Author Topic: Re: Bigsam302's 76 CB750F (915cc): Project Helen – Running Report! (Read 60947 times)

SOHC4 Cafe Racer Fan · « **Reply #75 on:** August 25, 2015, 10:51:02 PM »

Sam,

How much did RG3 charge to anodize your BPF forks?

Bigsam302 · « **Reply #76 on:** August 26, 2015, 05:52:43 AM »

Quote from: CB750 Cafe Racer Fan on August 25, 2015, 10:51:02 PM

Sam,

How much did RG3 charge to anodize your BPF forks?

I think that they charged me about $220.00 for the anodizing. It ended up costing a lot more than that because of the revalve and rebuild. They offer other colors as well. On their website they give you the option of a polished coating, but it is not available.

Sam

SOHC4 Cafe Racer Fan · « **Reply #77 on:** August 26, 2015, 07:52:33 AM »

I'll have to think about that once my bike is fully mocked and weighed.

Bigsam302 · « **Reply #78 on:** August 26, 2015, 08:56:17 AM »

Quote from: CB750 Cafe Racer Fan on August 26, 2015, 07:52:33 AM

I'll have to think about that once my bike is fully mocked and weighed.

Yeah I hear you! I think that once you start putting "Hot Mess" together, you will want to go in that direction. I was looking for all kind of options, including stripping off the coating and polishing them. This turned out to be the better option.

SOHC4 Cafe Racer Fan · « **Reply #79 on:** August 26, 2015, 10:25:16 AM »

I am exploring anodizing since there is nothing good on the bike and the finish could use a refresh. It all depends. I am already planning to revalve if there is a significant weight variance.

Bigsam302 · « **Reply #80 on:** August 27, 2015, 07:28:30 PM »

Yesterday I dropped my tank and seat off at a local motorcycle paint shop. Here is the color scheme that I am going with. It’s off of a 2014 Toyota FJ Cruiser. The color is called Heritage Blue. It is going to also have two black racing stripes and a custom Honda logo on it. The shop owner said that he should have it finished in 2 to 3 weeks. The rest of my bike should be ready to go by then.

Bigsam302 · « **Reply #81 on:** August 27, 2015, 07:29:26 PM »

Got a little work done today.

Pulled out my new Cycle X Super Studs made by Kibblewhite and installed them. These are way better than OEM!

Bigsam302 · « **Reply #82 on:** August 27, 2015, 07:31:44 PM »

I cleaned, taped off, and painted the cylinder block and head. I should be able to be able to bake them in the oven tomorrow after the wife leaves the house.

I can’t wait to run this cylinder head. It has:
-Cycle X #4 Race Port
-Kibblewhite 5mm Bee-Hive Spring Conversion Kit
-Oversized intake valves
-Light weight intake valves
-Light weight exhaust valves
-Intake guides and seals
-Exhaust guides and seals
- Keepers and lash caps
-Titanium retainers
-Chrome silicon springs
= BEAUTIFUL!

You can’t see it in the picture, but it is cool that Ken at Cycle X engraved my name in the bottom of the cylinder head.

That's all for tonight. More to follow!

SOHC4 Cafe Racer Fan · « **Reply #83 on:** August 27, 2015, 07:41:13 PM »

Awesome, Sam. Don't let the wife sniff out the paint in the oven!!

Bigsam302 · « **Reply #84 on:** August 27, 2015, 07:45:27 PM »

Quote from: CB750 Cafe Racer Fan on August 27, 2015, 07:41:13 PM

Awesome, Sam. Don't let the wife sniff out the paint in the oven!!

Yeah, I'm going to get home extra early tomorrow

Bigsam302 · « **Reply #85 on:** August 27, 2015, 07:46:45 PM »

Quote from: calj737 on August 27, 2015, 07:42:48 PM

And what cam are you planning, Sam?

Cal,

I got Cycle X's CX-7. It's the one that works best with the 915cc kit and what Ken and MReick recommended.

SOHC4 Cafe Racer Fan · « **Reply #86 on:** August 27, 2015, 10:53:47 PM »

Mike recommends the CX-7 camshaft for the 750 higher compression big bore (836-915) kits.

That port job should really wake up the motor, Sam.

I have some of the same spec goodies going into my 750 motor. I cannot wait to see what a little beastie she becomes.

Cycle X HD primary chains and tensioner
Cycle X race transmission
Slightly Lightened and Balanced crankshaft
Balance rotor
Cycle X Super Rods
Wiseco 836cc big bore kit
Cycle X Super Gasket set
Mike Rieck Stage IV port job, Kibblewhite 5mm valve conversion kit (34mm intake/28mm exhaust valves, guides, seals, springs, Ti retainers,
spring bases and lash caps), Serdi valve job, head milling
HD Cam Chain
APE adjustable cam sproket
APE HD studs
Cycle X CX-7 cam
Cycle X racing cam tensioner
Cycle X Cam Tower Stabilized Valve Cover
Cycle X Spin-Off Oil Filter Mount
Setrab Oil Cooler

Schenk · « **Reply #87 on:** August 27, 2015, 11:06:05 PM »

Wow, nice build man!

Bigsam302 · « **Reply #88 on:** August 28, 2015, 06:32:52 AM »

Quote from: CB750 Cafe Racer Fan on August 27, 2015, 10:53:47 PM

Mike recommends the CX-7 camshaft for the 750 higher compression big bore (836-915) kits.

That port job should really wake up the motor, Sam.

I have some of the same spec goodies going into my 750 motor. I cannot wait to see what a little beastie she becomes.

