yamaha

[pancho]

i need an exhaust pipe to modify for my xt500 slider. basically i need just the engine pipe down to below the clutch cover. possibly one of an sx 500 might be better, the pipe on it is pretty horrible ---welded up out of bits & pieces i'd like to make a better one. also can any one suggest a piston that i could use on my rt1? it siezed it in the 25 lapper at the nepean 2 day & i now have 2 rti barrells that are already plus 40.since the class is over 250 cc, over size is not a problem, maybe some model 400 piston might do the job...any clues?...cheers wally.[sponsored by centerlink]

[Nathan S]

Piston port or reed-valve RT1?

I can point you in the direction of some reed-valve barrels if they help (I sold them to a mate just recently, and am assuming that he'd be willing to part with one of the four he got...).

[pancho]

 my rti is pre 70 piston port and i therefore need a piston port to keep it eligible plus i rather fancy the thought of a few more cubes thanks for your reply ...wally.

[jimg1au]

wally
you can get the right piston for your non read valve 360rt1 to keep it pre 1970 i have 4 but they are all over 1mm oversize.ebay usa is were i got mine from.

[jimg1au]

http://cgi.ebay.com/ebaymotors/NOS-1970-Yamaha-RT-1-RT1-360-75-Piston-80-75_W0QQcmdZViewItemQQcategoryZ10066QQihZ009QQitemZ190180423039QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/yamaha-rt-1-360-nos-wiseco-piston-kit-184p4_W0QQcmdZViewItemQQcategoryZ35595QQihZ024QQitemZ370038330645QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/New-Yamaha-RT1-Piston-Kit-360-Enduro-RT-1-RT-1-1-50_W0QQcmdZViewItemQQcategoryZ35595QQihZ006QQitemZ160276534536QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/New-Yamaha-RT1-Piston-Kit-360-Enduro-RT-1-RT-1-0-75_W0QQcmdZViewItemQQcategoryZ35595QQihZ006QQitemZ160276534507QQrdZ1QQsspagenameZWDVW
just some of pistons you can buy

[pancho]

thanks for the info jim i have never used ebay but my daughter inlaw is an expert i'll get help,   cheers wally.