Gets beat

J

jbesch

~SPONSOR~

Apr 5, 2008

16

0

• Apr 5, 2008

• #1

I just bought an 04 yz 250 that is suppose to be built better the stock the cylinder was ported and pollished, head shaved, bigger carb and a few other thing. A buddy of mine has a bone stock CR 250 and he smokes me it not even close, feels like im hardly moving. Can any one give me some help or advise on what I need to do or look for to get it to preform better.

 

O

outlawgrafyx

Member

Feb 9, 2008

56

0

• Apr 6, 2008

• #2

buy a honda

 

M

Moparman1539

Member

Sep 9, 2006

804

0

• Apr 6, 2008

• #3

Switch bikes for a run. Maybe its rider skill..

Is it jetted rite? Whats kind of gas you running? oil? Ratio?

 

R

rpm12505

~SPONSOR~

Sep 25, 2005

190

0

• Apr 6, 2008

• #4

Listen to moparman. Aside from that does your engine guy know what he is doing? It's far easier to screw-up the performance of a bike than to make it better.

 

whenfoxforks-ruled

Old MX Racer

~SPONSOR~

Oct 19, 2006

8,129

2

Merrillville,Indiana

• Apr 6, 2008

• #5

rpm12505 said:

Listen to moparman. Aside from that does your engine guy know what he is doing? It's far easier to screw-up the performance of a bike than to make it better.

Click to expand...

Swap bikes first, then find your engine guy. You may be buying a stock cylinder and head. Could be gearing. Never race a honda, find a guy with a suzuki?

 

C

CarnageZ28

Member

Mar 25, 2008

109

0

• Apr 6, 2008

• #6

Jetting ... If its ported, and no one knows who did it/how its done, you NEED to check the plugs ASAP to check the jetting on it.

 

J

jbesch

~SPONSOR~

Apr 5, 2008

16

0

• Apr 6, 2008

• Thread starter
• #7

I think jetting might be the problem I rode it today and it ran good and it was 15 to 20 degress cooler is there some where that I can look to find out about what size of jets I need to be running at about what temp.

 

S

slodad

Member

Sep 4, 2005

99

0

• Apr 6, 2008

• #8

That should be in the back of the manual in the tuning section.

 

J

jbesch

~SPONSOR~

Apr 5, 2008

16

0

• Apr 7, 2008

• Thread starter
• #9

ya but I dont have the manual

 

D

DLHamblin

Member

May 27, 2005

268

0

• Apr 7, 2008

• #10

jbesch said:

ya but I dont have the manual

Click to expand...

You REALLY need to buy one. It will pay for itself and save you a lot of grief.

 

Rich Rohrich

Moderator / BioHazard

LIFETIME SPONSOR

Jul 27, 1999

22,839

16,904

Chicago

• Apr 7, 2008

• #11

... and that's a good note to close this on.