Cycle X HD primary chains and tensioner
Cycle X race transmission
Slightly Lightened and Balanced crankshaft
Balance rotor
Cycle X Super Rods
Wiseco 836cc big bore kit
Cycle X Super Gasket set
Mike Rieck Stage IV port job, Kibblewhite 5mm valve conversion kit (34mm intake/28mm exhaust valves, guides, seals, springs, Ti retainers,
spring bases and lash caps), Serdi valve job, head milling
HD Cam Chain
APE adjustable cam sproket
APE HD studs
Cycle X CX-7 cam
Cycle X racing cam tensioner
Cycle X Cam Tower Stabilized Valve Cover
Cycle X Spin-Off Oil Filter Mount
Setrab Oil Cooler

We are on the same page! I have all that stuff as well.

SOHC4 Cafe Racer Fan · « **Reply #89 on:** August 28, 2015, 07:24:27 AM »

Quote from: Bigsam302 on August 28, 2015, 06:32:52 AM

Quote from: CB750 Cafe Racer Fan on August 27, 2015, 10:53:47 PM
Mike recommends the CX-7 camshaft for the 750 higher compression big bore (836-915) kits.

That port job should really wake up the motor, Sam.

I have some of the same spec goodies going into my 750 motor. I cannot wait to see what a little beastie she becomes.

Cycle X HD primary chains and tensioner
Cycle X race transmission
Slightly Lightened and Balanced crankshaft
Balance rotor
Cycle X Super Rods
Wiseco 836cc big bore kit
Cycle X Super Gasket set
Mike Rieck Stage IV port job, Kibblewhite 5mm valve conversion kit (34mm intake/28mm exhaust valves, guides, seals, springs, Ti retainers,
spring bases and lash caps), Serdi valve job, head milling
HD Cam Chain
APE adjustable cam sproket
APE HD studs
Cycle X CX-7 cam
Cycle X racing cam tensioner
Cycle X Cam Tower Stabilized Valve Cover
Cycle X Spin-Off Oil Filter Mount
Setrab Oil Cooler

We are on the same page! I have all that stuff as well.

Sam,

I thought so, too. The motor is very similar in spec to Doctor D's 750SS. Twinline was able to get 80s rwhp.

Bigsam302 · « **Reply #90 on:** August 28, 2015, 08:21:56 AM »

Quote from: CB750 Cafe Racer Fan on August 28, 2015, 07:24:27 AM

Sam,

I thought so, too. The motor is very similar in spec to Doctor D's 750SS. Twinline was able to get 80s rwhp.
[/quote]

Yeah, I based my motor off of Tweakin and DoctorD's builds. My only regret is that I have never rode a stock CB750 before. It would be nice to have something to compare my build too.

SOHC4 Cafe Racer Fan · « **Reply #91 on:** August 28, 2015, 08:34:23 AM »

Well, in comparison to the bike you are building, the front end is spindly, the brakes are MUCH less powerful, the front handles a fraction as well, and the motor is anemic compared to one with a big bore, port and cam. It will be like night and day.

CBertels · « **Reply #92 on:** August 28, 2015, 09:09:52 AM »

This build looks amazing, great job!

Bigsam302 · « **Reply #93 on:** August 30, 2015, 07:46:52 PM »

Today I made some pretty good progress. Yesterday there was a huge heat wave in SOCAL and I didn’t spend much time outside working on my bike. I did end up baking my heads and they came out nicely. One thing that I wish that I would have done was file down some of the imperfections in the casting and smoothed the fines out. It looks great, but I think it would have looked even better.

I installed the base gasket, Cycle X Cam Chain Tensioner, and the cam chain slider. Even though you can’t see it in the picture, I did install the dowels and the rubber gaskets at the base of the head studs.

I took out my 915cc Pistons and they look gorgeous. It’s a shame that they are going to be hidden in my engine. I also had the pistons coated. That’s why the skirts are black.

Bigsam302 · « **Reply #94 on:** August 30, 2015, 07:49:32 PM »

After a lot of careful reading (and re-reading), I checked all of my piston ring gaps and everything looked fine. I installed the piston rings and got started assembling the rest of my engine.

I managed to get the cylinder block on. This was a pain in the butt! Pistons 2 & 3 went in very easily, but 1 & 4 worked every bit of my patience. I had to step away for a few minutes and try again. Finally, I got the block installed.

Next the cylinder head went on without a problem. I had to remove my steering damper to get it on, but I was able to put it back in its original location without an issue. I really like the way the mount turned out.

I did run into one very big snag. One of my cam shaft tower bolts was bent and stripped. Luckily, it wasn’t in my cylinder head at the time. I was trying to put a double nut on it so I could screw it into the head. That’s when I noticed that it was in really bad shape. So I had to stop there for the day. I was able to find another one on ebay and I should have it by the end of next week.

Stay tuned for more updates!

Bigsam302 · « **Reply #95 on:** August 30, 2015, 08:11:17 PM »

Thanks for the advice Cal! I'll give it a shot. I was just going to check it again by trying to torque it again tomorrow.

Sent from my GT-I9505G using Tapatalk

SOHC4 Cafe Racer Fan · « **Reply #96 on:** August 30, 2015, 08:11:34 PM »

Sexy-looking motor. +1 on the re-torquing.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #97 on:** August 30, 2015, 08:31:35 PM »

Now for the fun part - dialing in the cam. ;-)

Bigsam302 · « **Reply #98 on:** August 30, 2015, 09:04:31 PM »

Yeah, I'm not looking forward to that part!

Sent from my GT-I9505G using Tapatalk

Konradwax · « **Reply #99 on:** September 01, 2015, 09:23:25 PM »

I want to see this bike run:)

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Author Topic: Re: Bigsam302's 76 CB750F (915cc): Project Helen – Running Report! (Read 60947 times)