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rebuild - startup tips?

Jlovvorn
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Posts: 477
Joined: Tue Dec 27, 2011 11:10 am
Location: Washington DC

rebuild - startup tips?

Post by Jlovvorn » Sun Dec 02, 2012 11:34 am

Top end is done and back in the bike. Any tips on startup?

Current plan is to fill the oil and kick it for a while to get oil moving.

Then fire it for a couple mins, stop as change the oil and then start again and follow break in procedure.

Have put lube on top end cam and valves and cam chain.

Timing is set and valves at spec.

Any last words?

CJ
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Posts: 27
Joined: Tue Jul 17, 2012 12:50 pm
Location: Ottawa, Ontario

rebuild - startup tips?

Post by CJ » Sun Dec 02, 2012 12:16 pm

Jlovvorn

Once it is ready (oil in, etc.) I like to pull the plugs, squirt a little oil in each cylinder, remove the right side cover, put an electric drill (I use an air drill) on the alternator/stator center bolt and 'run' it for a bit to be sure the oil pump is in fact pumping oil, and that there are no apparent leaks.

You can get the oil circulating doing this, and it is a good, relatively quick first test, with very little strain on the motor.

A little prayer doesn't hurt too!

CJ

'66 CB77
'66 CP77

mike in idaho
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Joined: Sun Jan 29, 2012 9:18 pm
Location: orofino, idaho

Post by mike in idaho » Sun Dec 02, 2012 1:59 pm

Once you get it started, crack one of the outboard head nuts loose ( the stud with the 0-ring around it at the head gasket) for a moment to see if oil is being pumped up around the stud.
'65 YG1
'65 CB160
'66 CL160
'66 CL77
'78 XS650
'79 GL1000
'69 T100R
'68 TR6
'69 T120
'72 750 Commando
my company car is a Kenworth

CliffC
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Joined: Sat Jan 13, 2007 3:52 pm
Location: Roseburg, Oregon

Post by CliffC » Sun Dec 02, 2012 4:52 pm

I wouldn't loosen any of the nuts if you already torqued them. Just remove one or more of the rocker covers and check for oil. The use of an electric drill or something similar is a good idea, never thought of that before and I would probably remove the spark plugs. Good luck, Cliff

mike in idaho
honda305.com Member
Posts: 411
Joined: Sun Jan 29, 2012 9:18 pm
Location: orofino, idaho

Post by mike in idaho » Sun Dec 02, 2012 5:14 pm

That's how we did it, back then during My Honda shop days, that was the factory procedure for checking for oil circulation. Naturally you re-torqued it after you were finished.
'65 YG1
'65 CB160
'66 CL160
'66 CL77
'78 XS650
'79 GL1000
'69 T100R
'68 TR6
'69 T120
'72 750 Commando
my company car is a Kenworth

Jlovvorn
honda305.com Member
Posts: 477
Joined: Tue Dec 27, 2011 11:10 am
Location: Washington DC

Post by Jlovvorn » Sun Dec 02, 2012 7:04 pm

Did all the turning over with a wrench I could stand.

Then fired it up.

Runs great BUT I am leaking oil out of the head gasket right under the right side exhaust.

More than a few drops, but not a gusher.

Left about a dine size pool on my starter after about four mins of running.

Someone please tell me this is ok and will go away.

Maybe I need to drop the engine and tighten down the bolts?

I used a T wrench and put them right at 15. 16 really.

Goodysnap
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Posts: 456
Joined: Mon Oct 06, 2008 7:25 pm
Location: Lansing , Michigan

Post by Goodysnap » Sun Dec 02, 2012 8:30 pm

I would definately retorque after a run cycle. I had a small leak as well after a snug with a wrench all was good. If I'm not mistaken LM recommended 20ftlbs.
64' CB77
65' CB160

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