiring loom had been seriously hacked over the years I decided this could be a source of issues so changed that for a replacement in good condition.
Still no change misfire and rough running.
Timed the Hall sensor unit with a drop clock and led box all good
removed fuel rail and checked injectors( all spray well)
so started to change and check all the following:
Fuel side : Injectors (changed) , pressure regulator (changed) fuel tank and fuel pump (changed).
Ignition side: plugs (changed), HT leads (changed),coils (checked resistance etc), Hall sensor (checked)
Electrical side: battery (checked), Alternator (changed) earth connections ( checked)
still the bike will not run well and on occasion will not run at all. fuel is def getting into the cylinders as
after a while it will run out of the headers. def getting a spark as it will run on occasion but miss fire.
Really at a sticky point now just don't seem to be getting anywhere with this.
Determination is the name of the game but any pointers would be very helpful and much appreciated.
Thanks in advance
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1987 K100RT (cafe racer)
1991 K100RS (soon to be my sons cafe racer)