aldy13 Posted October 2, 2016 Report Share Posted October 2, 2016 Hi Was riding the bike today in a trial and it was running great all of a sudden it just started rattling really loudly from the top end no warning or anything. All levels ok and fan was cutting in and out as usual, any ideas? Cheers Andy Quote Link to comment Share on other sites More sharing options...
greychapel Posted October 2, 2016 Report Share Posted October 2, 2016 cam chain (tensioner failure)? Quote Link to comment Share on other sites More sharing options...
aldy13 Posted October 11, 2016 Author Report Share Posted October 11, 2016 (edited) camchain tensioner was ok, decompressor spring ok, turns out loose camchain pulley bolts were the culprit. Now torqued back up with loctite and runs like a Swiss watch again Edited October 12, 2016 by aldy13 Quote Link to comment Share on other sites More sharing options...
retromlc Posted October 12, 2016 Report Share Posted October 12, 2016 how long have you had the 300 4t? Quote Link to comment Share on other sites More sharing options...
aldy13 Posted October 13, 2016 Author Report Share Posted October 13, 2016 how long have you had the 300 4t? about 5 months or so, never had a 4 stroke bike before but its a lovely bike to ride even for my limited ability lol Quote Link to comment Share on other sites More sharing options...
retromlc Posted October 13, 2016 Report Share Posted October 13, 2016 have a 4t 250 and i'm recovering from a collar bone so i've just tried it on balance on the flat and I'm liking it a lot Quote Link to comment Share on other sites More sharing options...
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