symonds Posted October 8, 2008 Share Posted October 8, 2008 i recently bought a 82 maxum 650 in real good shape for $50, guy needed money. It cam with 2 catches one not so bad it needs a rear tire. the other issue i need help with. The PO said he was driving it home from work and it suddenly started smoking and blowing oil from somewhere,wasn't sure where. i added oil and it fired right up and runs and sounds fine with no smoke or leaks. i noticed there in no air filter element and the carb boots are a lil dry rotted? any help would be great im an ASE car tech but i'll admit with bikes i have alot to learn thanks and sorry for the long post Derrick Link to comment Share on other sites More sharing options...
symonds Posted October 9, 2008 Author Share Posted October 9, 2008 i recently bought a 82 maxum 650 in real good shape for $50, guy needed money. It cam with 2 catches one not so bad it needs a rear tire. the other issue i need help with. The PO said he was driving it home from work and it suddenly started smoking and blowing oil from somewhere,wasn't sure where. i added oil and it fired right up and runs and sounds fine with no smoke or leaks. i noticed there in no air filter element and the carb boots are a lil dry rotted? any help would be great im an ASE car tech but i'll admit with bikes i have alot to learn thanks and sorry for the long post Derrick it was finally warm enough to to get engine warm without being able to ride it. once it got a lil heat in the motor blue smoke came out of both pipes so i am suspecting rings are bad. how hard are these engines to rebuild the topend on? i have rebuild many car engines but never a bike. can i have it bored over and buy oversized pistons like you would fo a car engine? sorry for the stupid questions. o one more thing where is a good place to get a good manual for this bike. thanks Derrick Link to comment Share on other sites More sharing options...
jeepurz Posted October 10, 2008 Share Posted October 10, 2008 dont know if these pics will help , i parted one out last yr. purty straight foward dohc type removal. & Ive got no idea what im pointing at in pics now but prob a collit or hidden bolt. dont forget this bolt. Link to comment Share on other sites More sharing options...
jeepurz Posted October 10, 2008 Share Posted October 10, 2008 head came off in frame but I cant remember if jugs do too or I had to pull motor out to remove jugs. I do remember motor arount drive shaft was a PIA to remove. Link to comment Share on other sites More sharing options...
symonds Posted October 10, 2008 Author Share Posted October 10, 2008 head came off in frame but I cant remember if jugs do too or I had to pull motor out to remove jugs. I do remember motor arount drive shaft was a PIA to remove. that helps alot but i am having a problem figuring out what this bike is, the title says its an 82 yamaha vin 5K5020720 the model plates on the side covers of the bike are gone so i need help with this so i can get parts. thanks derrick Link to comment Share on other sites More sharing options...
jeepurz Posted October 10, 2008 Share Posted October 10, 2008 should be 17 dig vin on neck of bike. enter that into below link. http://www.motoverse.com/tools/vin/yamaha.asp Link to comment Share on other sites More sharing options...
symonds Posted October 10, 2008 Author Share Posted October 10, 2008 should be 17 dig vin on neck of bike. enter that into below link. http://www.motoverse.com/tools/vin/yamaha.asp you were right i found the sticker in the neck and according the the vin it is a 82 xj 550 not a maxum 650 as the owner said. thnaks so much for the help so far Link to comment Share on other sites More sharing options...
symonds Posted October 11, 2008 Author Share Posted October 11, 2008 you were right i found the sticker in the neck and according the the vin it is a 82 xj 550 not a maxum 650 as the owner said. thnaks so much for the help so far i got it torn down and found my oil burning problem, number 3 piston has a hole in the center of it. im thinkin the carb was plugged causein the cylinder to run lean. my new problem is i can't find parts for this bike does anyone here know of a source to buy parts for these older yamahas? Link to comment Share on other sites More sharing options...
jeepurz Posted October 11, 2008 Share Posted October 11, 2008 if ya dont see it on ebay check here. http://www.xjbikes.com/index.php Link to comment Share on other sites More sharing options...
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