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636 Posts
So, picked this up in March and done quite a bit of work to her. I am keeping a log of hours work and money spent, and I am at $600 bucks in parts(not including the purchase price of the bike) and 100 hours...so far. Been meaning to post it up here, as its always good to see builds. Plan is to get her mechanically sound and cleaned up then tackle the conversion to a light mean cafe.
Started as a none-runner, none-rolling 99% complete bike. Last tabbed in 1988 with just over 9,000 miles.
Didnt roll because rear drum and brake were in a dozen pieces and all jammed up. Didnt run because the carbs were gunked up. I did make sure it turned over, and there was oil in the case and sparkplugs in the engine.
Even came with 2 keys and a title! and an extra seat that didnt fit as i think it was off a 350.
here she is just after unloading from the truck, if picasa lets me link these...
a few parts cleaned up, brass bristle brushes do wonders with chrome! and blue magic polish...
did a bunch of work, rebuild stock brakes, carbs, general tuneup stuff, tires, clean tank, etc and rode her for a few hundred miles. oh, took the ape hangers and the luggage rack off of course. but noise from the cam chain, and smoke from the breather and 2nd gear popping in and out. I fixed the shift drum detent, but the damage to the internals had already been done and 2nd gear still popped, needs new rings anyway, so i cracked her open.
can see that the shift forks are very worn and maybe even a bit bent, and that the 2nd gear interface has rounded off the nubs a bit. can see why it would pop in and out! getting a doner tranny from ebay to sort this out. hopefully. just opened it up last night. lots of carbon to clean up too.
and all the cam chain noise was because the rubber ring is missing from the left side of that cam. explains the plastic "teeth" in the oil. everything else looks pretty good, but have not dug into the head yet.
if needed, can the valve stem seals be replaced easily or do the guides have to be pulled? any way to know that the torsion bars are still decent? i guess that they are as i have taken her pretty close to redline and no valve or piston damage from them crashing.
more to come.
anybody know what parts honda had in their retrofit kit to fix the 2nd gear problem for the k1-k4 bikes? the tranny i am getting is a k6.
for the shifting problem, does the wear on the end of the shift drum in the picture above look ok? the cam paths and the dowels that follow them are fine, not any noticable wear at all. the wear is probably 1/2 a mm or so at its worst.
Started as a none-runner, none-rolling 99% complete bike. Last tabbed in 1988 with just over 9,000 miles.
Didnt roll because rear drum and brake were in a dozen pieces and all jammed up. Didnt run because the carbs were gunked up. I did make sure it turned over, and there was oil in the case and sparkplugs in the engine.
Even came with 2 keys and a title! and an extra seat that didnt fit as i think it was off a 350.
here she is just after unloading from the truck, if picasa lets me link these...






a few parts cleaned up, brass bristle brushes do wonders with chrome! and blue magic polish...



did a bunch of work, rebuild stock brakes, carbs, general tuneup stuff, tires, clean tank, etc and rode her for a few hundred miles. oh, took the ape hangers and the luggage rack off of course. but noise from the cam chain, and smoke from the breather and 2nd gear popping in and out. I fixed the shift drum detent, but the damage to the internals had already been done and 2nd gear still popped, needs new rings anyway, so i cracked her open.








can see that the shift forks are very worn and maybe even a bit bent, and that the 2nd gear interface has rounded off the nubs a bit. can see why it would pop in and out! getting a doner tranny from ebay to sort this out. hopefully. just opened it up last night. lots of carbon to clean up too.
and all the cam chain noise was because the rubber ring is missing from the left side of that cam. explains the plastic "teeth" in the oil. everything else looks pretty good, but have not dug into the head yet.
if needed, can the valve stem seals be replaced easily or do the guides have to be pulled? any way to know that the torsion bars are still decent? i guess that they are as i have taken her pretty close to redline and no valve or piston damage from them crashing.
more to come.
anybody know what parts honda had in their retrofit kit to fix the 2nd gear problem for the k1-k4 bikes? the tranny i am getting is a k6.
for the shifting problem, does the wear on the end of the shift drum in the picture above look ok? the cam paths and the dowels that follow them are fine, not any noticable wear at all. the wear is probably 1/2 a mm or so at its worst.