What is the compression supposed to be on 03 Yamaha Raptor 660r

SOURCE: how to take a yamaha raptor seat cover off

try youtube.com they have about everything

SOURCE: 02 YMF660 Yamaha Raptor won't rev

dude i have a 02 rapter 660 the reverse light was on and it wasent reving i took the battery out and took the ecu out and i found some disconnected wires fixed them and every thing was fine. if you still have a probley with it check the ecu...

SOURCE: need a owners manual for a 2003 yamaha 660r raptor

Have a fossick around on this site and see if anything tickles your fancy.

http://www.carlsalter.com/motorcycle-manuals.asp ,

If not then Google for what you require and you will find plenty of them for sale as well as the odd freebie.

Here is another site that may have one:
http://www.yamaha-motor.com/sport/myyamaha/prompt/L3Nwb3J0L3NlcnZpY2Uvdmlld21hbnVhbHMvdmlld21hbnVhbHMuYXNweD9scz1zcG9ydA==/Owners%20Manual/starthere.aspx

Murtaza Akberali Versi

• 767 Answers
• Posted on Mar 02, 2010

SOURCE: I have a 03 Yamaha 660 raptor one of the carbs

Did you reset (adjust)the float inthe float chamber to tht carburator which is leaking ?
You will probabley have to adjust tht float to stop from overflowing in other words we call it flooding.
Check the float pin of wear at the tip.
Hope this helps!

SOURCE: 2001 raptor 660r with k&n

will need to fit larger pilot and main jet
size will depend where you are as colder climate will need to be richer than warm climate, normally 1 size up from std on pilot and 2 on main