JeJeBul198 Posted December 9, 2021 Share Posted December 9, 2021 Hello, What is the height of a bultaco sherpa 198A (72mm) piston. I would like the height on the intake and exhaust side (X= and Y=) thank you so much Quote Link to comment Share on other sites More sharing options...
Old Gezzer Posted December 12, 2021 Share Posted December 12, 2021 Hi, I have taken these dimensions from a New 72.5mm Italkit Piston. The exhaust side is 65mm and the Inlet side is 61.5mm These are measured from the bottom of the Skirt to the outer edge of the piston crown. Hope these are of help to you. Old Geezer Quote Link to comment Share on other sites More sharing options...
JeJeBul198 Posted December 12, 2021 Author Share Posted December 12, 2021 thank you very much, is it good for a bultaco 198A? I heard that on some remanufacturing the dimension is not good is that it is necessary to machine the eyebolt. Quote Link to comment Share on other sites More sharing options...
Old Gezzer Posted December 12, 2021 Share Posted December 12, 2021 8 hours ago, JeJeBul198 said: thank you very much, is it good for a bultaco 198A? I heard that on some remanufacturing the dimension is not good is that it is necessary to machine the eyebolt. I have never had any issues with remanufactured pistons as long as they are good quality. Italkit pistons are very good. Quote Link to comment Share on other sites More sharing options...
lorenzo Posted December 13, 2021 Share Posted December 13, 2021 Hi - I've just measured a new Mahle (Bultaco OEM) piston. Dimensions the same as those quoted by Old Gezzer. I expect you know that standard bore of 198A is 71mm.? Quote Link to comment Share on other sites More sharing options...
JeJeBul198 Posted January 21, 2022 Author Share Posted January 21, 2022 It s normal ? Engine PMH Quote Link to comment Share on other sites More sharing options...
slowrider Posted February 14, 2022 Share Posted February 14, 2022 Not sure if it is like the 350 piston, but I noticed there are no holes in the piston of the italkit, pretty sure it needs those to run right? Quote Link to comment Share on other sites More sharing options...
woody Posted February 15, 2022 Share Posted February 15, 2022 On 1/21/2022 at 9:59 PM, JeJeBul198 said: It s normal ? Engine PMH Yes, normal for the 250 Quote Link to comment Share on other sites More sharing options...
woody Posted February 15, 2022 Share Posted February 15, 2022 3 hours ago, slowrider said: Not sure if it is like the 350 piston, but I noticed there are no holes in the piston of the italkit, pretty sure it needs those to run right? No holes in a 250 piston 1 Quote Link to comment Share on other sites More sharing options...
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