Author Topic: SOHC/4 engine wear, solutions?  (Read 3438 times)

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Offline Stev-o

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Re: SOHC/4 engine wear, solutions?
« Reply #25 on: September 18, 2012, 06:45:24 PM »
Carbs are most likely the culprit. Bike sat for a period of non use, battery went dead, owner tried to start and it wouldn't. Just let it sit.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline cougar

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Re: SOHC/4 engine wear, solutions?
« Reply #26 on: September 18, 2012, 08:20:31 PM »
Jason ; Really, don't worry about rebuilding till you've checked it out and tried to start it. Last year I bought a cb750 (SOHC) that had been sitting for over 12 years and it was in rough shape, barely enough left on the bike to get it started ! Brought it home and within 2 days It was a running motor. So try to get it running first ! You maight be suprised.   ...cougar...
I'm not prejudice, I'll weld anything that pays! Knowledge that is shared is Never Lost!!   Right is right, wrong is wrong! The truth is the truth and a lie is a lie! DEAL WITH IT ACCORDINGLY !!!   I HATE "DIAL-UP"

Offline lone*X

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Re: SOHC/4 engine wear, solutions?
« Reply #27 on: September 18, 2012, 08:26:21 PM »
"Bike hasn't been ran in at least a decade, quite possibly much longer and there had to be some reason it stopped being used"

Jason,  There are many reasons a bike can be parked long enough to no longer start.  The rider could have lost interest, maybe he knew someone who crashed on a bike, maybe the wife said no to many times, or maybe he just didn't know how to properly set it up for the winter.  Not everyone is a lifetime rider.  The majority of old bikes found in garages or barns or even in the pasture, are there from neglect, not that they were wore out.  The good news is that in most cases the neglect can be corrected.   

A short history lesson.  In the 1970's OPEC was just starting to flex its muscles and decided to cut supply to force the price per barrel up.  Caused major shortages world wide, stations had to limit gas purchases, long lines of cars waiting at empty pumps for tankers that may not show up.  Went on for several months.  Side affect is that thousands of people bought their first motorcycle because they could go a lot further on a gallon than the 429 CI family truckster.   Since they bought the bike for the wrong reason, when gas freed up and the pumps were full again those bikes were no longer being rode.   In the early 80's you could find used bikes all day long with only a few miles on them for dirt cheap.   I imagine many of the low mile finds we hear of fall into this category.





Lone*X  ( Don )

75 CB550K1  
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Several others have come and gone but whose keeping track.
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Offline Lostboy Steve

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Re: SOHC/4 engine wear, solutions?
« Reply #28 on: September 19, 2012, 12:31:10 PM »
Mine sat since 91. After a good cleaning it ran, just not well. I had to rebuild the engine due to terrible valve seats from rust buildup.  The engine had original 9k on it so after measuring, the bores and pistons went back in with new rings and the aforementioned coatings.
1968 Honda Z50
1977 Honda CB550K
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