Birdoprey
Well-Known Member
Drop your plug gap to .022". That is the gap reccomended for the Denso's and the Mitsubishi's
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Thevmaxrider
Well-Known Member
Thx for the "heads up"! Am putting new plugs in my Max once the engine is painted so that is a good piece of advice!
satariel666
Well-Known Member
I always tought that spark plug gap is defined for specific engine :ummm::confused2:
Do you noticed any changes with that mod?
Do you noticed any changes with that mod?
Birdoprey
Well-Known Member
Not nessisarily. Compression has some to do with it. Mainly the coil itself. Larger gaps have more resistance. Stk compression V-max's would be fine, but if one ups the compression it can cause problems. Most of these bikes that use the COP's have 11.5-12.5:1 compression stk. Again, it would prolly be no problem on stk comp, but won't hurt closing the gap.
Will it cause problems? On higher comp, prolly. On stk comp, dunno. The coil is working harder already since we are running them w/ wasted spark. Add extra resistance with a larger gap...???
Personally, i would run .022-.025".
I was always under the tuning impression you wanted to run as wide a gap as possible for the enging combination with out misfire.
Jim N
Jim N
Birdoprey
Well-Known Member
Thats fine to do. Though a smaller gap has hotter spark. Larger gaps have a larger spark. Personally, i like the hotter spark with less chance of missfire.
You would be suprised how many times an engine will missfire w/o the rider knowing. Not a dead miss, but one or two in several hundred. Many, many vehicles do this all the time.
Ya'll can do whatcha want though. Just posting what i would do.
satariel666
Well-Known Member
Today i've tried 0,7mm gap - 0,27".
1300cc engine with stock commpresion.
I didnt noticed any changes.
Maybe ill try to make some changes with engine at winter
1300cc engine with stock commpresion.
I didnt noticed any changes.
Maybe ill try to make some changes with engine at winter
vmax626
Well-Known Member
Thanks mark,
I just bought new plugs and I`ll try that.
<<Dave>>unk:
I just bought new plugs and I`ll try that.
<<Dave>>
unk:
alorio1
Well-Known Member
Installed new plugs yesterday and could not remember recommended plug gap setting for bikes with COP's, so I thought I would give this thread a bump. Some of you might already know this, some may not....
tugla
Well-Known Member
i left mine stock gap ngk's. bike runs great.........
satariel666
Well-Known Member
Smaller gap is not good for those engines in thier stock form.
