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Author Topic: This is my first CB750F  (Read 14494 times)

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Offline Johnny340

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Re: This is my first CB750F
« Reply #75 on: March 13, 2018, 10:55:05 AM »
Quote from: calj737 on March 13, 2018, 04:32:34 AM
Johnny - Is your tank bare metal inside? If so, you might try this product Master Series Silver. Another member, Pete was so damn adamant about it, I gave it a go. Its a moisture cured "primer" that you dump in, tumble once or twice, pour out. Let stand for 2-3 days, voila, done. Ethanol and gas resistant, and super thin, and no other chemicals. I'm impressed with it.

Yes the tank is bare inside.  It looked really good so I used Metal Rescue in case there was any surface rust I couldn't see and I rinsed it out, then sprayed Dry Coat. I don't know if something happened while it got dipped at the hydro graphic place but there were black flecks in it.  It is clean again and I have an inline filter as well.  I may try that stuff in the link.
I'd like to get it running perfect if possible now that the black flecks are taken care of.  I thought that raising the needles was going to do it but it still hangs before idling down.  The air screws have some affect on this (1/2T out is better than 1& 1/2T out).  I have one size up on the Pilots already at 45.  It's almost behaving like there is an air leak..  Any thoughts? 
CX3 cam with 251 duration should idle without hanging, eh?
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1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline calj737

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Re: This is my first CB750F
« Reply #76 on: March 13, 2018, 12:23:40 PM »
Quote from: SOHC4 Cafe Racer Fan on March 13, 2018, 08:19:44 AM
Quote from: calj737 on March 13, 2018, 04:32:34 AM
Johnny - Is your tank bare metal inside? If so, you might try this product Master Series Silver. Another member, Pete was so damn adamant about it, I gave it a go. Its a moisture cured "primer" that you dump in, tumble once or twice, pour out. Let stand for 2-3 days, voila, done. Ethanol and gas resistant, and super thin, and no other chemicals. I'm impressed with it.

Hey, Cal.  Are you referring to the Primer/Sealer Silver product: https://shop.masterseriesct.com/product.sc;jsessionid=E94EE496B956F91F16821D32D396CC33.p3plqscsfapp006?productId=6&categoryId=1 ?
It looks like a pint would be sufficient for a gas tank.  Probably a lot thinner coat than Caswell epoxy.
Yep. And it is thiner and more workable than Caswell. Jury is still out on durability, but I've used it on some stuff in the shop I fab'ed up from steel and so far is working out well. Applied it with a foam brush on those steel surfaces.
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Offline SOHC4 Cafe Racer Fan

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Re: This is my first CB750F
« Reply #77 on: March 13, 2018, 12:38:04 PM »
Quote from: calj737 on March 13, 2018, 12:23:40 PM
Quote from: SOHC4 Cafe Racer Fan on March 13, 2018, 08:19:44 AM
Quote from: calj737 on March 13, 2018, 04:32:34 AM
Johnny - Is your tank bare metal inside? If so, you might try this product Master Series Silver. Another member, Pete was so damn adamant about it, I gave it a go. Its a moisture cured "primer" that you dump in, tumble once or twice, pour out. Let stand for 2-3 days, voila, done. Ethanol and gas resistant, and super thin, and no other chemicals. I'm impressed with it.

Hey, Cal.  Are you referring to the Primer/Sealer Silver product: https://shop.masterseriesct.com/product.sc;jsessionid=E94EE496B956F91F16821D32D396CC33.p3plqscsfapp006?productId=6&categoryId=1 ?
It looks like a pint would be sufficient for a gas tank.  Probably a lot thinner coat than Caswell epoxy.
Yep. And it is thiner and more workable than Caswell. Jury is still out on durability, but I've used it on some stuff in the shop I fab'ed up from steel and so far is working out well. Applied it with a foam brush on those steel surfaces.

Good to know.  Fortunately, my next tank is aluminum so I should not need to coat it.
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Offline Johnny340

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Re: This is my first CB750F
« Reply #78 on: March 13, 2018, 03:56:47 PM »
Fixed the neutral switch.  :)

Runs best with Air Screws at only 1/4 turn out which leads me to believe the Pilots are still too small.  It idles great there but still has a hang up at 2300RPM for a couple seconds before idling down.  Any suggestions? Thx.

Another pic.
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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Johnny340

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Re: This is my first CB750F
« Reply #79 on: October 02, 2018, 12:08:20 PM »
Fixed Idle and it runs perfect now! New Fox shocks.  Finished!  Super fun to ride!!


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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Johnny340

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Re: This is my first CB750F
« Reply #80 on: October 02, 2018, 12:26:41 PM »
More pics
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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline 754

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Re: This is my first CB750F
« Reply #81 on: October 02, 2018, 01:38:19 PM »
 Great looking bike  look me up if you get up this way..
 One thing I would do if it's were mine,
 I would make headlight bracket lo get and curl the front down to at least midpoint of damper. If you did not use countersunk Allen head to mount light block, that can get it lower.
 Or just paint the damper black, make it blend in, right now it stands out.l
 Enjoy the bike.,
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Offline Johnny340

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Re: This is my first CB750F
« Reply #82 on: October 04, 2018, 08:24:46 PM »
Thanks a lot Frank!  You bet I will when I'm in town.
I know what  you mean about the steering dampener.  I have the headlight as low as possible and it just barely clears the dampener as it is.  I tried it lower but it would have had to stick out front too far to clear it..  You're right, I'll paint the dampener black so it doesn't stand out and that should improve the look of the front end.

It's super fun to ride, but Summer ended too fast!
« Last Edit: October 04, 2018, 08:26:52 PM by Johnny340 »
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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline Johnny340

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Re: This is my first CB750F
« Reply #83 on: October 17, 2018, 09:07:10 AM »
I just wanted to say a big THANK YOU too all of the forum members who helped me out!  I would never have been this happy with it without all of the help.  What a great forum!  You know who you are but these ones pop into my head: 754, Calj737, Flybox1, Bodi, Hondaman, Scottly, TwoTired, PeWe, godffery, Mystic1. Thank you to you and all the others who helped or even just offered an opinion along the way.
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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250

Offline diep

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Re: This is my first CB750F
« Reply #84 on: December 09, 2018, 08:15:40 PM »
love the work you did on your bike, its beautiful. where did you get the seat and seat pan?
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Offline Johnny340

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Re: This is my first CB750F
« Reply #85 on: December 09, 2018, 09:39:38 PM »
Quote from: diep on December 09, 2018, 08:15:40 PM
love the work you did on your bike, its beautiful. where did you get the seat and seat pan?

Thanks for your comments!  I had the seat custom made from a friend in the upholstery business and the seat pan came from here:
https://www.dimecitycycles.com/legendary-motorcycles-fiberglass-thruxton-cafe-racer-motorcycle-seat-pan.html
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1975 CB750F0 Super Sport
1972 CB750K2
1981 CB650
1974 T-500
2003 GSXR750
2006 YZ250
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