zx12richard
Pro
The Green Monster..
Posts: 1133
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posted February 06, 2002 06:05 PM
12 rider needs help.... Not money opinions...Answers
I just started my bike to warm it up. Let it run for a few minutes and came inside to wait til warm. When I went back out my header around the cyclinder was glowing red... This is not normal. I looked at temp and it was in the 10 oclock position..... Any Ideas why???? Muzzy pipe on it... I need answers on this one normally for a car or something I would think converter clogged but there is none..... Thanxxxx Guys..........
  
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wilson1
Expert Class
Posts: 345
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posted February 06, 2002 06:29 PM
how long was it idling ¿¿ and do you have any other mods ¿¿
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kingzx12r
Expert Class
woo hoo
Posts: 223
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posted February 06, 2002 07:54 PM
Did you have the fast idle on? If it is dark you will see it not usually in the daytime but it is usually because of fast Idle.
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MadMike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted February 06, 2002 08:28 PM
Is it a Ti header??? that would do it on fast idle for 10 min..
mad mike
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zx12richard
Pro
The Green Monster..
Posts: 1133
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posted February 06, 2002 09:57 PM
Its stainless but it fast idled about 8 minutes.... I think it was just the first time I noticed everyone thinks its normal.... Thanxxxx Guys... I really appreciate it...
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ZX12eR
Parking Attendant
Posts: 9
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posted February 07, 2002 12:45 AM
idle overheat
Hey Richard,
I just noticed that Easy's board is down. The owner's manual warns against idling for more than five minutes on warmup. Page 54. Says don't do this or overheating and serious engine damage may occur. So don't. Unless you really want to.
ZX12eR
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Otis
Needs a job
Captain Kickstand
Posts: 3028
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posted February 07, 2002 04:03 AM
Fast sidled for 8 minutes! Too long, way to long. Use the fast idle only briefly to get her going then drop it down to regular idle.
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TurboBlew
Moderator
BUSY DOING THE SCHIAVO
Posts: 4590
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posted February 07, 2002 04:48 AM
Dude, you have a 4 cylinder motor that doesnt need 10 min to warm up. 3 mins tops. I would check your spark plugs to make sure they havent *loaded up*.
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Koz
Expert Class
Posts: 304
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posted February 07, 2002 06:43 AM
The glowing is normal if you let it idle. You set the fast idle just to start, then set to normal idle ASAP (30 seconds). You can even take off (ride) with the fast idle on, then after your rolling take the fast idle off. You may want to check your plastic fan for melting, leaving the engine idling is the most common reason for it to melt. If the blade is close to the glowing pipe until the fan kicks on WALA, melted fan blade.
Koz
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ZXtra
Expert Class
Posts: 490
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posted February 07, 2002 10:55 AM
Too long warmup...
zx12richard...8 minutes on fast idle...WHY? Not only is it not necessary but as already mentioned by Koz and TurboBlew you could be doing damage.
The cooling system on these bikes is designed to work best when you're moving. They all start to run hot when you're stopped (as you've found out).
The oil in the ZX12 is warmed by the coolant. Engine coolant flows around the base of the oil filter. As the coolant temperature gauge registers more heat, the oil is warming also. It doesn't take long for this motor to come to temperature. Maybe 2 minutes and you're up to the normal operating temperature. Anything after that is a waste of fuel and running time.
I personally fire it up, sit there for about 30 seconds, then drive away slowly till the temp gauge is in it's operating range.  -ZXtra
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Jesse28B
Parking Attendant
Posts: 1
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posted February 08, 2002 07:28 PM
Dumb question
Excuse me for asking a dumb question, but how do you set the time for fast or slow idle? I'm going to be using this engine in my race car and it is going to have the stock box on it. Thanks!
  
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ROCKET J
Zone Head
Goes to water over a dummy!!!
Posts: 602
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posted February 08, 2002 08:01 PM
quote:
The oil in the ZX12 is warmed by the coolant.
Isn't that the other way around?
Rocket
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EastBayDave
Needs a job
Posts: 2245
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posted February 09, 2002 07:30 AM
My Akra glows orange too at the headpipes (about 3-4") if you let it fast idle for too long. I was checking it on the stand in gear to check the replaced Dymag cushdrive for runout.
Luckily I installed the Muzzy fan same time as the pipe... Seems to have done no damage. When cold starting up, I can typically lower the fast idle & leave within a minute or so...
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02' ZRX1200
00' ZX12R sold
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zx12richard
Pro
The Green Monster..
Posts: 1133
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posted February 09, 2002 07:46 AM
How hard is it to install the Muzzy fan???? Have to take off both sides or just one??? Thanxxxx Guys... Got lucky mines ok so far....... But for the future may install Muzzy fan...
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ZXtra
Expert Class
Posts: 490
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posted February 09, 2002 09:58 AM
ROCKET J...When you start the engine cold, the coolant heats up faster than the oil. So it then helps to bring the oil to operating temperature.
After running for a while, the oil continues to get even hotter than the coolant. Then the coolant cools the oil.
We were talking about the first scenario during warmup. -ZXtra
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