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Conchop
| | Posted on Tuesday, February 19, 2008 - 08:48 am: | 
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I just noticed, just as I was heading home, the difference in my Uly once I started running the hell out her. She was happy. I wonder if this is the "averaging" the computer does. Gas is a factor ,too. Some gas dealers are bandits and the refineries can produce what we call 'pump piss'. |
Electraglider_1997
| | Posted on Tuesday, February 19, 2008 - 10:47 am: |
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What happens to the internals of a plug once it is fouled? Does it crap out inside also thereby making it useless even if cleaned?
Anybody try one of these yet, http://www.pulstarplug.com/howtheywork.html
I don't even know if a correct size can be had and the price is kind of steep, but it looks kind of neat.
http://www.pulstarplug.com/images/press/WhitePaperAuto.pdf
(Message edited by electraglider_1997 on February 19, 2008) |
Etennuly
| | Posted on Tuesday, February 19, 2008 - 02:28 pm: |
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Electraglider,
I don't know for sure what wet fouling does to the plugs. I did an experiment to prove my theory to a friend of mine who was helping with the race car I had way back when.
I bought one of those mini spark plug sand blasters from Champion, the type that would mount on the front of your work bench. It was a mini bead blaster that would make nearly any plug look new. I had a couple of sets that had been wet fouled in the race engine and did the cleaning/re-gapping/re-boxing. I marked them to know which ones had been fouled and which ones had just been cleaned.
We put a full set in that had been marked and it fired right up running fine. Warmed it up and ran a heat race. It skipped and missed at the upper end of the RPM range. With no other changes we put in the cleaned NOT fouled plugs and it kicked butt in the feature and never missed a bit.
I had a new '79 Honda CB750F that had a manual choke. If I forgot it would foul the plugs. Put them through the cleaner, re-installed them and it wouldn't start. Just popped and quit. Immediately put in new plugs it fired right up and ran fine. Pull start snomobiles, the same.
I really don't know what it does to them, but where I have been they never work the same. |
Bosh
| | Posted on Tuesday, February 19, 2008 - 04:31 pm: |
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I had a new '79 Honda CB750F that had a manual choke.
I had one of those! My first sport bike.
Sold it to my buddy and he still commutes on it today! |
Etennuly
| | Posted on Tuesday, February 19, 2008 - 05:05 pm: |
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Great bike for the time wasn't it? Mine was black with the easily fried Bridgestone tires.
Did you have that annoying can't ride more than 125 miles in a day, high frequency buzz? Not really a vibration from the engine, more like a harmonic thing that would put your ass to sleep clear up to the shoulders.
I loved the looks of that bike. Really stylish sportiness. Sure not a Uly though. My top three street bikes so far; 1. Ulysses, 2. '86 V65 Magna, 3. '79 CB750F. |
Dio
| | Posted on Wednesday, February 20, 2008 - 10:59 pm: |
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Had an '82 CB900F. It had the same buzz, and also had a tendency to foul plugs within a mile or two after starting up. Always seemed to be #2 or#3 cylinder - the one's hardest to change. |
Etennuly
| | Posted on Wednesday, February 20, 2008 - 11:42 pm: |
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When I bought that 750F, they had a beautiful new red CBX sitting there. I had my finger on the trigger until my insurance company said no. Being 21 and knowing everything, I was already in the insurance "risk pool". They said nothing over 750cc.
I literally spent more time cleaning that black bike than I did riding it. I only put 10,000 miles on it in four years. But it was cleaner than it was when it was new.
It was clearly a step up from the SOHC CB's from the earlier years. The sales guy told me that I wouldn't be able to drag the pipes and pegs on that one. Ha! I took it back in a week for the 500 mile service and showed him that the pipes and pegs would indeed drag.
Those original Bridgestone tires were crappy tires. Good for big burn outs, but handling was slippery at best. I think it was in 1980 that Dunlop came out with their touring elete series of tires. I ran that bike at the 1/4 mile at least once a year.
Turn the throttle to 7,000 RPM's, drop the clutch and ride a smokin' burn out shift at 11,500. The first time out with the Dunlop on the rear, turned it up to 7,000 RPM, the start tower lights clicked down, yellow, yellow, green! Stood that sumbich straight up! I couldn't release the throttle because I wrapped my right hand and arm over so that it was level when it was wide open. If it wasn't for hooking my legs on the rear turnsignals I would have been flapping like a flag behind that bike. It went straight and finally came down after over revving a bit. When the front tire came down I hit second and still beat the 750 Seca in the lane beside me.
Ahhhh the good old days. |
Bosh
| | Posted on Thursday, February 21, 2008 - 12:26 am: |
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Ahhhh the good old days.
Hondas 1st DOHC IL4. I think the first production bike that made 1hp/liter as well.
My buddy let me ride it about a year ago for old times sake..... it felt like a slug. |
Etennuly
| | Posted on Thursday, February 21, 2008 - 09:41 am: |
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My buddy let me ride it about a year ago for old times sake..... it felt like a slug. 
It WAS a slug.....we just didn't know it at the time. It was such an improvement over the 1974 CB750! That was the pig of slugs as far as handling and overall riding.
Sure ain't no Uly! |
Electraglider_1997
| | Posted on Thursday, February 21, 2008 - 10:46 am: |
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I bought a 74' CB750 ( SOHC ) during my high school senior year in 74'. King of the world. Drag raced against a friend's 750 Triumph and got spanked real bad. Went off to the USMC in 75' and a year and a half later traded the 74' CB750 in on a new 77' CB750F with the blacked out engine. Still have that bike but it hasn't run for at least 25 years. Really enjoyed that bike except for the tappet adjustments every couple of weeks. I could do all eight in about 20 minutes but they wouldn't hold spec for long. I used to gear lube the chain darn near daily and it never stretched more than a 1/4 inch in 33,000 miles. |
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