Author Topic: Getting ready for first start  (Read 1005 times)

0 Members and 1 Guest are viewing this topic.

Offline Hutch

  • Enthusiast
  • **
  • Posts: 101
  • 1982 CB650SC
Getting ready for first start
« on: October 07, 2018, 02:59:23 PM »
All I have left is to bleed the front brakes, then first start.  I swapped tanks from stock, the fuel line has a very slight up hill from the petcock to the carbs.  I hoping this isn't any issuer since its only about a 4" run from the petcock to the carbs (see pic below).

Here's my first start procedure pieced together from several posts on this and other forums.

1   Test battery voltage (should see at least 12.4V on a 12V battery).
2   Disconnect plugs
3   Give each cylinder a squirt of oil or penetrant
4   With engine off, kick engine over 30-40 times (3 second increments) to get oil flowing
5   Pull tappet covers  1 and 4 to verify oil flow
6   Start while holding plugs against the engine case to verify spark
7   Temporarily replace plugs
8   Open petcock
9   With engine off, kick engine over 5-10 times (5 second increments)
10   Check flow of fuel to the carbs by opening float bowl drain screws
11   Remove all spark plugs and verify each one is wet with fuel
12   Add fuel through spark plug holes 1 and 4 optional
13   Replace plugs when finished
14   Turn ignition to run
15   Choke full, closed
16   Twist throttle 5 times
17   Hold starter for a few seconds
18   Repeat as needed
19   Idle until the choke is no longer needed (about 30 seconds)
20   TEST RIDE!!!
« Last Edit: October 07, 2018, 03:08:05 PM by Hutch »

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 21,070
  • I refuse...
Re: Getting ready for first start
« Reply #1 on: October 07, 2018, 05:37:39 PM »
Shouldn't need to add fuel to the cylinders. Or oil for that matter. Leave the kill switch in OFF position, kick it over several times. Remove a tappet cover or two to confirm oil circulation. Switch to RUN, and fire it up!
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Jerry Rxman Griffin aka MuthaF'er

  • This MuthaF'er is getting to be a
  • Really Old Timer ...
  • *******
  • Posts: 14,927
  • Bought her new 4/75
Re: Getting ready for first start
« Reply #2 on: October 08, 2018, 07:58:27 AM »
+1

WAAAAAYYYYY overthinking. I've found several times that it may not circulate oil until it fires up. Assuming you've pre-lubed the crank and cam it should be fine if it fires for few seconds before it oils. 
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)