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Another 750 cafe build

  • Thread starter Thread starter gs750caferacer
  • Start date Start date
after getting that last hidden bolt off the head just flopped off like it had springs under it!! one of the cam chain plastic guides comes out the other stays in, just lift it out off the head after you lift the head off the cylinder so you dont damage it when trying to set the head down.
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head gasket comes off now... i always try to give it a look over to see any obvious problems like leakage and Etc.
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I also like to check the top of the cylinders and the bottom of the head also. I normally would take a metal ruler or something witha good straight edge and roughly check for any warp-age. and at this point a quick visual inspection for cracks
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can anyone explain to me how it is my pistons were so covered in shi*t... im thinking 30 years of build up and limited services...
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looks like this has been running lean on one cylinder??!?!?! not the pretiest... i guess the valves might need a bit of cleaning up too! What is the best way to go about this? should i ditch the vlavles and get new ones or can you clean up the ones that are light colored?
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well thats it for now.. I will update when its time to remove the cylinders.. should not be that far away yet.. I still need to get a gasket set new valve guides. pending further investigation on that cylinder that is running lean it may be a new head... I suspect a crack but not sure yet?:lol:
 
Got a new set of rings this week and was gifted a rear wheel spoked! Im attempting to get a new head still since the onw i have is in real bad shape! this bike is getting super expensive for the cheap cafe racer i planned! lol!!! Rear sets should be mounted real soon if it stops raining here I will wheel it down to the shop I work at and do a detailed spread on installing those. pictures to come! sorry for the long wait for those interested!! please feel free to send me some motivation!! im lacking some at the moment!
 
fixed the head!

fixed the head!

with a little impatience and a small amount of ingenuity. I have fixed the exhaust bolt screw holes... In the end i cleaned the hell out of the head took it to the drill press opened up the hole, machined a bushing to be slightly. I mean slightly larger than the hole out of steel. soaked it in liquid nitrogen and pressed it in the hole. faced off the steel to a factory finish. drilled and tapped new holes! kinda a pain in the ass when heads are selling on ebay for 30 -40 bucks. but the shipping was too much and i didnt want to wait! hope it will work when the head heats up.
 
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