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Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 11749
Experience:  25+ yrs. experience
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I have a 2008 RMZ450 it will not start buy kicking it but it

Customer Question

i have a 2008 RMZ450 it will not start buy kicking it but it will bump start. Cleaned the fuel pump filter. valves are to spec. timing is on. any ideas?
Submitted: 1 year ago.
Category: Motorcycle
Expert:  Louie replied 1 year ago.

Hi and welcome to JustAnswer,

Thank you for the question and your patience. Should you still need assistance for information purposes only...

Initially, proposed preliminary tries (if have not been done):

  • • check for spark at the sparkplug tip when kick starting - if weak or missing, check the magneto and/or the condenser;
  • • check that the fuel pump delivers ~42PSI of fuel pressure after a couple of kicks;
  • • consider a compression test or better yet, a leak down test.


Please post back results / observations of the above once tried.

Customer: replied 1 year ago.
Thanks. I just had the top end redone .To check the fuel pump pressure what gauge do I need? Where can I get one?
Expert:  Louie replied 1 year ago.

Please click HERE. (This is for the 09 version but would serve similarly for the 08)

Customer: replied 1 year ago.
I am going to test the fuel pump on Tuesday and communicate with you after that.
Expert:  Louie replied 1 year ago.

Appreciate the post back and an update when able.