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TOPIC: New to forum. Bringing a YG-1T back to life.

New to forum. Bringing a YG-1T back to life. 18 Jun 2017 20:35 #1

  • Twopinesandy.
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Hello from Kansas. I have a YG-1T that I am bringing back to life after last hearing it run over 25 years ago. It's all original as I can tell. Need help with sourcing parts and repair help. First thing to repair is the slipping kickstart. Will partially engage the first on or two kicks. Engine does turn over.
Not doing a full restoration but something reliable enough that I can ride around a campground or my property. Thanks for any and all help.

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Last Edit: by Makotosun.

New to forum. Bringing a YG-1T back to life. 18 Jun 2017 21:32 #2

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I saw your post on Facebook - MAN I would love to scan or get a scan of that book you got with the bike for our technical library. I will see if I can pinpoint the clymer manual pages you need.

As far as the kick starter, make sure it is not the spline and the lever on the outside, before looking inside.

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Last Edit: by Makotosun.

New to forum. Bringing a YG-1T back to life. 18 Jun 2017 21:39 #3

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Yeah unfortunately... if I remember correctly... the kickstart mechanism requires splitting the cases on the G1 engines...

RT325 might have some good ideas of what else if could be... I never had trouble with mine.

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1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250

New to forum. Bringing a YG-1T back to life. 18 Jun 2017 22:08 #4

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Hey, lucky you. Looks great. Man if you saw mine you'd wish you could un-see it lol. Kick start--unfortunately it's got to come right apart if you're talking about slipping as in a bit like a ratchet slipping because mine slips a bit from the clutch, luckily not internal. The kickstart drives through the clutch so you can't kick it with the clutch pulled in. If 'that's' slipping it'll feel like pushing a knife through butter but if internal it'll just try & then let go totaly. If you get it to catch slowly then follow through you might get to the bottom.
www.partzilla.com/parts/search/Yamaha/Mo.../YG1/KICK/parts.html

12 fits into 14 & ramps up on where 14 fits on the shaft & rollers lock into 11. Then 15 puts a drag onto 14 & 'makes' the rollers ramp up. Bit of a bugger that it's a major dismantle because i'd be experimenting with trying to repair otherwise rather than replace parts--then again new parts might be hard to find. Rollers will probably have slight flat spots & you'll see where they've been locking into the gear & also will have indents where they lock on the ramps. I'd be trying to dress up the indents a bit & fit new rollers if they're easy to come by at a bearing shop. If you can get a new roller cage & spring clip 15 all the better. Did plenty of this repair back when these were 'the farm bike to have'--or the neat little road bike version which had more top end power. Here's a pic of mine just give you nightmares lol. Was saved from the scrap & goes like hell, just doesn't look like it. I'll put a link as Easier for me. Rescued that & the G5T, Of course no-one's buying at 'that price' but one person says he wants them but i'll believe it when it happens. Oh--& my kick start doesn't slip.
www.trademe.co.nz/Browse/Listing.aspx?id=1349362266
I'd better say Welcome too by the way.

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Last Edit: by RT325.

New to forum. Bringing a YG-1T back to life. 18 Jun 2017 23:00 #5

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Last Edit: by RT325.

New to forum. Bringing a YG-1T back to life. 18 Jun 2017 23:07 #6

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New to forum. Bringing a YG-1T back to life. 18 Jun 2017 23:19 #7

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New to forum. Bringing a YG-1T back to life. 18 Jun 2017 23:28 #8

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New to forum. Bringing a YG-1T back to life. 18 Jun 2017 23:37 #9

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New to forum. Bringing a YG-1T back to life. 20 Jun 2017 15:27 #10

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Kick retainer 102-15689-00-00 is the culprit. Good to replace the rollers though. You do need to split the cases but very simple engine to do.

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Last Edit: by rodss67.
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