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 on: March 22, 2019, 09:08:09 AM 
Started by Lassen88 - Last post by 1st.turbogv650
Could also be an o2 sensor fault or iac valve

 on: March 22, 2019, 08:59:29 AM 
Started by Lassen88 - Last post by Lassen88
Thanks for the answer,

Ahh is it :O ,

I suspect low pressure in fuel,, how can i check that? ,

Thank you

 on: March 22, 2019, 05:45:30 AM 
Started by blekfleg - Last post by umop-ǝpisdn
This is a starter spray:

A vacuum leak is any air that is introduced AFTER your throttle 'butterfly'. Vacuum leaks occur along the inlet tract, especially where rubber joins with metal, or where vacuum hoses join to a sensor.

If you look at your throttle bodies, there are rubber manifolds that are holding the throttle bodies to the engine. If these get old and crack, or if you get any coolant or brake fluid on them, then they can harden and crack.

Also, there are numerous thin, rubber vacuum hoses that run from the inlet to the idle speed controller and MAP sensor. If these have been pinched, or have cracked, that is also going to be a vacuum leak.

 on: March 22, 2019, 05:34:50 AM 
Started by blekfleg - Last post by xuraax
Some questions please.

What is a starter spray?

Where, on  a GT250, does one look for vacuum leaks?

As I see it vacuum can leak only from the connection of the air filter box to the 2 carburettors. That place is quite inaccessible and seems difficult to spray anything into it.

Then there is the actual connection between the carburettors themselves and the cylinders which seems even less accesible.

Anywhere else?

 on: March 22, 2019, 12:57:47 AM 
Started by Lassen88 - Last post by umop-ǝpisdn
It's built into the pump.

 on: March 22, 2019, 12:47:11 AM 
Started by RobertoAU - Last post by luson
Yes, Make sure the tank is empty by using a manual syphon pump and a hose. Any auto parts sell them. Also disconnect the battery terminal to be safe. 2 mounting bolt hold the tank on the rear of the tank. slighly lift the rear of the fuel tank to get access and disconnect the electrical cables of the fuel pump/Sending unit. Disconnect the fuel line. Slide the tank to the rear toward the seat. Do not turned upside down because it may still have fuel. Just stand the tank up leaning on a wall. I think it about 8 mounting screws. Watch the way it came out and then mounted the opposite direction. The lever it should go toward the back were the 2 tank mounting bolts are. Remember to place a rag on the floor for any fuel spill. DO NOT DO THIS INSIDE OF A SHOP/HOUSE. Main concern is disconnecting the battery and that the tank is empty.

 on: March 22, 2019, 12:31:49 AM 
Started by N8r8r - Last post by luson

 on: March 21, 2019, 10:30:16 PM 
Started by Lassen88 - Last post by Lassen88
Hello Guys,,

im am sorting out some issues with my GT 650EFI 2009,,,,
Anyone now where is the pressure regulator is?

Dont find the regulator ore the fuel rail in the Exlposive drawings in the manual

And is there a way to meassure the pressure?,,

I suspect to low pressure , because my bike runing great in the first 10 seconds and then its start tu cut/misfiring/run like crap in the engine,, and it happes gradually over those 10 seconds,,,

Thank you

 on: March 21, 2019, 02:21:03 PM 
Started by Lassen88 - Last post by Lassen88
Thanks for the Answer :) ,

Sounds like a great idea :) ,,, But how can i check the sensor , and the values? ,

Thank you

 on: March 21, 2019, 02:09:01 PM 
Started by Lassen88 - Last post by 2turbos
Try testing the throttle position sensor for continuity, connections and correct values next.

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