Quote:
Originally Posted by garth285
Hey bud, I was just looking at Cam's and I noticed you have not mentioned them.
I did some part number checking and the ninja 250 and 300 have the same intake cam but the exhaust are different part numbers.
Care to share any measurements?
|
CAMSHAFTS:
Camshafts are the same between the two. The part numbers are only to differentiate model type, I suppose. Here's what I pulled off of Cheapcyleparts.com's Fiche:
49118CAMSHAFT-COMP,INTAKE
49118-0742
49118ACAMSHAFT-COMP,EXHAUST
49118-0743
49118CAMSHAFT-COMP,INTAKE
49118-0098 49118-0742
49118ACAMSHAFT-COMP,EXHAUST
49118-0099
Intake camshaft has an extra millimeter of lift vs the exhaust camshaft.
Intake cam measuring ~33.90mm and exhaust came measuring ~32.90mm diameter-wise.
Valve timing per FSM:
250/300 intake
open: 36* BTDC
close: 56* ABDC
duration: 272*
250/300 exhaust
open: 61* BBDC
close: 31* ATDC
duration 272*
