Hi all ! I picked up this project bike a while ago in France and imported it to Belgium.
I have been searching and collecting the missing parts and bits for the last year and have it fairly complete ( as in the hard to find parts : side covers , tank , rear fender, ignition advancer, ignition coil.. are all there now)
The bike was in pieces when i bought it and i put it together bit by bit and got it running eventually. ( the previous owner told me he had recently put the engine in another rolling frame and it ran i was told).
So i started going through the wiring and connectors , battery , coil , rectifier , ignition , advancer , points new battery and made sure those were all good and working as they should.
Then i cleaned the carburators ( removed jets and cleaned them out , checked the floats and float height , checked / cleaned / blew out the passages) couple of passes in the ultrasonic cleaner.
I did check the engine timing and camchain tension(er) and changed the oil , cleaned out the oil centrifugal filter and put new spark plugs in the engine and adjusted the valves.
I put the engine in the frame , did ignition timing ( point gap and static timing with a timing light). and i got it started and running.
I tested compression with a automotive compression meter and got inaccurate results way to low for it even to be able to run. ( 55 & 54 PSI). As the tester has a pretty long hose and the Shrader valve is at the gauge the volume of air in the hose and the hose itself influences the reading alot and the compression is a lot higher in reality. As it had compression and the compression was pretty much equal on both cylinders i went on with it and started syncing the carburators and try to get it to idle and run better.
It did idle and was able to reach high rpms for a while until the plugs foiled.
I then finally decided to remove the head to check the valves and pistons as the sparkplug on the right was wet black and from what i could see oily aswell.
So here we are , engine is back out and the head is removed and i guess we are doing a top end rebuild.
This is what i am currently working with , i was very suprised it did even ran as it did in this state, but i guess it is a honda, it will run.
I will be removing and cleaning the valves and pistons/rings/cilinders next to see what needs to be replaced / done further.
Any tips or some miracle solution / to clean off the carbon/oil deposits on the valves and pistons / rings are very welcome !
I have been searching and collecting the missing parts and bits for the last year and have it fairly complete ( as in the hard to find parts : side covers , tank , rear fender, ignition advancer, ignition coil.. are all there now)
The bike was in pieces when i bought it and i put it together bit by bit and got it running eventually. ( the previous owner told me he had recently put the engine in another rolling frame and it ran i was told).
So i started going through the wiring and connectors , battery , coil , rectifier , ignition , advancer , points new battery and made sure those were all good and working as they should.
Then i cleaned the carburators ( removed jets and cleaned them out , checked the floats and float height , checked / cleaned / blew out the passages) couple of passes in the ultrasonic cleaner.
I did check the engine timing and camchain tension(er) and changed the oil , cleaned out the oil centrifugal filter and put new spark plugs in the engine and adjusted the valves.
I put the engine in the frame , did ignition timing ( point gap and static timing with a timing light). and i got it started and running.
I tested compression with a automotive compression meter and got inaccurate results way to low for it even to be able to run. ( 55 & 54 PSI). As the tester has a pretty long hose and the Shrader valve is at the gauge the volume of air in the hose and the hose itself influences the reading alot and the compression is a lot higher in reality. As it had compression and the compression was pretty much equal on both cylinders i went on with it and started syncing the carburators and try to get it to idle and run better.
It did idle and was able to reach high rpms for a while until the plugs foiled.
I then finally decided to remove the head to check the valves and pistons as the sparkplug on the right was wet black and from what i could see oily aswell.
So here we are , engine is back out and the head is removed and i guess we are doing a top end rebuild.
This is what i am currently working with , i was very suprised it did even ran as it did in this state, but i guess it is a honda, it will run.
I will be removing and cleaning the valves and pistons/rings/cilinders next to see what needs to be replaced / done further.
Any tips or some miracle solution / to clean off the carbon/oil deposits on the valves and pistons / rings are very welcome !
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