Author Topic: 1985 Kick Start Idle Gear  (Read 6283 times)

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Offline motojason

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1985 Kick Start Idle Gear
« on: April 28, 2014, 02:26:23 PM »
Wondering if anyone has experience using a later model kick starter idle gear in an 85 bottom end? I know the tooth count changed in 86. Thought it might be possible to change the clutch basket, idle gear, and spur gear from an 86 to 88 and get it to work? Has anyone tried this?

Thank you,
Jason
 
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Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #1 on: April 29, 2014, 04:21:14 AM »
Will post some pics over the weekend.

The 85 idler gear (27T) has one broken tooth, but everything else is in usable condition.

Alternate to replacement:
Is it possible to repair a gear? Could it be welded, and the tooth rebuilt and the gear heat treated?
Anyone know of a shop in the US capable of doing that type of work?

Thanks!
jason
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Offline sandblaster

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Re: 1985 Kick Start Idle Gear
« Reply #2 on: April 29, 2014, 04:32:52 AM »
Hey Jason,
Just to let you know, the one you need - FITS 83-85 KX500 - P/N 59051-1107
I would look on eBay every day.
You might also want to fine a complete engine or a bottom end.
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Motorrad

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Re: 1985 Kick Start Idle Gear
« Reply #3 on: April 29, 2014, 05:10:07 AM »
What's the tooth count on the new one?   Some times like on transmissions they change tooth count on only one gear.

Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #4 on: April 29, 2014, 05:14:48 AM »
Yes, 83-85 should be the same (27T) gear, thank you. Have been looking on ebay for months, calling salvage yards, and putting feelers out to the vintage race community. No luck so far. I got out bid on a bottom end that was in MI, but that was in early March and there has been nothing since.  
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Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #5 on: April 29, 2014, 05:15:32 AM »
86-04 Idler gears have 26 teeth.
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Offline sandblaster

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Re: 1985 Kick Start Idle Gear
« Reply #6 on: April 29, 2014, 06:27:16 AM »
You are correct, they have 26T all the way to 04.
I do have a few newer parts in my junk piles and could get you some measurements.
If you take measurements of what you need and make a small diagram showing what you have measured, I could get some comparison measurements.
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #7 on: April 29, 2014, 06:41:13 AM »
Thanks Sandblaster! I am traveling for work this week. I'll get the parts measured and post the info over the weekend when I am back at home.
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Offline sandblaster

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Re: 1985 Kick Start Idle Gear
« Reply #8 on: April 29, 2014, 06:44:26 AM »
Ok, If I miss your post, shoot me a PM and I'll get you what you need.
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Motorrad

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Re: 1985 Kick Start Idle Gear
« Reply #9 on: April 29, 2014, 08:38:42 AM »
Take measurements the new one may work with minor modifications

Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #10 on: May 03, 2014, 12:17:46 PM »
You are correct, they have 26T all the way to 04.
I do have a few newer parts in my junk piles and could get you some measurements.
If you take measurements of what you need and make a small diagram showing what you have measured, I could get some comparison measurements.



Let me know if you have any questions. Appreciate the help!
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Offline sandblaster

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Re: 1985 Kick Start Idle Gear
« Reply #11 on: May 03, 2014, 01:33:19 PM »
I'll be very busy on Monday so I may not be able to get the measurements until Tuesday.
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #12 on: May 04, 2014, 06:08:35 AM »
Great, thanks! I'll check back in mid-week.
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Offline sandblaster

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Re: 1985 Kick Start Idle Gear
« Reply #13 on: May 05, 2014, 06:50:45 AM »


I would measure your clutch basket as well as the spacing between the kick idler shaft and the clutch trans shaft..
« Last Edit: May 05, 2014, 06:53:23 AM by sandblaster »
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline motojason

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Re: 1985 Kick Start Idle Gear
« Reply #14 on: May 05, 2014, 01:23:04 PM »
Thank you! There is quite a bit of difference in thickness. I will take some more measurements. Given the near 4mm difference in tooth width I am concerned that even if the shaft centers, and diameters align with the 86+ parts that the offsets and cover clearances might not work out.

   
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