mark3evo Posted June 22, 2022 Share Posted June 22, 2022 engine threw a valve keeper/collet max revs 140 mph - no compression on 1 cylinder dealer would not warrant as exhaust change and they know he rides bikes to race not catastrophic Quote Link to comment Share on other sites More sharing options...
JOHN-DYNOSTAR Posted June 22, 2022 Share Posted June 22, 2022 sorry after 2 minutes of listening. If he or any of his family "hit" the rev limiter . the engine would definitely be "toast" by the time they shut the throttle fast reactions NOT probably has really good 60' times at the drag race edit watched the vid and had to laugh at "factory defect" Quote Link to comment Share on other sites More sharing options...
mark3evo Posted June 22, 2022 Author Share Posted June 22, 2022 2 hours ago, JOHN-DYNOSTAR said: sorry after 2 minutes of listening. If he or any of his family "hit" the rev limiter . the engine would definitely be "toast" by the time they shut the throttle fast reactions NOT probably has really good 60' times at the drag race edit watched the vid and had to laugh at "factory defect" Lucky I set mine lower then Quote Link to comment Share on other sites More sharing options...
JOHN-DYNOSTAR Posted June 22, 2022 Share Posted June 22, 2022 that motor has been on valve bounce for a long time for the collets to come out . love to see the tops of all the other valve retainers Quote Link to comment Share on other sites More sharing options...
Kzin Posted June 22, 2022 Share Posted June 22, 2022 1 hour ago, JOHN-DYNOSTAR said: that motor has been on valve bounce for a long time for the collets to come out . love to see the tops of all the other valve retainers Quote Link to comment Share on other sites More sharing options...
MikaS Posted June 22, 2022 Share Posted June 22, 2022 3 hours ago, JOHN-DYNOSTAR said: that motor has been on valve bounce for a long time for the collets to come out . love to see the tops of all the other valve retainers What do you think, why it was only the 1st cylinder ? It was quite hard listening to him explain, but i wanted to see the Gen3 valves and head. Valve cover was so tight, was there one screw still in place (?) Quote Link to comment Share on other sites More sharing options...
MikaS Posted June 22, 2022 Share Posted June 22, 2022 It was shimmed wrong Quote Link to comment Share on other sites More sharing options...
mark3evo Posted June 22, 2022 Author Share Posted June 22, 2022 41 minutes ago, MikaS said: It was shimmed wrong i must admit i have taken my old engine to the rev limiter loads of times Quote Link to comment Share on other sites More sharing options...
MikaS Posted June 22, 2022 Share Posted June 22, 2022 It is very usual there are shims around 2.80 thickness, as stock. If there was 2.58 and it should be 2.78 , there is 0.45mm clearance on cyl1 exhaust valves, too much loose on top of valve. I just wonder if there was ticking sound and he missed it. edit: numbers corrected Quote Link to comment Share on other sites More sharing options...
Kzin Posted June 22, 2022 Share Posted June 22, 2022 3 hours ago, mark3evo said: i must admit i have taken my old engine to the rev limiter loads of times Not at 300 miles you haven't.... Quote Link to comment Share on other sites More sharing options...
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