redlineluke

excellent idea in theory, yes me bike is pgmfi basically fuel injected its got a little baby injector stuffed in there in the front of the throttle body, and the drain pipe seems to be working pretty well but i do blast a load of wd-40 down it from time to time as a general maintenance as well as cleaning out the crank breather, the issue seems to have resolved its self recently since i fiddled about with the starter relay was a bit of that usual white powdery crap all over both contacts so cleaned all that off and haven't noticed the issue since also cut the end off the coil lead and re screwed the spark plug cap on so i can only deduce it was either a bad contact on the relay or a poor connection on the spark plug cap.

also i forgot to mention check the clutch is engaging correctly it is very easy to assemble it slightly wrong and it will slip like crazy even an oily fingerprint is all that is needed in my experience sounds more likely theres a problem with the drive system rather than the engine typically if theres an engine problem its hard to start it, coughing and spluttering if it even runs at all, but check your carb mixture screws just in case then move onto the drive system.

i had overlooked that and will be checking it, it was clicking on and off fine but i will certainly heed your advice and give it a good going over cheers buddy

i had this once when i was a youth batting about on a Yamaha aerox 50cc turned out to be the reed valves where dead well half missing infact replaced those and off it went again buzzing around no problem, also check your carb screws more specifically the mixture screws might need setting right, perhaps a carb strip and clean and then set the mixture screws.

hey folks, basically i brought a Honda cbf125 2012 plate back in august 2019 and had no issues what so ever until now, basically the bike is taking ages to start up in the morning from cold, once the bike was up to running temp i could switch it off and then back on and press the starter and it would instantly spring into life and run perfectly with in half a second. Well from further investigations with a fag in one hand and a multi meter in the other the coil is reading 14.79ohm across one terminal and the inside of the spark plug cap, across the two coil terminals its around 9.95ohms so now im not so sure the coils to blame but here is the dodgy bit i took the spark plug out and rested it on the cylinder barrel and pressed the starter no spark so i thought ahaa bad coil but i noticed when i released the starter switch it began sparking this continued until i put the plug back in started it up after 4 or 5 blasts on the old starter switch and ran it for a few mins then took the plug back out and retested, it was sparking fine upon pressing the start switch so now i dont no what to think bad coil, dodgy cdi, faulty crank sensor i dont want to be unnecessarily replacing bits if there fine i did test the out put from the magneto and it was showing a nice clean voltage so i dont think thats the issue, the bikes been serviced every 6 months new oil, new plug and i never noticed this before when the bike came with an old battered looking Bosch plug, im now using an ngk iridium plug and the battery is only 6 months old and has been load tested and passes with flying colors so im after a bit of advice really if any one has any experience with this particular problem with this bike or any other bikes all and any advice is greatly appreciated thank you in advance

@Westbeef hi, just wondered if i could be cheeky and ask for the section on the ignition coil section more specifically the resistances i need to check my coil as i suspect its on the blink and need the resistances it should be, cheers buddy