rBennerZ Posted January 18, 2022 Share Posted January 18, 2022 What is the gasket that goes in between the cylinder head? 4stroke 125. Driving me crazy Quote Link to comment Share on other sites More sharing options...
rBennerZ Posted January 18, 2022 Author Share Posted January 18, 2022 Quote Link to comment Share on other sites More sharing options...
Yorky Posted January 18, 2022 Share Posted January 18, 2022 (edited) 9 minutes ago, rBennerZ said: What is the gasket that goes in between the cylinder head? 4stroke 125. Driving me crazy A rocker gasket, or used to be, probably a cam gasket nowadays  Edited January 18, 2022 by Yorky 1 Quote Link to comment Share on other sites More sharing options...
rBennerZ Posted January 18, 2022 Author Share Posted January 18, 2022 (edited) Thankyou Yorky. Genuinely couldn’t find anything as I didn’t know the actual name of the gasket!! Lol thanks once again Edited January 18, 2022 by rBennerZ Quote Link to comment Share on other sites More sharing options...
rBennerZ Posted January 18, 2022 Author Share Posted January 18, 2022 Sorry but I still cannot find anything… starting to give up with this shit slowly but surely… it’s for k157fmi (silver engine) Suzuki gs 125 copy Quote Link to comment Share on other sites More sharing options...
husoi Posted January 18, 2022 Share Posted January 18, 2022 Check these guys. Maybe they will have your model there with something like this www.partzilla.com 1 Quote Link to comment Share on other sites More sharing options...
JRH Posted January 18, 2022 Share Posted January 18, 2022 (edited) Looked at CMSNL. Suzuki GS 125. Doesn’t seem to be a gasket at that location! https://www.cmsnl.com/suzuki-gs125-1982-z-general-export-united-kingdom-e01-e02_model13415/partslist/FIG1.html#.YeaubIGnyhA  might not be the exact model but all the 125’s seem the same top end. Edited January 18, 2022 by JRH 1 1 Quote Link to comment Share on other sites More sharing options...
oldgrump Posted January 18, 2022 Share Posted January 18, 2022 (edited) Hi @rBennerZ, A lot of the old Honda's and Suzuki's, which your engine is based on never had gaskets between the Head and Rocker Cover, you just put either a small smear of gasket paste, or you never bothered. Â Hence you can't find the Gasket, was there a gasket on engine when you took it apart?? Probably never had one! Â And don't be tempted to make one! you could end up doing damage!! Â Â Edited January 18, 2022 by oldgrump 1 1 Quote Link to comment Share on other sites More sharing options...
rBennerZ Posted January 18, 2022 Author Share Posted January 18, 2022 Many thanks. I haven’t pulled the cylinder head off just yet. I just thought I would get all parts ready for when I do. Thanks for that everyone.. pulling my hair out lol… if it does have a gasket which I presume it won’t. I’ll just use the old one with gasket sealer. Thanks for the help it’s much appreciated 2 Quote Link to comment Share on other sites More sharing options...
James in Brum Posted January 19, 2022 Share Posted January 19, 2022 Worth looking here for parts diagram.  https://www.chinesemotorcyclepartsonline.co.uk Quote Link to comment Share on other sites More sharing options...
fastbob Posted January 19, 2022 Share Posted January 19, 2022 I seriously doubt that there would be no gasket . Usually tappet / valve / cam cover gaskets are made of neoprene ( Rubber ) and are reusable . Quote Link to comment Share on other sites More sharing options...
iangaryprice Posted January 19, 2022 Share Posted January 19, 2022 The "cam cover" on many bikes does not have a gasket, it will require sealant on the surface whne refitting. If the rocker shafts are in the cover then a gasket would allow too much variation affecting the valve gaps. Â 1 Quote Link to comment Share on other sites More sharing options...
fastbob Posted January 19, 2022 Share Posted January 19, 2022 54 minutes ago, iangaryprice said: The "cam cover" on many bikes does not have a gasket, it will require sealant on the surface whne refitting. If the rocker shafts are in the cover then a gasket would allow too much variation affecting the valve gaps.  Ok that may be the case but all my big Suzuki's , the ER5 , the Harley , all CG 125s , Benleys , even the 3TA that I built last year have a Rocker Box gasket or gaskets . Quote Link to comment Share on other sites More sharing options...
iangaryprice Posted January 19, 2022 Share Posted January 19, 2022 1 hour ago, fastbob said: Ok that may be the case but all my big Suzuki's , the ER5 , the Harley , all CG 125s , Benleys , even the 3TA that I built last year have a Rocker Box gasket or gaskets . If you look at the link above for GS125 parts, the cam cover on this engine is also the top half of the bearing for the camshaft. When if forms part of the bearing like this you can't have a gasket, it must be metal to metal to get an exact sized and round hole for the camshaft. My daughters YBR125 and my CB250RS were like this as well, no gasket. My Suzuki CBX550, GSX600, the cover is just a cover and it has a seal, the cams are held in by caps inside the cover.  1 Quote Link to comment Share on other sites More sharing options...
fastbob Posted January 19, 2022 Share Posted January 19, 2022 1 hour ago, iangaryprice said: If you look at the link above for GS125 parts, the cam cover on this engine is also the top half of the bearing for the camshaft. When if forms part of the bearing like this you can't have a gasket, it must be metal to metal to get an exact sized and round hole for the camshaft. My daughters YBR125 and my CB250RS were like this as well, no gasket. My Suzuki CBX550, GSX600, the cover is just a cover and it has a seal, the cams are held in by caps inside the cover.  Fair enough , I know what you mean . Like the old G5 Hondas , the destroyer of many a would-be Biker's dreams . Quote Link to comment Share on other sites More sharing options...
oldgrump Posted January 20, 2022 Share Posted January 20, 2022 1 hour ago, iangaryprice said: If you look at the link above for GS125 parts, the cam cover on this engine is also the top half of the bearing for the camshaft. When if forms part of the bearing like this you can't have a gasket, it must be metal to metal to get an exact sized and round hole for the camshaft. Â Â Hence why I said in my earlier post, Â And don't be tempted to make a gasket, you could end up doing more damage!! The amount of small engines I have had where guys make a gasket out of a cereal packet!!! Then wonder why the engine sounds like a bag of nails!! Because like @iangaryprice say's it's where the cam runs, and it's a machined fit. 1 Quote Link to comment Share on other sites More sharing options...
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