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joe2929 · 06-27-2009, 01:00 PM

Hope someone can help. I have 750 that has not been started for 4 years and only has 5000 original miles.( pick it up dirt cheap).
My question is what should I do to prep the cylinders before I hand crank it.Put oil in the cylinder? If so how much?
I have repair knowlege but I do not have experience in this area.

Joe

newagetwotone · 06-27-2009, 01:52 PM

Give it some milk, it will grow up big and strong.

Kenneth_Moore · 06-27-2009, 01:59 PM

Some light oil in the cylinders is a good idea. About 10cc's per cylinder ought to do it. I'd use Marvel Mystery Oil, it'd do a good job of getting around the rings.

Presumably you'll change the sump/tank oil before starting, and drain and replace the fuel.

MOKE1K · 06-27-2009, 02:18 PM

Then get a complete rebuild kit for the carbs. That wont be cheap.

seruzawa · 06-27-2009, 03:16 PM

Do as Ken sez and then hand crank it a bunch. Make sure you drain the fuel tank completely and fill completely with fresh gas. That will dilute the residue of paint thinner that the old gasoline turned into while it was sitting.

Better pull the drain screws out of the carbs and make sure they are drained. You can spray some carb cleaner into the bowls through the drain plugs. Put the screws back in and turn the petc0ck to 'prime' to fill the float bowls. Then drain them gain, looking for particles of crap. If there's still crap do the spray/fill/drain thing again.

Replace the crankcase oil/filter too.

Battery charged? The battery is almost sure to be sulphated and junk and you will almost certainly need a new one. Try starting it now. Do not rev it at all until the oil pressure light has gone off for a few seconds. You just might be ready to roll. If it runs like crap then you probably need to pull the carbs and disassemble and clean them.

Letting an engine sit is one of the worst things you can do to it.

joe2929 · 06-27-2009, 04:45 PM

Thanks for the all the advice and I will be sure to follow even the milk LOL

pplassm · 06-28-2009, 08:44 AM

Good advice here. I rescue a couple of bikes a year.

Expect to have to rebuild the carbs. There's a guy on Ebay who will do it a reasonable cost, exchanging your carbs for short turn around.

06-27-2009, 01:00 PM	#1
joe2929 Registered Member Join Date: Jun 2009 Posts: 2	1992 Katana 750 Hope someone can help. I have 750 that has not been started for 4 years and only has 5000 original miles.( pick it up dirt cheap). My question is what should I do to prep the cylinders before I hand crank it.Put oil in the cylinder? If so how much? I have repair knowlege but I do not have experience in this area. Joe

06-27-2009, 01:59 PM	#3
Kenneth_Moore Registered Member Join Date: Jun 2007 Location: VIsiting the GIft Shop in the Pit of DIspair Posts: 7,118	Some light oil in the cylinders is a good idea. About 10cc's per cylinder ought to do it. I'd use Marvel Mystery Oil, it'd do a good job of getting around the rings. Presumably you'll change the sump/tank oil before starting, and drain and replace the fuel. __________________ www.kennethmoore.org

06-27-2009, 02:18 PM	#4
MOKE1K Registered Member Join Date: Jul 2008 Location: Kalapana, Big Island Posts: 3,956	Then get a complete rebuild kit for the carbs. That wont be cheap. __________________ "YOU CAN'T BOLT ON SKILL" "The only thing limiting your bike, is you" We survived Bush you'll survive Obama! "the most fundamental fact about the ideas of the political left is that they do not work. therefore we should not be surprised to find the left concentrated in institutions where ideas do not have to work in order to survive." --thomas sowell

06-27-2009, 03:16 PM	#5
seruzawa Robby Join Date: Nov 2001 Location: 8501 ft. Posts: 16,803	Do as Ken sez and then hand crank it a bunch. Make sure you drain the fuel tank completely and fill completely with fresh gas. That will dilute the residue of paint thinner that the old gasoline turned into while it was sitting. Better pull the drain screws out of the carbs and make sure they are drained. You can spray some carb cleaner into the bowls through the drain plugs. Put the screws back in and turn the petc0ck to 'prime' to fill the float bowls. Then drain them gain, looking for particles of crap. If there's still crap do the spray/fill/drain thing again. Replace the crankcase oil/filter too. Battery charged? The battery is almost sure to be sulphated and junk and you will almost certainly need a new one. Try starting it now. Do not rev it at all until the oil pressure light has gone off for a few seconds. You just might be ready to roll. If it runs like crap then you probably need to pull the carbs and disassemble and clean them. Letting an engine sit is one of the worst things you can do to it. __________________ I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I watched c-beams glitter in the dark near the Tanhauser Gate. All those moments will be lost in time, like tears in the rain.

06-28-2009, 08:44 AM	#7
pplassm Founding Member Join Date: Nov 2001 Posts: 3,875	Good advice here. I rescue a couple of bikes a year. Expect to have to rebuild the carbs. There's a guy on Ebay who will do it a reasonable cost, exchanging your carbs for short turn around. __________________ Mongo just pawn in game of life.

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06-27-2009, 01:52 PM	#2
newagetwotone Registered Member Join Date: Jun 2007 Posts: 1,302	Give it some milk, it will grow up big and strong.

06-27-2009, 04:45 PM	#6
joe2929 Registered Member Join Date: Jun 2009 Posts: 2	Thanks for the all the advice and I will be sure to follow even the milk LOL