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The_Proletariat 550 project 13 May 2016 17:47 #726258

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Maybe 2000 miles.
1982 Kawasaki KZ550 LTD

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The_Proletariat 550 project 13 May 2016 17:49 #726259

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I'd try some new plugs.
Steve

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The_Proletariat 550 project 13 May 2016 17:52 #726262

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swest wrote: I'd try some new plugs.
Steve


I have new plugs and wires. What is the best way to route the wires? It seems like a bad idea to just let them lay on top of the valve cover. I have them zip tied up above the valve cover but I feel there must be a better way.
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The_Proletariat 550 project 13 May 2016 18:03 #726264

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Mine aren't fastened.
Steve

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The_Proletariat 550 project 13 May 2016 18:25 #726276

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What do you suggest as my next step? I assume put a few miles on new plugs and then check them?
1982 Kawasaki KZ550 LTD

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The_Proletariat 550 project 13 May 2016 18:35 #726282

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Good idea. Then you'l be able to see what's happening now.
Steve

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The_Proletariat 550 project 13 May 2016 20:25 #726292

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That #3 plug doesn't look terrible, but the threaded outer metal shell does seem to have less black on it compared to the others, so there may be a vac leak (which I know you've already checked for).

A vacuum leak should will not have any effect at higher throttle positions and RPMs. The sound youa re hearing must be something else. Pods will give a sucking sound that can sound like a vacuum issue.

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The_Proletariat 550 project 13 May 2016 20:58 #726301

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loudhvx wrote: Pods will give a sucking sound that can sound like a vacuum issue.


That is a question I had. I can hear this at idle, but it is very noticeable at moderate rpms under load.

I need to figure out this cyl 3 miss and backfire.
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The_Proletariat 550 project 13 May 2016 21:03 #726302

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Out of sync carbs will do that.
Steve

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The_Proletariat 550 project 24 May 2016 06:46 #728215

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Sorry about the vertical camera angle. I don't own a cell phone and I am still new to taking videos with one.
My final sync is not this close as tiny changes made while tightening the lock nuts have big changes, but is better than it was. It is stronger off idle, and throttle response is more uniform. Much less noise from the primary chain knocking around.

I have idle set at 1200-1300 per the ND tach. I understand the FSM spec is lower however this is the lowest rpm I can get a somewhat smooth idle.

I achieved my highest idle with three airscrews at 1 turn in, and one at 1/2 turn in. I still get a cyl 3 backfire with the choke on, but no backfire with the choke off. The miss that I can't figure out is still there,

Rode to work today. It was about 50 degrees and I was able to come off choke pretty quickly.

I will check the new plugs soon.
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The_Proletariat 550 project 24 May 2016 07:12 #728219

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If you can get #2 up a touch, the rest should drop.
Steve

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The_Proletariat 550 project 24 May 2016 07:50 #728227

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swest wrote: If you can get #2 up a touch, the rest should drop.
Steve


They will, but they will all move by different amounts. After touching up the others one of them will have affected #2 and who knows where it will be then. I was just pumped to get 3 to read the same.

I am now in version 3 of my homemade tool. Perhaps my meter has some design flaws. I assume I would get better results with a Carbtune.
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