r1chard06 Posted January 10, 2019 Report Share Posted January 10, 2019 Anyone no if head gaskets changed around 1991 I’ve orderd a few replacement but there all same and don’t fit there to thin and sit lower than channel there in Quote Link to comment Share on other sites More sharing options...
arnoux Posted January 10, 2019 Report Share Posted January 10, 2019 Are you referring to the Aire (air cooled) or the Delta (water-cooled), both are from 91? The Cylinder head O Rings on the 91 Delta are listed in the original parts book as: M01619115 80mm x 2.62mm and M01619110 125mm x 2.62mm The Aire gasket part number is not listed in the original parts book, but it looks like a paper gasket. Quote Link to comment Share on other sites More sharing options...
r1chard06 Posted January 10, 2019 Author Report Share Posted January 10, 2019 Water cooled I think it’s a delta as looked at pics looks like mine with gold head and gasgas logo Quote Link to comment Share on other sites More sharing options...
r1chard06 Posted January 10, 2019 Author Report Share Posted January 10, 2019 Also you wouldn’t have a wording diagram and info on fork seals change I thought my bike was a 93 as it has coolant tank Quote Link to comment Share on other sites More sharing options...
lineaway Posted January 11, 2019 Report Share Posted January 11, 2019 I thought `93 was the first year of case induction on the 250? Quote Link to comment Share on other sites More sharing options...
tshock250 Posted January 11, 2019 Report Share Posted January 11, 2019 Can you post a picture of the bike so we can see exactly what you've got? Quote Link to comment Share on other sites More sharing options...
r1chard06 Posted January 11, 2019 Author Report Share Posted January 11, 2019 Also you wouldn’t have a wording diagram and info on fork seals change I thought my bike was a 93 as it has coolant tank Quote Link to comment Share on other sites More sharing options...
tshock250 Posted January 11, 2019 Report Share Posted January 11, 2019 Wow, that's a rare old beast. Almost certain its a Delta, plastics would originally have been white (1990) or green/purple (1991) Looks like a delta engine plus has other delta parts on it so pretty sure that's what it is. Quote Link to comment Share on other sites More sharing options...
r1chard06 Posted January 11, 2019 Author Report Share Posted January 11, 2019 Anyone tell me if head gaskets were different than 1993 model I thought was delta but has coolant tank that only came out on 93 one Quote Link to comment Share on other sites More sharing options...
lineaway Posted January 11, 2019 Report Share Posted January 11, 2019 The 1993 engine was completely different. Quote Link to comment Share on other sites More sharing options...
oni nou Posted January 11, 2019 Report Share Posted January 11, 2019 https://youtu.be/9NjnN_pZDjE Quote Link to comment Share on other sites More sharing options...
copemech Posted January 12, 2019 Report Share Posted January 12, 2019 not many around? good reason for that! Quote Link to comment Share on other sites More sharing options...
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