98 Suzuki ft 150 delay in throttle response

[pipefitter83]

I have a dt 150 that is having an issue with throttle response the. Whole fuel system has been gone through also tested the tps which stays between 5.2 and 2 kilo oms any suggestion on thoughts of what could be causing this would be greatly appreciated

[Solarman]

Did you check the clear discs (2 in each pump - check valves) in the fuel pumps? If they are cracked, or not intact they can cause this (often not looked at). If they are breaking up, those pieces often interfere with fuel flow.

Does this motor have the efi system, or carbs? If efi, did you check pressure at the fuel rail?

Have you looked at plugs, or tested compression?

Post back when able. Good luck.

[pipefitter83]

Plus are new compression is between 125 and 130 on each cylinder and fuel pressure is 36.7 at the fuel rail will check the the disc in fuel pump tom

[Solarman]

Have you had any problems with fuel, trash in fuel, fuel lines breaking down (because of ethanol fuel)? Have you checked for trash in any filters, and was there any in any of them? Which ones did you check, clean, if trash, which ones?

Post back when able and let us know. Thanks.