67 puch 250

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Joined:Thu Aug 01, 2019 8:48 pm
67 puch 250

Post by BradP » Fri Aug 02, 2019 8:54 am

New here so hi, Brad from Wisconsin. My 67 puc h 250 has been kicking back like my donkey, not sure why. I have fiddled with the points and used tge gauge that is in the tool kit to set them and put new plugs in. It has less than 3k on it but sat in a garage for almost twenty years. It does smoke a lot, don't think that sitting did much good for the cylinders! Timing?
Joined:Thu Sep 24, 2015 11:37 am
Location:Iowa, U.S.A.

Re: 67 puch 250

Post by Falcon_52 » Fri Aug 02, 2019 10:02 am

Hi Brad and welcome to the forum. I would definitely check that your timing is correct. It doesn't take too long and is critical to have right on these engines. There is a nice write-up on Motor West's website on how to do it if you need help (http://motorwestmotorcycles.com/tech/#tips). It's really useful.

Once you confirm/correct the timing, it will run better than ever! If it continues to smoke excessively, your crank seals may be suspect (allowing primary case oil to sneak into the crank case. If the bike was sitting for ~20 years the seals may be pretty hardened.

By the way, what part of Wisconsin are you in? I grew up near Fond du Lac. It's always nice to run into another person from Wisconsin! :)

1959 Sears/Puch 175
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Re: 67 puch 250

Post by fastback » Fri Aug 02, 2019 12:40 pm

Welcome Brad,
I'd second timing - they like to be a bit retarded too.
the world isn't round, it's twisted and bent

1970 750 Fastback
1978 Vespa P125X
1968 Puch/Allstate M125
1966 Puch/Allstate 250
Joined:Thu Aug 01, 2019 8:48 pm

Re: 67 puch 250

Post by BradP » Fri Aug 02, 2019 6:54 pm

Ok thanks for the tip from Motorwest! I will attempt to time the beast. I read recently Matt is not doing so hot health- wise and is selling his biz. I am a Minnesota transplant and have lived by the border outside of Hudson Wi since 1980. Used to be rural but not so much anymore.
Joined:Thu Apr 18, 2013 11:36 am

Re: 67 puch 250

Post by chrisonpuch » Thu Aug 29, 2019 5:57 am

I hate to be a wet blanket but the excessive smoking sounds a bit like my 250 Puch on starting after a long lay up. Mine had crankcase seals which had deteriorated during the time it was laid up. I'm afraid that's a rebuild. Hope I'm wrong.
Joined:Fri Oct 31, 2014 8:13 pm

Re: 67 puch 250

Post by olpuchguy » Thu Aug 29, 2019 7:51 am

Yeah...timing is very important. Smoking? Could be seals. Could also be burning off whatever's laying down in your crankcase, sitting around inside your silencers. That might just take some use to kind of clear out. Personally - it's when it doesn't smoke at all, that I'd really worry.
1969 SR125 sold
1964 150A sold
1965 150A sold
1958 175 Standard
1960 125 Hardtail
1980 Puch Magnum II
1960 Sears Allstate 123.94401 (Yardman Motorette) sold
1960(?) Sears Allstate 1233.94400 (Yardman Motorette) sold
1958 Sears 811.30 scooter sold
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