jamescahood Posted September 9, 2007 Share Posted September 9, 2007 I just recently purchased a 1980 Yamaha XS 400 SG. I was just wondering what oil is best for this bike? The manual I have recommends 20w/50. I know there is special motorcycle engine oil anyone better than the other? Synthetic or conventional? I need new tires as these are pretty dry rotten. IRC RC RS310 90/90B-18 BLK FRONT, IRC RS310 120/90B-16 BLK REAR, Are these pretty good tires for just everyday riding? If anyone has any useful information about tuning this bike or anything I should check out I would greatly appreciate it. I'm new to motorcycle maintance so anything helpful would be great. Thank you in advance! [email protected] Link to comment Share on other sites More sharing options...
Moderator drewpy Posted September 9, 2007 Moderator Share Posted September 9, 2007 I just recently purchased a 1980 Yamaha XS 400 SG. I was just wondering what oil is best for this bike? The manual I have recommends 20w/50. I know there is special motorcycle engine oil anyone better than the other? Synthetic or conventional? I need new tires as these are pretty dry rotten. IRC RC RS310 90/90B-18 BLK FRONT, IRC RS310 120/90B-16 BLK REAR, Are these pretty good tires for just everyday riding? If anyone has any useful information about tuning this bike or anything I should check out I would greatly appreciate it. I'm new to motorcycle maintance so anything helpful would be great. Thank you in advance! [email protected] I'm using 10w 40. I did use 20w50 and if you have really hot weather then i would go for that. I use semi-synthetic as full synth with make your clutch slip!! the best tyres i have in use are Bridgestone BT45, the RD boys recommend these as well As far as tuning goes Megacycle cams do a reprofiled cam for the xs click here for specs etc try bike bandit as they will list your bike and also publish data. Drewpy Link to comment Share on other sites More sharing options...
MVTECH Posted September 13, 2007 Share Posted September 13, 2007 Hey drewpy... Greetings from Puerto Rico, I just want to know if you know of any other performance sites for the xs400 , I also have a 1980 xs400sg and i'm looking for performance upgrades (bolt on's if so) Thank's Melvin. Link to comment Share on other sites More sharing options...
Moderator drewpy Posted September 13, 2007 Moderator Share Posted September 13, 2007 Hey drewpy... Greetings from Puerto Rico, I just want to know if you know of any other performance sites for the xs400 , I also have a 1980 xs400sg and i'm looking for performance upgrades (bolt on's if so) Thank's Melvin. there's not a lot really, Motad exhausts, and the cams mentioned previously. you can go twin disk up front using SR 500 left fork and caliper with an xs1100 master cylinder. the yam xs's were pretty much perfect as they came. there was even a Yamaha sponsered race in Germany called the Yamaha Cup and these used XS400's for a time. These came with full fairing and plastic combined tank/seat unit. everthing else was standard. Link to comment Share on other sites More sharing options...
MVTECH Posted September 17, 2007 Share Posted September 17, 2007 Thank's for the info, I'm looking foward at the cam upgrade and i like the idea of the dual front disc brake, I really appreciate your info's and replys Thank's again Melvin there's not a lot really, Motad exhausts, and the cams mentioned previously. you can go twin disk up front using SR 500 left fork and caliper with an xs1100 master cylinder. the yam xs's were pretty much perfect as they came. there was even a Yamaha sponsered race in Germany called the Yamaha Cup and these used XS400's for a time. These came with full fairing and plastic combined tank/seat unit. everthing else was standard. Link to comment Share on other sites More sharing options...
Moderator drewpy Posted September 17, 2007 Moderator Share Posted September 17, 2007 Yamaha cup xs400 with Kenny Link to comment Share on other sites More sharing options...
MVTECH Posted September 18, 2007 Share Posted September 18, 2007 Looks really nice.. Great little bike... Link to comment Share on other sites More sharing options...
guakamolie Posted September 24, 2007 Share Posted September 24, 2007 hey drewpy, so how much hp would these cams make ?? and do you anyone that has them ?? also, how much do they cost ?? nice bike btw Link to comment Share on other sites More sharing options...
Moderator drewpy Posted September 24, 2007 Moderator Share Posted September 24, 2007 hey drewpy, so how much hp would these cams make ?? and do you anyone that has them ?? also, how much do they cost ?? nice bike btw no idea mate, need to contact megacams and then let us all know. I didn't get one as its a bit far to send and havn't got the dosh yet Link to comment Share on other sites More sharing options...
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