Topic: 1976 Honda cb750K

[BenelliSEI]

The “brine” we’ve been spreading here seems even more corrosive than raw salt. I try and stay off the roads with the old bikes until we’ve had a few good rains…….

[BenelliSEI]

    Forecast here is for more snow and rain starting tomorrow so what the heck. I took the K6 out for its maiden voyage. Did 58 miles on a sunny (chilly!) afternoon and it runs really well. 55-65 psi oil pressure on the run and +20 at a hot idle. I did notice an oil track that I hope is just coming from the cam cover. Will check it out tomorrow.
    The motorcycle had a weird pogo stick kind of bounce for the first 5-10 miles that seemed to disappear. The Bridgestone Accolade tires had zero miles on them when I picked up this bike. It spent 7-8 years in the back of my shop (covered, warm and dry). I wonder if the front tire had a “flat spot” that eventually pounded out? I also forgot to check tire pressures so it may be a bit hard too.

[denward17]

Good first ride John!

Hopefully the oil leak will be easy to fix, may even cure itself with engine heat.

[grcamna2]

Your bike is looking good John.

[BenelliSEI]

Den….. in my experience, not much fixes itself. Fingers crossed.

Bill….. Thanks for that, it was a good first run.

[HondaMan]

    Forecast here is for more snow and rain starting tomorrow so what the heck. I took the K6 out for its maiden voyage. Did 58 miles on a sunny (chilly!) afternoon and it runs really well. 55-65 psi oil pressure on the run and +20 at a hot idle. I did notice an oil track that I hope is just coming from the cam cover. Will check it out tomorrow.
    The motorcycle had a weird pogo stick kind of bounce for the first 5-10 miles that seemed to disappear. The Bridgestone Accolade tires had zero miles on them when I picked up this bike. It spent 7-8 years in the back of my shop (covered, warm and dry). I wonder if the front tire had a “flat spot” that eventually pounded out? I also forgot to check tire pressures so it may be a bit hard too.

Great oil PSI!

The 'pogo' feeling in the front end likely came from the inner dampers not yet being filled with the oil. If you check their level now, you will find them about 3.2 ounces low, which is the oil that stays inside the inner damper when the post-3/1972 forks are drained. That's why they are always so messy when the lowers get removed to replace a seal: they are stingy about giving up that inner oil!

This only happens with the forks after the 3/1972 change. The earlier dampers have external oil valving on the fork tube, which lets air into the lower end of the tube when you drain those - and that's why it takes a long time to drain those, as the later ones drain 'quickly' because they are still harboring about 30% of the oil.

[BenelliSEI]

    Forecast here is for more snow and rain starting tomorrow so what the heck. I took the K6 out for its maiden voyage. Did 58 miles on a sunny (chilly!) afternoon and it runs really well. 55-65 psi oil pressure on the run and +20 at a hot idle. I did notice an oil track that I hope is just coming from the cam cover. Will check it out tomorrow.
    The motorcycle had a weird pogo stick kind of bounce for the first 5-10 miles that seemed to disappear. The Bridgestone Accolade tires had zero miles on them when I picked up this bike. It spent 7-8 years in the back of my shop (covered, warm and dry). I wonder if the front tire had a “flat spot” that eventually pounded out? I also forgot to check tire pressures so it may be a bit hard too.

Great oil PSI!

The 'pogo' feeling in the front end likely came from the inner dampers not yet being filled with the oil. If you check their level now, you will find them about 3.2 ounces low, which is the oil that stays inside the inner damper when the post-3/1972 forks are drained. That's why they are always so messy when the lowers get removed to replace a seal: they are stingy about giving up that inner oil!

This only happens with the forks after the 3/1972 change. The earlier dampers have external oil valving on the fork tube, which lets air into the lower end of the tube when you drain those - and that's why it takes a long time to drain those, as the later ones drain 'quickly' because they are still harboring about 30% of the oil.

Mark…..Thanks for that, explains the “improvement” as I went along. I know I completely dismantled them and really scrubbed all the crud out so they were completely empty. Do you add the “extra” or just leave it?

[PeWe]

    Forecast here is for more snow and rain starting tomorrow so what the heck. I took the K6 out for its maiden voyage. Did 58 miles on a sunny (chilly!) afternoon and it runs really well. 55-65 psi oil pressure on the run and +20 at a hot idle. I did notice an oil track that I hope is just coming from the cam cover. Will check it out tomorrow.
    The motorcycle had a weird pogo stick kind of bounce for the first 5-10 miles that seemed to disappear. The Bridgestone Accolade tires had zero miles on them when I picked up this bike. It spent 7-8 years in the back of my shop (covered, warm and dry). I wonder if the front tire had a “flat spot” that eventually pounded out? I also forgot to check tire pressures so it may be a bit hard too.

Great oil PSI!

The 'pogo' feeling in the front end likely came from the inner dampers not yet being filled with the oil. If you check their level now, you will find them about 3.2 ounces low, which is the oil that stays inside the inner damper when the post-3/1972 forks are drained. That's why they are always so messy when the lowers get removed to replace a seal: they are stingy about giving up that inner oil!

This only happens with the forks after the 3/1972 change. The earlier dampers have external oil valving on the fork tube, which lets air into the lower end of the tube when you drain those - and that's why it takes a long time to drain those, as the later ones drain 'quickly' because they are still harboring about 30% of the oil.

Mark…..Thanks for that, explains the “improvement” as I went along. I know I completely dismantled them and really scrubbed all the crud out so they were completely empty. Do you add the “extra” or just leave it?

