seanycozzie16v Posted March 2, 2016 Author Share Posted March 2, 2016 Will try that! That would also cause hard starting/not starting and obviously the misfire yeah? Quote Link to comment Share on other sites More sharing options...
eastanglianbiker Posted March 2, 2016 Share Posted March 2, 2016 yes as its trying to start on 1 cylinder only Quote Link to comment Share on other sites More sharing options...
seanycozzie16v Posted March 2, 2016 Author Share Posted March 2, 2016 (edited) When it does start on cylinder 1 it happily chugs away but as soon as I try to rev it. It dies Edited March 2, 2016 by seanycozzie16v Quote Link to comment Share on other sites More sharing options...
Stu Posted March 2, 2016 Share Posted March 2, 2016 have you tried swapping the plugs to see if it changes on which cylinder it runs on?IE if its running on the rear cylinder if you swap the plugs does it then run on the front cylinder if you have one coil you can also do this with the HT leads too this will eliminate plug and HT problems Quote Link to comment Share on other sites More sharing options...
seanycozzie16v Posted March 2, 2016 Author Share Posted March 2, 2016 Will test ht leads and coils more thourghly later on Quote Link to comment Share on other sites More sharing options...
seanycozzie16v Posted March 3, 2016 Author Share Posted March 3, 2016 Finally got to the bottom of it the bike now runs sweet as a nut after a good run. A friend also suggested to me ht leads that could be shorting out on the body causing it to not spark. Found a bad ht lead. Cut it back a bit and tightly screwed it into the coil again. All back together with the air boxes back on and after a few turns of the starter it breathed into life only on the 1st cylinder though. A few pops and bangs later the 2nd cylinder finally burst into life completely changing the running of the bike. A good blast down my private Lane revving it the whole way up seemed to make things better. Probably a sticky valve as well. We'll anyways this problem has been sorted and the bike is going for its first mot in 8 years next week! Wish me luck! Quote Link to comment Share on other sites More sharing options...
Stu Posted March 3, 2016 Share Posted March 3, 2016 this is why you start with the basic stuff ie swap the plugs then the leads if the problem moves then you have narrowed it down straight away it will have fired up after warming a little the plug will have been wet with fuel and need to be dried out before you have a good spark glad you have it sorted Quote Link to comment Share on other sites More sharing options...
Hoggs Posted March 3, 2016 Share Posted March 3, 2016 Hurrah! I was no help whatsoever so I'll do the bit I can do - wishing you Good luck! Quote Link to comment Share on other sites More sharing options...
seanycozzie16v Posted March 3, 2016 Author Share Posted March 3, 2016 cheers for all the help guys!! new plug leads and plug caps on order!. new plugs in the bike today. runs like a dream now. need to sort out the pilot screw though. i dont know how many turns it should be. also need to adjust the accelerator pump slightly also. a bit jumpy on part throttle atm Quote Link to comment Share on other sites More sharing options...
Tiggie Posted March 3, 2016 Share Posted March 3, 2016 pilot screw default setting is 3 1/4 turns out this might come in useful for youparts listhttps://drive.google.com/file/d/0ByTs1fmYP3rjYl9ERlFXbkp5MTQ/view?usp=sharing& service manualhttps://drive.google.com/file/d/0ByTs1fmYP3rjR3ZfSy1LcjIzN2s/view?usp=sharing Quote Link to comment Share on other sites More sharing options...
seanycozzie16v Posted March 3, 2016 Author Share Posted March 3, 2016 thank you kind sir! got the same bike i see! what exhausts are you running on your bike? standards or some nice turnouts? Quote Link to comment Share on other sites More sharing options...
Tiggie Posted March 3, 2016 Share Posted March 3, 2016 standard and rusty the problem you have had with the ht leads has happened to me and the person who owned the bike before me too. It has been a reliable machine all in all though Quote Link to comment Share on other sites More sharing options...
Classickid21 Posted March 3, 2016 Share Posted March 3, 2016 Check Crank breather make sure the hose is plugged up Quote Link to comment Share on other sites More sharing options...
seanycozzie16v Posted March 3, 2016 Author Share Posted March 3, 2016 mines quite rusty too! i'm sure you would be as well after sitting for 8 years! but thankfully its on the road to recovery! its never going to be a showbike but a daily driver for me! just enough power to keep me happy! Quote Link to comment Share on other sites More sharing options...
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