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Found 4 results

  1. Hello. My CRF450R 2011 have leaking (oil with coolant) from water pump drainage hole: I install new mechanical seal (7), oil seal (16) and new bearing (15): Filled new coolant and run my bike, all was fine, but after 15 minutes I got heavy coolant leaking: Disassembled again and noticed that "head" of mechanical seal is disconnected: What's can be wrong? Looks like problem with slight tightening (torque) (12 N/m) of impeller (part #6)? Sorry for my bad English.
  2. Mastermerc

    Pump rotor dissasemble

    Hi Giys, My bike is leaking by the weep hole. I removed the pump cover but cant remove the pump rotor, as the whole bike wants to move. Is there a trick to get it out without removing the whole clutch cover? Bike is a 08 wrf450
  3. If you're looking for a compact 12v tire pump, here's a good one. I wrote up a full review @ Here's a short clip of the little guy in action...
  4. I have another post titled SXF dies when throttle given. I think ive narrowed it down to the fuel pressure regulator but need someone who is familiar with the way the regulator operates to clarify some things. Pulled my 250 sxf regulator out. Added "slight air pressure" to o-ring port and get air coming out the top. Added about 65psi air to the side pipe and no air flows and or comes out any port. Shouldn't I be able to take a punch, screw driver or similar tool and push the plunger inside from the o-ring side and compress the internal spring??? I can't get anything inside to move, no matter what end I push from with a tool. It's my understanding the fuel pressure enters the o-ring port, builds pressure, collapses diaphragm spring and allows full to exit the side pipe. If more than 50psi builds, it bleeds out the top and excess fuel dumps back into the tank. Is this the correct process?