I have to pump the later (341) fork to drain the oil when doing an oil change.
I found that 175ml in each leg after oil drained and pumped out.
(Measured with fork completely collapsed without springs, 160mm from top.)

Completely dry,  more is needed, 60-70ml more/each if I have got it right.

Taking it apart for gator boots replacement (cheap aftermarket has very short life) or oil seal replacement I clean the lowers inside. Flush it with naphta.
Did that this winter on my K2-1975.
Remove the lowers with fender as one package easiest for me. (Wheel off before.)

[Shtonecb500]

    Forecast here is for more snow and rain starting tomorrow so what the heck. I took the K6 out for its maiden voyage. Did 58 miles on a sunny (chilly!) afternoon and it runs really well. 55-65 psi oil pressure on the run and +20 at a hot idle. I did notice an oil track that I hope is just coming from the cam cover. Will check it out tomorrow.
    The motorcycle had a weird pogo stick kind of bounce for the first 5-10 miles that seemed to disappear. The Bridgestone Accolade tires had zero miles on them when I picked up this bike. It spent 7-8 years in the back of my shop (covered, warm and dry). I wonder if the front tire had a “flat spot” that eventually pounded out? I also forgot to check tire pressures so it may be a bit hard too.

Bike looks super clean, congrats on the first ride and good luck with the minor issues.

[BenelliSEI]

Thanks! The oil was coming from the (missing) tach cable seal. I pulled out two old ones ages ago. Didn’t have one and forgot to order a replacement!! Got a few coming today…….

[grcamna2]

Thanks! The oil was coming from the (missing) tach cable seal. I pulled out two old ones ages ago. Didn’t have one and forgot to order a replacement!! Got a few coming today…….

John,did that storm come through your area ?

[BenelliSEI]

Thanks! The oil was coming from the (missing) tach cable seal. I pulled out two old ones ages ago. Didn’t have one and forgot to order a replacement!! Got a few coming today…….

John,did that storm come through your area ?

Not yet. Very grey and windy. It’s coming.

[BenelliSEI]

Good first ride John!

Hopefully the oil leak will be easy to fix, may even cure itself with engine heat.

Den….. tightened up all the covers and have run it a few more times. Seems you were right and it has “healed”!

[Stev-o]

Bike looks great, nice job John!

[BenelliSEI]

Bike looks great, nice job John!

Thanks Steve. I’m really pleased with it; it’s running really well. I need to replace the tach seal and the rubber gasket on the gas cap (parts arrived today) and that’s about it. The side cover emblem I was missing came from Saskatchewan today too. Thank you Lyle, in the parts dept. of Shrader Honda! They’d been in their inventory for so long, he was extremely “friendly” with his pricing!

Of course it’s snowing hard right now(!) so it might not get out again, for a few days.

[grcamna2]

Bike looks great, nice job John!

Thanks Steve. I’m really pleased with it; it’s running really well. I need to replace the tach seal and the rubber gasket on the gas cap (parts arrived today) and that’s about it. The side cover emblem I was missing came from Saskatchewan today too. Thank you Lyle, in the parts dept. of Shrader Honda! They’d been in their inventory for so long, he was extremely “friendly” with his pricing!

Of course it’s snowing hard right now(!) so it might not get out again, for a few days.

These sidecover emblems will certainly be 'the icing on the cake' to your Very nice 76' John.

[BenelliSEI]

Bike looks great, nice job John!

Thanks Steve. I’m really pleased with it; it’s running really well. I need to replace the tach seal and the rubber gasket on the gas cap (parts arrived today) and that’s about it. The side cover emblem I was missing came from Saskatchewan today too. Thank you Lyle, in the parts dept. of Shrader Honda! They’d been in their inventory for so long, he was extremely “friendly” with his pricing!

Of course it’s snowing hard right now(!) so it might not get out again, for a few days.

These sidecover emblems will certainly be 'the icing on the cake' to your Very nice 76' John.

Certainly a nice set! Stu also sent me the one I need, so these may get “put aside”.

[PeWe]

Real diamonds made when  bike was made, not newer, right?

[BenelliSEI]

Real diamonds made when  bike was made, not newer, right?

Per….. Lyle said these were in their inventory “since the late 70’s”!

[BenelliSEI]

Won’t be riding for a few days. View out our kitchen window, this morning.

[PeWe]

I had -8.5C this morning when I took the bicycle to my job 06:00.
No snow nor ice, yet. It can happen the first 10 days of April as the last 4 years.

[Stev-o]

Won’t be riding for a few days. View out our kitchen window, this morning.

Looks pretty but no thanks! Will be sunny and 86* here today....

[PeWe]

Real diamonds made when  bike was made, not newer, right?

Per….. Lyle said these were in their inventory “since the late 70’s”!

Those must be extra correct with those labels then!

[newday777]

Well I won't be riding until we get some good washing rain again as the storm you sent my way John started as rain yesterday and turned to heavy wet snow after sundown. Awoke to 6" this morning. This is looking out the shop door going up the hill to the upper section of the barn.
Probably a week according to the forecast so far before it rains enough to wash the salt off the roads and the mud dries up again....

[BenelliSEI]

Well I won't be riding until we get some good washing rain again as the storm you sent my way John started as rain yesterday and turned to heavy wet snow after sundown. Awoke to 6" this morning. This is looking out the shop door going up the hill to the upper section of the barn.
Probably a week according to the forecast so far before it rains enough to wash the salt off the roads and the mud dries up again....

Yep! Same here, we have at least 10-12” of heavy snow and our power is out. I have a generator big enough to keep the furnace and fridges running, so we are comfortable…….