Neilmca 0 Posted May 26, 2020 Evening all. I’ve a 2017 Honda foreman 500 es . Bike would start fine and run for while then start to misfire and die . At first we thought was fuel issue removed fuel tank which was full of crap , cleaned tank , replaced pump , filters and eventually injector . Went fine for around two months then replaced filters and cleaned all fuel lines again and fitted a new battery and went fine for couple months and started playing up again. We thought the injector was at fault and had made no diffrence . We found if you stopped it for 5 mins it would go ok till you make it Labour and it start to misfire . We think it’s a fuel issue but I’m not convinced any more. Fuel pump pressure is 65 psi aswell . Any idea would be grately recived thanks neil Share this post Link to post Share on other sites
retro 4,072 Posted May 26, 2020 New NGK spark plug in it? Share this post Link to post Share on other sites
Neilmca 0 Posted May 27, 2020 Yeah tried that aswell thanks Share this post Link to post Share on other sites
shadetree 5,969 Posted May 27, 2020 my first thought is crap still in tank, getting to fuel injector. 1 Share this post Link to post Share on other sites
Neilmca 0 Posted May 28, 2020 Yeah I totally agree .and that’s was my thought exactly.tank was taken off pressure washed dried off and refitted all fuel lines flushed out new pump and filters . That was the first time I tried a new injector on Friday or Monday but no diffrence this time fuel pump pressures with 45 psi or 65 psi I can’t just remember Share this post Link to post Share on other sites
retro 4,072 Posted May 29, 2020 Does it have a OEM Honda fuel pump, filter and injector in it? Are there any parts on the bike that are not genuine Honda? Reason I ask is cause after-market from china do not work on Honda ATVs, or anything else for that matter. 1 Share this post Link to post Share on other sites