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cold plugs
- themachine
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problem is that the local idiots cant find them any colder than 10 and they are glowing red hot under mild acceleration when warm.
doe anyone know of a plug colder than 10?
82 kawaski csr1000 Evolved into a streetfighter.
I love Speed! Hot Nasty Badass Speed!!!
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- BSKZ650
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77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob
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- brianrae33
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1982 kz1000ltd
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- mark1122
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- Keep twisting it
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i see u have new carbs.
are u jetted right,is timing right?
Something sounds off.
have u tried to richen the mix? this will help to cool the cyl.also retarding the timing.
Post edited by: mark1122, at: 2007/09/06 09:01
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
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- BSKZ650
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77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob
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- Patton
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if your plugs are glowing red hot i would first ask, WHY?Please be carfull running it like that.how do u know they are red hot?
i see u have new carbs.
are u jetted right,is timing right?
Something sounds off.
have u tried to richen the mix? this will help to cool the cyl.also retarding the timing.<br><br>Post edited by: mark1122, at: 2007/09/06 09:01
Concur with above by mark1122.
Per FSM, plug heat range should not go more than one step in either direction.
Motors usually don't overheat for no reason.
Any ideas why this is happening?
Some possible reasons for overheating are:
Engine performance modifications
Defective oil pump or screen clogged
Oil level too low or too high
Spark plugs bad or maladjusted or wrong heat range
Ignition timing maladjusted
Float bowl fuel level too low
Main jet clogged
Carb holders loose or cracked, loose carb clamp
Air cleaner poorly sealed or missing, or duct leaking
Clutch slipping
Brakes dragging
Compression excessive from carbon build-up
Good Luck toward resolving the overheating problem.
1973 Z1
KZ900 LTD
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- themachine
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good oil pressure
full on oil
i'v been playing with the ignition seeing if it will run cooler
i am having issues with the jets, exhaust popping on decel
fresh carb holders and pods.
and 178psi on a 1400 mile 1170cc rated at 10.25:1
i had speed glazing on the stock plugs, its a yellowish tint with no resedue on the tips.
under acceleration when hot it misses, gets worse with lower octane and the hotter plugs.
82 kawaski csr1000 Evolved into a streetfighter.
I love Speed! Hot Nasty Badass Speed!!!
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- BSKZ650
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77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob
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- mark1122
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- Keep twisting it
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76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
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~ (k) / (z)
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- themachine
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82 kawaski csr1000 Evolved into a streetfighter.
I love Speed! Hot Nasty Badass Speed!!!
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- Patton
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... they are glowing red hot under mild acceleration when warm....
Question please to confirm ---
Are the metal casings of all four plugs glowing red hot where they screw into the head?
Reason for asking -- While some problems affect all cylinders (such as ignition timing or compression), other issues such as intake air leak, clogged jetting, or low float bowl fuel level, sometimes plague only one cylinder.
Could be excessive compression.
What are psi readings on compression test?
Should use strobe type timing light to assure ignition being spot-on, and also that the advancer unit is working.
If these carbs have rubber vacuum nipple caps, maybe they are leaking and allowing air intrusion.
Would also assure correct float bowl service fuel level. Hopefully, the quick easy clear plastic tube method may be used to check the levels.
Wishing you success!
1973 Z1
KZ900 LTD
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- mark1122
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what was the q and a ?wiredgeorge awnsered my carburation question in another thread, thanks.
76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.
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