Hi, thanks for allowing me to join. I have been restoring a Honda 400f 4 for the last 12 months. Got it mostly done now just a few niggles. It misfires mainly at tick over, I have replaced all consumables in the carbs and watched youtube videos. can't see any leaky carb/ head connectors tried the spraying with carb cleaner trick. I have replaced plugs points and plug caps and have double checked all gaps and timings. When restoring I stripped down the engine and replaced both chains and piston rings, one of the pistons was damaged, I replaced just the faulty one, the bores are not scoured and within spec for 33k miles the head had been burned a bit as a result. It starts with one kick sounds ok (when the carbs are full) Not sure where to go with it now. I have not replaced the coils but they read ok Does anybody have any ideas. I lapped the valves and replaced the guide rubbers Any suggestions?
Here is a pic of my bike on day 1, It's a 75 model registered in 77. As you can see the tank is not original, I intend to have it painted, it's sound and I have lined it. The exhaust appears to be original as are the mudguards and chain guard. I have replaced the handlebars as the riding position doesn't suit me ( I'm getting on in years) I don't intend to go concours just clean and reliable.