09 Gt650R help

it sounds like it could do with a quick check on the carb jets to make sure all is correct , and while its apart,  why not give it a long ultrasonic clean job as it will really thank you.

Also pull out your plugs , check they are the correct ones and if you want, you can upload pics of the plugs so we see what your mixture is like.

Have a check on your fuel tap  and fuel pump too, sometimes if they act funny, they can hold back a lot , so the carb feels starved off a bit.

Let us know how the fuel system investigations go , before we look deeper elsewhere on the bike.

You got this!

If the tank has a vacuum petcock under and contains fuel.   The tank that’s on the table should not be pissing out fuel,  That’s bad.   It would cause hydrolocking if the carb floats fail and you have fuel inside the pistons and a very stinky “water-like” oil.   I would not ride the bike until such fuel parts get replaced one by one.

Very good question you asked!

I hope you remember where all the pipes went because i forgot to make a tutorial on how to do fuel diagrams for 650 , i must really get on it! Sorry.

The carbs would still could do with a nice clean up inside and outside, they look better than the rusty carbs found on other bikes left in gardens to rot , so you will have an easier time blasting it clean.

If in doubt, check the jet sizes on it too.    Also it is a shout that you could always give it fresh valve seats for the floats as they control how much fuel comes in before the floats shut em off ,  and fresh gaskets lessen the risks of fuel leaks , if the carb hasnt been touched for a while the gaskets may have been caked up a little bit.
(See the hyoriders shop)

The bike has a Vacuum Mikuni Pump near the yellow bar where fuel tank sits on.  It is not electric , but it rarely fails unless again , if its been a while you could always replace it.    If need be, i can send over another fuel pump from our running donor bike.

Since you live in AUS i understand if shipping times between UK and AUS are not something you want to wait for,  it is possible i may use faster logistics , but send me an email for any sales enquiries.

The spark plug looks to be the wrong type ,   i would get CR8E new ones from any local store that sells bike or auto parts.   Try them first.   Don’t bother with DENSO or the crappy Iridium IX plugs from NGK.       The 650 will be happy either with its stock CR8E or  LASER NGK plugs (See hyoriders shop)

Try CR8E first before upgrading the plugs.

The ignition coils that sit on the frame , need the area to be free from rust as they use the frame for “ground signal”  , the same way spark plugs use the engine + frame + battery negative as ground signal.

Sand off the rust till its shiny, then apply a thin layer of ACF-50   (No WD40 please, its a fire hazard!)  = ACF50 is every biker’s must have and it will not go on fire. In fact,  use it inside every single wiring harness connector on your bike  (that way wiring harness plugs in your bike won’t oxidize too much or rust away)

Baz wrote:

Just got the spark plugs you said to get, doing a carby soak and yeah I rember all the fuel lines xD would you know what that random spot of oil is from on the throttle pivot point ? The last pic

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Blow-Bygasses that turned to mist , then oil paste  (like you would see inside the airbox) but in your picture i would double check the intake rubber pipes are okay as it may have escaped through as you can see also.

Baz wrote:

So after all that .. the previous owner had installed the fuel filter upside down -_-

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Happens all too often up here too!  –  Well done for spotting but the previous owner has probably lost my respect for such a simple thing to get wrong. i mean fuel filters usually have direction arrows,  if they didn’t the base where mesh canister inside sits is the OUT flow.