Hi anyone who can help looking for advice about running bike as it was running fantastic until the other day when going over the 6000 rpm mark it did not take off as normal and seems to hold back any one have any ideas ??

Your going to have to be a bit more specific,or take your foot off the brake

fuel or ignition

Lol not sure if it has power valves or somethimg like that that used to kick in and now it does not have a manuel but don't know what I'm looking to fix

Lol not sure if it has power valves or somethimg like that that used to kick in and now it does not have a manuel but don't know what I'm looking to fix

I think its basically the same motor as on the FJ, FZ, and YX models. Thing to do is start looking at the simplest and cheapest possible faults - plugs/air filter/ filter in the fuel tank, is it a vac operated fuel tap - if so check the carb rubbers for leaks or poor fit. Cant remeber if theres a fuel filter in the fuel tap - check that too. Fuel tank air vent clear/? Low compression. Valve clearnaces. Ethanol in the fuel? Clutch slipping

Easy things first before you pull the carbs to bits

Good luck

Thanks for your help will give it a go

Check the condition and colour of your spark plugs, my XJ600 used to be very picky about its fueling, a good mixture should be a dark chocolatey brown, also check the rubber gators that go between the carbs and engine head (chances are these are perished and they are more rare than rocking horse sh*t with hens teeth in it)

also, make sure your exhaust is in good condition, it may sound stupid but it makes a hell of a difference to these little bikes when they have the right backpressure

sounds to me like it might a problem with your powerband, i would reccoment replacing it with this one - http://kalecoauto.com/index.php?main_page=product_info&products_id=36

Regards,

sounds to me like it might a problem with your powerband, i would reccoment replacing it with this one - http://kalecoauto.com/index.php?main_page=product_info&products_id=36

Regards,

sounds to me like it might a problem with your powerband, i would reccoment replacing it with this one - http://kalecoauto.com/index.php?main_page=product_info&products_id=36

Regards,

That site never gets old! XD,

seen an oppertunity, had to take it!