I have a bad ticking sound in the top end of my motor on my 1987 yamaha moto 4 250 how do i fix that

SOURCE: loud Screeching noise when printing.

if i was you just phone HP and get it replaced, thats if its still in warrenty.

SOURCE: What tipe MOTOR oil use yamaha 750 FZ, 1987 YEAR

a good 10w40 oil..if you dont know what type was used before then i would flush the engine then put the new oil in

SOURCE: 1998 yamaha grizzly engine noise

you may have a collapsed lifter

SOURCE: Yamaha YFM350 Moto-4 & Big

No freebies here, but you can do a quick search and find some good service manuals from www.midwestmanuals.com for about $8. A good deal considering the paper versions can run $30+.

SOURCE: My 2001 Yamaha warrior yfm 350 makes a loud ticking noise

had the same thing on my 350 the adjustment screw for the valves had backed out had to readjust them and replace lock nuts