lill biker Posted March 24, 2010 Share Posted March 24, 2010 i have a1980 sr250 yamaha that has tapping noise from top half of motor can it be adjusted or fixed where can i find spec. pic. of it Link to comment Share on other sites More sharing options...
YPVS TONE Posted March 24, 2010 Share Posted March 24, 2010 Have you had the valve clearance's checked ? .Tony. Link to comment Share on other sites More sharing options...
lill biker Posted March 24, 2010 Author Share Posted March 24, 2010 Have you had the valve clearance's checked ? .Tony. Link to comment Share on other sites More sharing options...
lill biker Posted March 24, 2010 Author Share Posted March 24, 2010 no i havent never been inside a bike motor Link to comment Share on other sites More sharing options...
Khunangkaro Posted April 5, 2010 Share Posted April 5, 2010 i have a1980 sr250 yamaha that has tapping noise from top half of motor can it be adjusted or fixed where can i find spec. pic. of it Look up in the manual. Little ticking are valves: adjust. Rattling is loose distribution chain: adjust. Mine has irregular ticks (like electrical sparks) at low revs, mostly when cold starting. Guess this is/are sticking piston rings loosening. I do not care. Also have a slight knock down, when starting cold. Stops after 15 seconds or so. Guess this is main bearing loose/wear dry with little oil when starting up. Just carefully wait till oil is pumped there. These engines are thirty or so years old. So i do not drive faster than 100 km/hr (~6000+ revs) and usually keep it around 80. Drive most of the time with two up. My wife weights only about 55 kg, but it makes a difference with driving one up. Where we live the roads/country are/is almost flat. On very steep hills it was hard work in first gear when we made a 1200 km trip to North Thailand. Link to comment Share on other sites More sharing options...
mad4th Posted May 21, 2011 Share Posted May 21, 2011 Just bought the same bike and getting the same noise...I'm taking it in for a safety and I'll let you know...you have me all paranoid Link to comment Share on other sites More sharing options...
skik Posted December 7, 2011 Share Posted December 7, 2011 Just bought the same bike and getting the same noise...I'm taking it in for a safety and I'll let you know...you have me all paranoid hi.i to have just bought a 1981 sr250 that im going to restore.it also sounds rattly.did you get yours checked?and what was the out come Link to comment Share on other sites More sharing options...
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