Topic: Bringing a 750 K1 back to life

[Laids]

And crimping on the new ones?

There’s a few videos on u-tube showing how to attach the crimp ring.

[BenelliSEI]

I’ve seen those but mine didn’t turn out the way the video shows!

[MauiK3]

I miss Marcel, he did a great job on mine.

[Laids]

I miss Marcel, he did a great job on mine.

Marcel did my KO gauges about 12 years ago. I think it was about $750 then.

[Laids]

I’ve seen those but mine didn’t turn out the way the video shows!

I did the faces on my K8 cafe about 15 years ago they were sticker type. On that I cut the crimp ring then epoxied and clamped it. Still holding but not a concours job, mostly hidden underneath.
For these K1 gauges I made a jig that will hold the gauge firm to allow the crimp ring to be tapped closed a little at a time. I saw it done somewhere else, I think it should work.
Just waiting for the Yamiya faces to arrive to see if they are transparent on the back like the originals.

[Laids]

You can see the gap in the crimp ring in the top pic. In the last pic you can see the open crimp ring.

[Laids]

To bring this project up to date, I’ve been chipping away and made much progress. Gauges are on , all cables, wiring is connected. Connected but no power, I finally hit the wall with my limited electrical knowledge. Called my friend Bill M , longtime wrench with 50 years of experience Who kindly came over. Problems solved , everything working.
Now ready for startup. Started right up but oil light didn’t go off so I shut it down. It sounded good so I too took a pressure gauge off another bike to put on to make sure. Started with 70 to 80 psi showing so for now ignoring the oil light, still a little disconcerting with that bright red light in your face crying warning.
Next is unpacking the tank which was in a container with the side covers and emblems , all were included when I bought it. I had a quick examination of it earlier but when I fitted it to the bike I noticed where it fits on to the rubber holders on the neck it was wider apart than any tank I’ve seen, see pictures compared to a K4 tank.
Test ride tomorrow.

[BenelliSEI]

Bike is looking really fantastic. Did you check if the oil pressure warning light is a switch or wiring problem? Leave that pressure switch alone for a while. I’ve had a few that sorted themselves after a few heat cycles!

The tank I just fitted to the K1 has the same problem. It’s a lot wider across the rubber mounts than the original too! Thinking of machining up some plastic ones that are a bit taller than the rubber “knobs”…..?

[Kelly E]

I had my nephew 3D print a pair of oval shaped "knobs" for the 77' KZ 1000 to keep the tank from sliding forward a 1/4" and smacking the fuel petcock on the back of the valve cover. Worked out great.
He only had white so I painted them black so I couldn't see them.

[BenelliSEI]

I had my nephew 3D print a pair of oval shaped "knobs" for the 77' KZ 1000 to keep the tank from sliding forward a 1/4" and smacking the fuel petcock on the back of the valve cover. Worked out great.
He only had white so I painted them black so I couldn't see them.

Yep… same idea.

[Laids]

Bike is looking really fantastic. Did you check if the oil pressure warning light is a switch or wiring problem? Leave that pressure switch alone for a while. I’ve had a few that sorted themselves after a few heat cycles!

The tank I just fitted to the K1 has the same problem. It’s a lot wider across the rubber mounts than the original too! Thinking of machining up some plastic ones that are a bit taller than the rubber “knobs”…..?

I checked the connections, I’ll leave the switch for while to see if it corrects itself. They can be a bear to to get off.

[newday777]

Bike is looking really fantastic. Did you check if the oil pressure warning light is a switch or wiring problem? Leave that pressure switch alone for a while. I’ve had a few that sorted themselves after a few heat cycles!

The tank I just fitted to the K1 has the same problem. It’s a lot wider across the rubber mounts than the original too! Thinking of machining up some plastic ones that are a bit taller than the rubber “knobs”…..?

I checked the connections, I’ll leave the switch for while to see if it corrects itself. They can be a bear to to get off.

A 12 point socket is what to use on the oil pressure switch

[BenelliSEI]

Bike is looking really fantastic. Did you check if the oil pressure warning light is a switch or wiring problem? Leave that pressure switch alone for a while. I’ve had a few that sorted themselves after a few heat cycles!

The tank I just fitted to the K1 has the same problem. It’s a lot wider across the rubber mounts than the original too! Thinking of machining up some plastic ones that are a bit taller than the rubber “knobs”…..?

I checked the connections, I’ll leave the switch for while to see if it corrects itself. They can be a bear to to get off.

Does the light go off if you pull the wire off the switch? It sends a ground to the lamp. That confirms the wiring is all OK.

[Don R]

 If someone tried compressed air or freezing water in a tank to blow a dent out, that would spread them apart. I've trimmed the rubber knobs for a fibermold tank. 

[Stev-o]

I’ve been chipping away and made much progress.

Bike looks great!  Wide tank looks odd, have not seen that before...

[ofreen]

If someone tried compressed air or freezing water in a tank to blow a dent out, that would spread them apart.

Yes, that is what it looks like.  I am embarrassed to say I did that to mine about 35 years ago when I thought I had a bright idea.  Didn't take much pressure to do it either.  I pulled it back in with padded ratchet straps, but it was a memorable bonehead move on my part.  The dent did pop out a little.

[BenelliSEI]

I don’t think mine’s been worked. It had an original plain chrome trim strip so I think it was a K0 tank. When I fitted it to the K1 it is a bit loose. I’ll make some “extended” rubber “knobs” next time I take it off…..

[Laids]

Got out for the test ride today, just into town and back, about 10 miles. One half highway the other back roads. Acceleration was good but some popping on deceleration. All round felt good.
I took the oil pressure gauge wire off and grounded it against the engine, blew a fuse.

[BenelliSEI]

Bike looks stunning!

Check the bulb holder? Should have power when the key is on and gets a ground from the switch…..

[Stev-o]

Acceleration was good but some popping on deceleration.

Could be a bit lean or exhaust leak?  Bike looks good, nice job!

[Laids]

As to the wide tank anomaly, here’s a pick of the 71 tank petcock and my 74 never been used tank  (till now ) petcock, notice the angle differences. Clearly the 71 tank has been tampered with.

[MauiK3]

very nice.
strange petcock issue.