Rotations Required to complete 1 full Re-indexing of Balancer timing marks? - Kawasaki KLR 650 Forum
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post #1 of 6 Old 02-17-2020, 08:04 PM Thread Starter
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Rotations Required to complete 1 full Re-indexing of Balancer timing marks?

Who on this forum is either mathematically sharp enough or has taken the time to count the required rotations to RE-INDEX the Engine Balancer Chain & Sprocket links & marks?

I found an older thread and for a bit I thought 'LoneRider' was gonna' supply the answer, but he didn't.

I am not very mathematically inclined! So I counted them myself and it is exactly HALF of what I thought I had read at one time on the 'dark.net' .

This is only so we can all better answer newer owners questions about the engine balancer & Doo-Hickey.

pdwestman
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post #2 of 6 Old 02-17-2020, 09:26 PM
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I get 35 crank revolutions, which brings the chain around 9 times before the silver links and the dimples re-align.

Each crank revolution turns the chain through 25.71428571% of its length, so it takes 35 revolutions of the crank to get to the first whole number of chain revolutions, which is 9.

One revolution of the chain turns the crank 3.88888888888889 times. The first whole number of crank turns is after the chain has gone around 9 times, turning the crank 35 times.

It will appear to be extremely close at several points, notably 4,8, and 12 revolutions of the crank, at which points the chain will have gone around 1.0286, 2.0571, and 3.0857 times respectively. Basically, every four turns it will look quite close but it ain't perfec,t and the more multiples of four the crank is turned the further off the chain gets. But multiples of four is when it is closest.

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Last edited by Tom Schmitz; 02-17-2020 at 09:39 PM.
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post #3 of 6 Old 02-18-2020, 07:42 AM
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Quote:
Originally Posted by pdwestman View Post
I found an older thread and for a bit I thought 'LoneRider' was gonna' supply the answer, but he didn't.
LoneRider (IMHO) provided extensive helpful information on the forum, while he posted. I hope for his return, as I do VATrader's.

You better put down that gun. You got two ways to go, put it down or use it. Even if you tie me, youre gonna be dead. "John Russell" (Paul Newman), Hombre
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post #4 of 6 Old 02-18-2020, 11:24 AM Thread Starter
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I do remember those names, but I hadn't posted much on this forum by the time those 2 members dropped out of site.

I also miss larry31, Just Jeff, Ski-Bum Brian, acidman and Savage to name a few.

And yes, I counted 35 revolutions from assembly '0' point to Fully Re-Indexed to '0' point of Balancer Chain and Sprockets. Glad that I didn't have to rotate 70 revs.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #5 of 6 Old 02-18-2020, 04:00 PM
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I've only done this once and it was at least five years ago. I remember that it took many turns to get it to come around again, but I admit to being surprised that the answer I got was 35 turns!

Tom [email protected]

I still held his automatic more or less pointed at him, but he swung on me just the same. It caught me flush on the chin. It was meant to be a hard one, but a pansy has no iron in his bones, whatever he looks like. -Philip Marlowe

'Why' and 'How' are words so important they cannot be too often used. -Napoleon Bonaparte

Sting like a butterfly.
Noli Timere Messorem
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post #6 of 6 Old 02-18-2020, 09:02 PM Thread Starter
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Both the 2005 sprocket donor engine & my '87 were apparently close to the end of Cycle when I removed the inner covers.

OH! I can now say that I have found my 1st broken OEM doo-hickey tensioner spring in the 2005 donor engine, mileage UN-Known. Destroyed EX cam bearings.

My '87 with extension spring EM Doo-Hickey doesn't appear to have re-adjusted but about 1/16th of an inch in about 29,000 miles. It is getting a new EM Torsion Spring.

pdwestman
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