The old 550 - Wrist Twisters
 
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post #1 of 11 Old 01-24-2014, 11:09 PM Thread Starter
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The old 550

Going to push her from the sunroom to the boiler room and start wrenching. I'm always crazy for bikes this time of year. She wouldn't charge the last time I rode her three years ago. (Leaked oil too) The 919 made me forget and neglect her. I have to do something or sell her to someone that will. Been reading a lot over on SOHC4 forum and have a good idea where to start.
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02' 919
85' cb450 (wife's)
78' cb550 project
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09 trx90 daughter's
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post #2 of 11 Old 01-25-2014, 05:48 AM
Milites Gregarius
 
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I had one in 79...bought in new in Odessa, Texas. It's really neat seeing the picture, it brought back memories. would love to see some more pictures if you have the time to do it. I once drove mine 60 miles in 7 degree f with no windshield, no heated gear on and not nearly enough cloths on....froze my hind end off. Good luck with the restore....take good care of the old girl.
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post #3 of 11 Old 01-26-2014, 12:51 PM Thread Starter
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I'll get some more pics when it comes out in the spring. For now here is a pics of her in her new home for the next few months. Yes my boiler room has a bunch of junk in it. My wife likes stuff.
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02' 919
85' cb450 (wife's)
78' cb550 project
84' z50r son's
09 trx90 daughter's
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post #4 of 11 Old 01-26-2014, 12:59 PM Thread Starter
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I'll get some more pics when it comes out in the spring. For now here is a pics of her in her new home for the next few months. Yes my boiler room has a bunch of junk in it. My wife likes stuff.
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02' 919
85' cb450 (wife's)
78' cb550 project
84' z50r son's
09 trx90 daughter's
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post #5 of 11 Old 01-26-2014, 01:03 PM
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Quote:
Originally Posted by NH919 View Post
I'll get some more pics when it comes out in the spring. For now here is a pics of her in her new home for the next few months. Yes my boiler room has a bunch of junk in it. My wife likes stuff.
Nice I kive the old UJM resto projects! Good luck!

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post #6 of 11 Old 01-26-2014, 04:39 PM Thread Starter
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Thanks Heli. Going to replace the volt reg and rectifier with a solid state unit and a new fuse box as I melted one before I stopped riding it. There are some nice replacements that use new blade type fuses. Then run it and make sure it charges. Then top end rebuild. Not something I've done before on anything other than single cylinders. I'm excited and nervous at the same time.

02' 919
85' cb450 (wife's)
78' cb550 project
84' z50r son's
09 trx90 daughter's
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post #7 of 11 Old 01-26-2014, 06:35 PM
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The 550 looks good from here. Did it run well before you parked it?
Top end rebuild? why? Head gasket or O rings leaking?

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post #8 of 11 Old 01-26-2014, 06:49 PM Thread Starter
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The 550 looks good from here. Did it run well before you parked it?
Top end rebuild? why? Head gasket or O rings leaking?
Seemed like head gasket. What o rings? The ones under the round covers on the head. It also has 24k on it. It ran strong though.

02' 919
85' cb450 (wife's)
78' cb550 project
84' z50r son's
09 trx90 daughter's
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post #9 of 11 Old 01-26-2014, 09:49 PM
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If there is oil weeping on the head level ( a few cooling fins below the outer spark plugs #1 and 4) and your compression looks good, There are O rings on the head gasket level that seal an oil journal on each side that wear out (loose the seal). that will leave oil all over where the jugs meet the head. It's a common issue. If that is the problem, the top end will have to be removed to replace that and the head gasket.
I usually get a Vesurah gasket set, covers almost everything .does not come w ith replacement pucks that seal valve train from headbolts so take them out carefully so you can reuse them (or Honda still sells them).
If that's as far as you need to go , the top end can be removed in-frame, no trouble,but if you need to repaint the frame and engine, removing the engine is no biggie either.
If you have multible leaks , the Veserah kit comes with side case cover gaskets but no kick-start or shifting rod seals.it's probably time for those too if you haven't changed them.The kit does come with valve seals ,if compression check was off, re seating the valves would be a good thing to do while your there anyways.
If you plan on splitting the case for some reason the crankshaft gaskets are n a for the 550 but the 650s used the same ones and was still available last summer.
If you know you have had a bore job on this engine and you have good compression treat those rings like gold, stock size is still avail. any oversized rings are not .
Sohc4 , down load a manual and read before putting a wrench to the motor...(also been on that site for years) good, knowledgeable,helpful folk there.
If you haven't taken down an engine yet , it's not hard, just have to pay attention to the manual. Will you be posting the repair here and there?

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post #10 of 11 Old 01-26-2014, 10:33 PM Thread Starter
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Those o rings sound like exactly what it is. I don't think the engine has ever been bored and don't plan too if I can avoid it. Would love to replace the gasket in frame if I can. Thanks for the response and info. I do have a clymers manual but it sucks compare to the Honda manuals I have. Going to print out the manual from the links on sohc4. I like to work from paper. I will be posting here and there and the final results are a few months off. Again thanks for the response I appreciate it.

02' 919
85' cb450 (wife's)
78' cb550 project
84' z50r son's
09 trx90 daughter's
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post #11 of 11 Old 01-26-2014, 10:35 PM Thread Starter
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My 78 550

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02' 919
85' cb450 (wife's)
78' cb550 project
84' z50r son's
09 trx90 daughter's
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