CHERRY RED EXHAUST?????

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25 Feb 2013 21:30 #574136 by Steve1986
CHERRY RED EXHAUST????? was created by Steve1986
So my first ride of the year and on this bike was a big fail. I finally got a nice day to get my bike out I started it no problem went to get my things together to leave (about 10 minuets) on when i returned to the bike it was puking fuel and the right side exhaust was super hot Turned it blue. bike was popping idling ruff i shut the bike down right away i could see the fuel leaking from the second carb from the right if your sitting on it. i gave the bowl a light tape and it stopped so im assuming this is a stuck float ? i then restarted the bike it fired right back up no fuel leak but the pipe that was super hot is know heating up alot slower than the other pipe it did warm up but slowly i went for a short ride and its got no power some backfire under load im talking 60mph is all it would give and it was slow getting there. But it idles like it should and its steady and starts right up. here's the best part
i just got this bike back from a carb cleaning and sync with new mixture screws and o-rings. total bill $350.00 My question is what would cause a extreme in heat like that ??? why would it idle but run like junk under load? i am going back to the mechanic tomorrow :ohmy: im thinking its something the mechanic or do i have a new problem ?

1982 kz1000J

Miles-6700

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26 Feb 2013 01:36 #574207 by Patton
Replied by Patton on topic CHERRY RED EXHAUST?????
Timing advancer might be stuck.
Could try lubing the pivot points.

Good Fortune! :)

1973 Z1
KZ900 LTD

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26 Feb 2013 01:42 #574211 by trianglelaguna
Replied by trianglelaguna on topic CHERRY RED EXHAUST?????
air cooled bikes....need air moving by the engine

1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife
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26 Feb 2013 09:01 #574235 by Steve1986
Replied by Steve1986 on topic CHERRY RED EXHAUST?????
i will look into the timing advancer WILL that make the extremes in heatand power loss. i know it needs air moving to stay cool but i always let my bikes warm up before leaving.(10 min or so) heck my 550ltd u could leave run forever with no issue and it wasnt super hot out yesterday 47 degrees. it worries me to think what it will do on a summer day when it 80 or 90 out. thanks for the tips though

1982 kz1000J

Miles-6700

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26 Feb 2013 11:41 #574250 by peter1958
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26 Feb 2013 14:44 #574264 by Steve1986
Replied by Steve1986 on topic CHERRY RED EXHAUST?????
im in trevorton pa. i just talked to the mechanic that did my carb work (not happy) he tell me it getting way to much fuel how is this possible with stock jets and exhaust. with pod filter? mechanics also tells me he has my mixture screws set at half a turn open. im going crazy with this dam thing

1982 kz1000J

Miles-6700

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26 Feb 2013 15:16 #574268 by kzz1king
Replied by kzz1king on topic CHERRY RED EXHAUST?????
If the bike was flooding the cylinder I would try a new plug or better yet swap the plugs and see if the problem moves.
Wayne

74 Z1 1075, 29 smoothbores, owned and ridden since 1976
Home built KZ1000 turbo setup

www.kzrider.com/forum/11-projects/532476...s-budget-turbo-build

www.kzrider.com/forum/11-projects/532489-74-z-makeover
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26 Feb 2013 15:23 - 26 Feb 2013 15:51 #574269 by NakedFun
Replied by NakedFun on topic CHERRY RED EXHAUST?????
Puking fuel and red hit exhaust could your floats be stuck or set too high? Just a thought. If your timing event is occurring too late as stated with a sticking points plate, you will have the glowing exhaust and poor running at lower speeds. Honestly, I would expect a lean condition to cause a glowing exhaust more than a rich condition. Could you have had junk that cause the float sticking to cause a pilot plugging?

FWIW,
Cory

2008 Kawasaki Concours 14
1999 Kawasaki ZRX1100
1976 Kawasaki KZ900
Last edit: 26 Feb 2013 15:51 by NakedFun. Reason: Added one more thought...

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26 Feb 2013 16:28 #574273 by Steve1986
Replied by Steve1986 on topic CHERRY RED EXHAUST?????
OK i just pulled the plugs the side that is having the heat issue (right pair of cylinder if your on it) plugs were black the side that appeared fine were white which suggest lean on the left and rich on the right pair. i cleaned and re-gaped all 4 plugs put them in fired it up did the same thing im also having back fire out the air filters on the lean side, this make me think the carbs are not set properly and if thats the case how well were they really cleaned? I am going to check the advancer when i get the chance but i dont think this is it due to the fact it ran pretty decent before i took it to the shop NAKEDFUN-- it was a stuck float a little tapping on the bowls made it stop im lost and my local shop doesnt seem to wanna due anything about it

1982 kz1000J

Miles-6700

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26 Feb 2013 17:25 #574279 by NakedFun
Replied by NakedFun on topic CHERRY RED EXHAUST?????
Steve,

If I were closer, I would help you out. From what you are saying, this seems to be a fueling issue and not ignition/advancer. Since you have two different plugs telling you the exact opposite, there is obviously something going on with the carbs. How are your intake boots/manifolds? Are they showing signs of cracking/ They could be craeting a vaccum leak and one cylinder to run lean, due to a weak carb signal. If you had marginal boots, when you reinstalled the carbs, you created some cracks. With the engine running, spray some carb cleaner using the straw, around the carb boots, manifold to cylinder head, etc.. and see if temporarily the engine smooths out. If it does, then that is your culprit. If it doesn't, then it is time to pull the bowls and using the carb cleaner and straw, shoot some cleaner into the pilot and main jets. You may have had debris that didn't get out, hang around and plug the pilot.

Cory

2008 Kawasaki Concours 14
1999 Kawasaki ZRX1100
1976 Kawasaki KZ900
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26 Feb 2013 17:56 #574282 by Steve1986
Replied by Steve1986 on topic CHERRY RED EXHAUST?????
i was thinking carb issue as well i will do the spray test to the carb boots they looked ok when it was apart but i have been wrong before if they were leaking wouldn't that have shown when it was hooked up? also what would it mean if the mixture screws do little in affecting the engine when turned (they are new with new o-rings)that is the reason i was given for them being set at 1/2 turn out

1982 kz1000J

Miles-6700

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26 Feb 2013 18:26 #574283 by Hollywoodmx
Replied by Hollywoodmx on topic CHERRY RED EXHAUST?????
I second on the boots. Been there before. Also the float could be set wrong on the two lean carbs.

- 82 GPz1100injection
- 77 Kz1075 Supercharged
- 81 Yamaha TR-1
- 81 Yamaha xv920
Calgary
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