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May 24th, 2014, 09:26 AM
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#1 |
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CPT Falcon
Name: J.Emmett Turner
Location: Newnan, GA
Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.
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Precautions to take when starting an engine that has been sitting for years?
When I finally get these motors and frames together and am ready to start them, what precautions should I take? I know that I should change the oil, but I imagine that there would be nearly no residual oil in the top end by now and it would likely need to be lubed manually.
Do I just take the valve cover off and lubricate as per the service manual's valve adjustment instructions? IIRC, it suggested some kind of "assembly lube" that I think serves that purpose. Alternatively, can I just dump some oil all in the top end or should I just change the oil normally and hope it gets up there before damage is done? |
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May 24th, 2014, 10:07 AM
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#2 |
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Ninjette Jockey
Name: Tim
Location: Stockton, Ca
Join Date: Oct 2010 Motorcycle(s): Ninja 250R, Harley Davidson Heritage Softail, 2 Honda Monkeys, Polini & GRC mini GP Posts: A lot.
Blog Entries: 3
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It good to rotate the engine manually, just to verify that all turns freely. One problem that many have run into is that multi-plate motorcycle clutches can get stuck from sitting. It's as if they the friction plates and driven plates are glued together. Folks have various techniques for freeing a stuck clutch, I prefer disassembly.
For pre-oiling you can spin the engine with the starter with the spark plugs out. This will deliver oil throughout the engine. You should see the oil pressure light go out after a few seconds of this.
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 For what shall it profit a man, if he shall gain the whole world, and lose his own soul?. 
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1 out of 1 members found this post helpful. |
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May 24th, 2014, 10:20 AM
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#3 | |
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Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
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Quote:
If you rotate the engine enough times, by hand or with the starter (don't crank longer than 15 seconds each time and let the motor cool down), there is no need to dissemble the top. As you know, the engine should be hand rotated with a tool inserted through the alternator cover access plug and always in the normal direction of rotation. I would also dissemble, clean and lubricate the CCT and add some drops of oil to the top of the pistons through the spark plugs hole. A flat screwdriver inserted through the oil-filler port can separate the clutch discs, if you are careful and do it all around one rotation of the clutch.
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Motofool  .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
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May 24th, 2014, 11:15 AM
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#4 |
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ninjette.org guru
Name: Kevin
Location: Madison
Join Date: Apr 2013 Motorcycle(s): 2004 Ninja 250 Posts: 465
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I found that just use will separate the clutch disks. Mine were sticking when I purchased my bike. And I would just push the bike down my driveway before engaging first. After some time on it, it no longer sticks.
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May 24th, 2014, 08:21 PM
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#5 | |
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Threadkiller
Name: Mick
Location: Monongahela, Pa.
Join Date: Apr 2014 Motorcycle(s): Yellow '04 stocker, '89 FJ1200, '87 Ducati Paso, '71 Yamaha XS1b, '99 KLR650, '81 FXE 80, '97 KTM 200EXC , etc Posts: 430
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Quote:
 OP, A little squirt of oil in the cylinder and fresh oil and filter in the sump and you're good to go. |
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May 24th, 2014, 08:32 PM
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#6 | |
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CPT Falcon
Name: J.Emmett Turner
Location: Newnan, GA
Join Date: Apr 2009 Motorcycle(s): '08 CP Blue EX250J, '97 unpainted EX250F, 2nd '97 unpainted EX250F (no engine), '07 black EX250F Posts: A lot.
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May 25th, 2014, 04:32 AM
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#7 | |
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Threadkiller
Name: Mick
Location: Monongahela, Pa.
Join Date: Apr 2014 Motorcycle(s): Yellow '04 stocker, '89 FJ1200, '87 Ducati Paso, '71 Yamaha XS1b, '99 KLR650, '81 FXE 80, '97 KTM 200EXC , etc Posts: 430
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May 25th, 2014, 04:47 PM
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#8 |
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ninjette.org certified postwhore
Name: Paul
Location: UK
Join Date: Apr 2014 Motorcycle(s): Ninja 250, Yamaha RS200 (classic) Posts: A lot.
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Gunked carbs are usually the big problem with long standing engines. Presumably you have stripped them and cleaned the idle passages. the other worry is if it was last stopped cold is water (just a trickle from combustion) in a cylinder rusting up the rings and making a circular bore scar. If it turned over without being stuck that is a good sign.
Agree with the plugs out and spin suggestion |
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