FRANKENHONDA II the 1982 DOHC CB 750F2 Build

cb250nproject said:
Those nutserts are awesome, I can’t believe I didn’t know about these I’m going to look into these.

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I had a mate that was a mechanical engineer at Wollongong Uni and they had a nutsert tool there that he showed me. I was that impressed I got him to borrow it for a night and I made a copy (up very late that night) and have been using them ever since, with never a problem. The inserts are very cheap and come in thick or thin walled steel applications, and if they happen to spin you can just reseat them again with the tool. At the time the tools were quite expensive to buy, but I see now that the good old Chinese have copied them and they are now cheap, so I think you need to buy one.
www.ebay.com.au

106pcs Nut Rivet Riveter Rivnut Nutsert Gun M3-M8 Threaded Mandrels Riveting Kit | eBay

Find many great new & used options and get the best deals for 106pcs Nut Rivet Riveter Rivnut Nutsert Gun M3-M8 Threaded Mandrels Riveting Kit at the best online prices at eBay!
www.ebay.com.au
 
Pete12 said:
I had a mate that was a mechanical engineer at Wollongong Uni and they had a nutsert tool there that he showed me. I was that impressed I got him to borrow it for a night and I made a copy (up very late that night) and have been using them ever since, with never a problem. The inserts are very cheap and come in thick or thin walled steel applications, and if they happen to spin you can just reseat them again with the tool. At the time the tools were quite expensive to buy, but I see now that the good old Chinese have copied them and they are now cheap, so I think you need to buy one.
www.ebay.com.au

106pcs Nut Rivet Riveter Rivnut Nutsert Gun M3-M8 Threaded Mandrels Riveting Kit | eBay

Find many great new & used options and get the best deals for 106pcs Nut Rivet Riveter Rivnut Nutsert Gun M3-M8 Threaded Mandrels Riveting Kit at the best online prices at eBay!
www.ebay.com.au
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purchased
 
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Like most jobs, it became a little more involved than I had anticipated. In order to gain access to the frame to drill a hole in it the front wheel and brake calipers had to be removed.

But it was well worth it, as I now have a bracket that looks like it was meant to be there.

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Cheers Pete for the sage words of wisdom


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Nutserts? That's what those things are called? Nice, the guy that upholstered my seat used them as a way of allowing me to bolt the pan onto the frame, but I had no idea what they were called. Now I do. Was it an easy tool to use? Bracket looks so much cleaner mate, nice job.
 
That is a nice upgrade. Not as funky or artistic and v1.0, but certainly appropriate.

I would never have thought of using a rivnut in that application.
 
Jimbonaut said:
Nutserts? That's what those things are called? Nice, the guy that upholstered my seat used them as a way of allowing me to bolt the pan onto the frame, but I had no idea what they were called. Now I do. Was it an easy tool to use? Bracket looks so much cleaner mate, nice job.
Click to expand...
This is the one I made, as I only had one night to do it I made it out of sheet steel and welded it together, but it has served me well. Screw the nutsert on the end, put it into position and squeeze the handles together.

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cb250nproject said:
Like most jobs, it became a little more involved than I had anticipated. In order to gain access to the frame to drill a hole in it the front wheel and brake calipers had to be removed.

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You might need one of these too Phillip
www.auaccessories.com

90° Degree Right Angle Drill Attachment 1/4" Drive Adapter With Chunk Key

SPECIFICATIONS Material:Plastic+Metal. Color: Black Handle and Silver Head 3/8" -24 thd and 1/16"-3/8" cap Product size：125x92x48cm Product weight：470g
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I love spending other peoples money lol
 
Where have you been all my life Pete lol, spend away, better you spend it and I end up with a shed full of useful tools, it’s either that or the wife spends it and I end up with nothing.


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FordKid said:
That oil cooler looks awesome, how will that affect the heat exchanger properties?
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It should make a fair difference, in comparison to how it was originally (air cooled). The race bikes that were in Rexs workshop at Trex racing were set up a lot better, my cooler won’t be as effective as those for a few reasons; I have the hoses feeding in from the bottom, if you want to do it correctly the hoses should come in and out of the top of the cooler then feed down to the sump, this is the most effective configuration, but to do that I would have had to run some funky - 8 90 degree elbow set up. Also Rex places his coolers front and centre as they don’t run head lights, whereas mine is tucked in behind the mud guard, and above the exhaust headers, so it won’t get as much airflow past it. Finally he runs much larger coolers, but we had a discussion and came to the conclusion that for how I would be riding it, the cooler and it’s orientation were more than enough.

My original motivation for this modification was I suffered vapour lock one day when I was riding on a hot day (my first long trip on the bike) this was a combination of the engine temp and the route I had my fuel line, it was running in between the carbs and the cylinder head, getting hot. She gets pretty hot here sometimes and I don’t want to cook the motor. When your last name is Murphy, you can’t be too careful.



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Wonderful looking bike. The oil cooler looks stock, definitely does not have that modified / after thought look. Great work. The holes in the rear disk help with aesthetics too
 
Looking the business. Very impressed with the oil cooler set-up. Great work.

I’m in the market for a new exhaust - what brand is yours? And when are we gonna get to hear this beauty fired up?


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Jimbonaut said:
Looking the business. Very impressed with the oil cooler set-up. Great work.

I’m in the market for a new exhaust - what brand is yours? And when are we gonna get to hear this beauty fired up?


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In line with the Frankenhonda theme it’s a bitsa system the headers are Mac 4-2-1 tri y headers and the muffler is a 2 1/2 tri y muffler from cycle x and I polished it up to try and match the header


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Progress is slow, trying to tie into the lines of the frame, I’m in charge of aesthetics, while OMM is putting in the real skill
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Slightly modified design, that takes into consideration the shortened kickstand that was coming up and obstructing the peg.

Now to make the MDF prototype


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