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Posted

im over at my buddy's shop reassembeling the bottom end of the motor. anyone have any tips, suggestions to make the rebuild real smooth? anything you guys would do to ensure good sealing and such?

 

ill be heading out to the local shop too to pick up some gear oil. what do you guy's suggest i use for it? (its gonna be a mild dunes bike with some mod's.... porting, pipes, carb, timing etc.... possibly looking at around 60-75 hp when all's said and done.) thanks.

Posted

as far as sealing goes just put some yamabond or what ever it is your uing on both case halfs all the way aroung and in the small parts in the middle and you will get a good seal.. i use gearsaver 80w its pretty easy to rebuild... just go through the clymers and you will have it...

Posted

as far as sealing goes just put some yamabond or what ever it is your uing on both case halfs all the way aroung and in the small parts in the middle and you will get a good seal.. i use gearsaver 80w its pretty easy to rebuild... just go through the clymers and you will have it...

 

heey thanks. yea, the rebuilding process is fairly simple (photographic memory when it comes to this stuff :thumbsup: ) im taking my time cleaning evrything makin sure no dirt or anything is on the bearings or my fingers while im doin it.

 

ill pick up some of that gearsavers if i can find some at the shop. ill need to pick up a bottle of the yamalube i guess too. do you know if i shoud smeere a bit of gear oil on the seals before passing parts through them and such?? figure its better then placing them in there dry :shrug:

Posted

heey thanks. yea, the rebuilding process is fairly simple (photographic memory when it comes to this stuff :thumbsup: ) im taking my time cleaning evrything makin sure no dirt or anything is on the bearings or my fingers while im doin it.

 

ill pick up some of that gearsavers if i can find some at the shop. ill need to pick up a bottle of the yamalube i guess too. do you know if i shoud smeere a bit of gear oil on the seals before passing parts through them and such?? figure its better then placing them in there dry :shrug:

Most of your seals will have a concave groove on the inside. You want to pack that groove with waterproof grease.

 

Also I clean the mating surfaces of the case halves down with contact cleaner or grease remover and a q-tip. Most guys probobly think its overkill, but I like to make sure the yamabond will adhere well. It's just like preping something for paint, imo.

Posted

Most of your seals will have a concave groove on the inside. You want to pack that groove with waterproof grease.

 

Also I clean the mating surfaces of the case halves down with contact cleaner or grease remover and a q-tip. Most guys probobly think its overkill, but I like to make sure the yamabond will adhere well. It's just like preping something for paint, imo.

 

roger that guys, thanks! ill take evrything in and make sure this stuff gets done. just wanna make sure it gets done right the first time so i dont have to go back and do it again due to an oversight. also got the clymers manual a while ago to check in on all the steps along the way!

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