rebuild on dr 250 how do you set the timing?
Started by
smokeing77
, Sep 18 2007 07:54 PM
3 replies to this topic
Posted 18 September 2007 - 07:54 PM
I bought a 1990 dr 250 and the top end went out of it and Im tring to rebuild it myself, but I m not sure how to time everything so it will work can any one help me.
Posted 19 September 2007 - 08:28 PM
you need to consult the manual for that. In general, you need to put the piston at TDC and the cam lobes need to face a certain way (this is where you need a manual) usually down so they won't place any pressure on the rocker arms, opening the valves...valves need to be closed. Cam chain and gear can then be fitted.
you'll probably need to visit g-man's site www dot suzukidr350 dot com
you'll probably need to visit g-man's site www dot suzukidr350 dot com
Posted 20 September 2007 - 01:12 PM
Helmet_Hair said:
you need to consult the manual for that. In general, you need to put the piston at TDC and the cam lobes need to face a certain way (this is where you need a manual) usually down so they won't place any pressure on the rocker arms, opening the valves...valves need to be closed. Cam chain and gear can then be fitted.
you'll probably need to visit g-man's site www dot suzukidr350 dot com
you'll probably need to visit g-man's site www dot suzukidr350 dot com
Yep, TDC "T" mark on flywheel lined up with left half center case pointer (it's at about the 10 o'clock position on the case near the flywheel. Cam lobes down and the two marks at the end of the cam on level with the cam bearing surface of the head. Cam w/cam sprocket pin at two o'clock.
