Author Topic: Nicklopic's CB650 cafe thing (Top end build with modern suspension)  (Read 20118 times)

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Offline PeWe

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Re: A "custom" CB650 custom
« Reply #100 on: April 04, 2020, 12:05:13 AM »
Eow, That's a good looking exhaust man.
Kemp at Ripple Rock is a great guy to work with too.
Those exhausts have a really good tight fit and very light! No reason using expensive titanium, use a Hindle and skip one sandwich. :D

I have one on my CB750.
Kemp has been very service minded and helpful. A really great guy.

You'll love the sound, your neighbours too when you handle the throttle with care. Out on the road when giving full, it sings really nice!!!
Or between the houses in the city.  Look for the guys with juice blenders on the car roofs. They will hear you!
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #101 on: April 05, 2020, 05:51:00 PM »
HEY GUESS WHAT
I rode it today! Nothing crazy, about 2 miles. Just a couple laps around the block. Nothing wild, but God damn was it satisfying. My neighbors probably didn't enjoy it as much as I did since I didn't bother with the muffler
I assembled everything and got to see it all in one piece and God damn does she look fineeeeee lol
I also made the guide for the chain. I used the UHMW because that showed up days ago and I haven't gotten the TL guide yet. But it works great. Does exactly what it's intended too. I made a support tab for the monoshock, an old tab and a piece of plate I welded up. I drilled and helicoiled the swing arm and bolted said bracket down.
80' CB650
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #102 on: April 05, 2020, 05:51:36 PM »
#2
80' CB650
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #103 on: April 05, 2020, 05:52:33 PM »
I did 3 separate posts for the pictures so I could keep the resolution just a little better
80' CB650
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Offline SOHC4 Cafe Racer Fan

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Re: A "custom" CB650 custom
« Reply #104 on: April 05, 2020, 10:38:19 PM »
Congrats!  I hope you have a blast riding it.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline DaveBarbier

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A "custom" CB650 custom
« Reply #105 on: April 06, 2020, 04:20:17 AM »
Yes! Awesome, feels good to take the first tip around the block. Love the finish on the engine covers.

Offline SOHC4 Cafe Racer Fan

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Re: A "custom" CB650 custom
« Reply #106 on: April 06, 2020, 09:38:23 AM »
Nick,

What is the difference in length between the original swingarm and the new one?  Between the front end swap and the rear swingarm, I'm curious as to how this bike handles.  Please share a ride report once you give it some spirited rides.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #107 on: April 06, 2020, 03:37:57 PM »
If anyone's got the measurement of a stock swing arm feel free to drop it. The original is burried at the moment and Im way too lazy to dig it out right now lol
The TLs swing arm is about 20.25" from pivot to rear axle as it sits now. I'm prepared for needing offset triples but I'll cross that bridge when I get to it. I do need to sit down and check rake and trail but I only just got the rear together
80' CB650
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Offline SOHC4 Cafe Racer Fan

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Re: A "custom" CB650 custom
« Reply #108 on: April 06, 2020, 06:56:32 PM »
If anyone's got the measurement of a stock swing arm feel free to drop it. The original is burried at the moment and Im way too lazy to dig it out right now lol
The TLs swing arm is about 20.25" from pivot to rear axle as it sits now. I'm prepared for needing offset triples but I'll cross that bridge when I get to it. I do need to sit down and check rake and trail but I only just got the rear together

Did you simply make a shock mount and use the TL donor shock, too.  I have no knowledge of the dark art of suspension set up, but I am curious what adjustments you may or may not need to make this all function and handle well in the twisties.  It looks cool.
1975 CB550K1 "Blue" Stockish Restomod (http://forums.sohc4.net/index.php?topic=135005.0)
1975 CB550F1 frame/CB650 engine hybrid "The Hot Mess" (http://forums.sohc4.net/index.php/topic,150220.0.html)
2008 Triumph Thruxton (http://forums.sohc4.net/index.php/topic,190956.0.html)
2014 MV Agusta Brutale Dragster 800
2015 Yamaha FZ-09 (http://forums.sohc4.net/index.php/topic,186861.0.html)

"There are some things nobody needs in this world, and a bright-red, hunch-back, warp-speed 900cc cafe racer is one of them — but I want one anyway, and on some days I actually believe I need one.... Being shot out of a cannon will always be better than being squeezed out of a tube. That is why God made fast motorcycles, Bubba." Hunter S. Thompson, Song of the Sausage Creature, Cycle World, March 1995.  (http://www.latexnet.org/~csmith/sausage.html and https://magazine.cycleworld.com/article/1995/3/1/song-of-the-sausage-creature)

Sold/Emeritus
1973 CB750K2 "Bionic Mongrel" (http://forums.sohc4.net/index.php?topic=132734.0) - Sold
1977 CB750K7 "Nine Lives" Restomod (http://forums.sohc4.net/index.php?topic=50490.0) - Sold
2005 RVT1000RR RC51-SP2 "El Diablo" - Sold
2016+ Triumph Thruxton 1200 R (http://forums.sohc4.net/index.php/topic,170198.0.html) - Sold

Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #109 on: April 06, 2020, 07:39:29 PM »
So the TL1000s use a weird rear suspension. It has a damper, and a spring carrier. No monoshock. The shock I'm using is from a car 929rr. It has adjustable bump and rebound and a res. It's a linkage set up on the 929 so the spring might be a bit too stiff, however I do have the the monoshock at an angle which should decrease the effective spring rate and dampening. By how much? Who knows. Ill get to it. It has travel numbers that work great so I can always have a new spring made from Pac or someone. First impressions seem like it'll be okay though.
I'm by no means an expert and barely have a clue what I'm doing with any of it. I'm learning as I go and just winging it lol
80' CB650
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Offline DaveBarbier

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A "custom" CB650 custom
« Reply #110 on: April 07, 2020, 04:15:33 AM »
Rake, trail and offset is a whole other thing and I would recommend to get as close to the stock 550 as you can. I had Devin at CognitoMoto make me custom triples so my bike has the same geometry as stock. I can see your bike is leaning forwards but no idea if that will affect anything in a detrimental manner. But this is with you off the bike, it might level out when you get on it.

As far as setting up preload and sag for your weight it’s not that hard. Here’s what I followed on race tech’s website.

https://www.racetech.com/page/id/30#3

Offline Old Scrambler

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Re: A "custom" CB650 custom
« Reply #111 on: April 07, 2020, 06:05:53 AM »
This build caught my eye...........Good advice on suspension ;)..........hope the 'muffler' will be short ala CB500X
Dennis in Wisconsin
'64 Triumph Cub & '74 Honda CB750 Bonneville Salt Flats AMA Record Holder (6)
CB750 Classic Bonneville Racer thread - http://forums.sohc4.net/index.php/topic,135473.0.html
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #112 on: April 18, 2020, 06:34:02 PM »
I've gotten a little bit done lately, been waiting on parts and trying to deal with online classes for school. Not a fan of those at all.
But I got the offset sprocket from D&G. It's... Okay, it's a bit rough and it seems the retainer plate was an afterthought because there's no way I can use said retainer without cutting it down which worries me a little. But I have ideas. I did some other stuff little stuff, but I didn't snap any pictures so I'll get to that another day.

****But I need some advice on my rear master res. I'm wondering if it's location in the second photo is high enough since there will be a little bit of a bend in the hose. I do also have the res shown in the 3rd photo that I could use, it would probably straighten said bend out while mounted at the same height.
80' CB650
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #113 on: June 22, 2020, 08:58:10 PM »
 So I got my swing arm back from my friend Thursday. Today I got it all assembled again. He did an awesome job, the tab he made by hand and is like perfectly symmetrical. He used 4943 filler rod incase anyone wants to know for their own projects. Also shameless plug, if you need fab work done on long island, he's a good dude. Has an engineering degree and super hands on and works timely. His Instagram is https://instagram.com/otties_metal_talk?igshid=wpoj8l5vs0ht
I got a new plate mount that replaces the axle slider block so it's all sleek. Now using an RK 520 X-ring chain. The chain cover was cut and clearance to clear the big offset.
Now the bad news, I'm a moron and didn't attach my messnermoto filters right and lost one on my test ride at dusk. Rerode my route and couldn't find it. I'm pissed. Ill look some more tomorrow. Stalled out on the way home, probably from running like #$%* without a filter and the starter acted up. Super sluggish to turn over had to push it a few hundred feet and it end up cranking and firing after a few more tries. Might need to look into that a bit.
80' CB650
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Offline DaveBarbier

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Re: A "custom" CB650 custom
« Reply #114 on: June 24, 2020, 04:24:05 AM »
Dude, looks awesome. Bummer about the filter though!

Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #115 on: June 24, 2020, 05:27:09 AM »
Would you believe I actually got it back? Lol
I took pictures of the filters and traced my route out and posted it on some neighborhood Facebook page with a $20 reward. Yesterday afternoon a lady messaged me after finding it intact! Even delivered it to my job! Apparently she found it on my own street in a ditch lol
80' CB650
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Online RAFster122s

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Re: A "custom" CB650 custom
« Reply #116 on: June 24, 2020, 09:09:03 AM »
Nick, great news and very lucky. There are good people out there and with all the ugliness of late I think many are drawn to make a difference for the good.
David- back in the desert SW!

Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #117 on: June 24, 2020, 04:21:15 PM »
Personally I just think she was enticed by the $20 but I don't give a dang what her motivation was because it worked out for both of us haha

Also, where do you guys like to get jets? JetsRus? I'd like to order a few mains because I'm definitely lean at WOT
80' CB650
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #119 on: June 25, 2020, 10:16:14 AM »
Yeah, I like Mike at Jets R Us, he’s a good guy.
Littt, I ordered 3 steps of mains and 1 step in pilots so I have them. I know the mains are a lean, a little choke helps up high but things are obviously off. Wideband will get hooked up by the weekend so I can see how the AFRs really are
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Offline DaveBarbier

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Re: A "custom" CB650 custom
« Reply #120 on: June 26, 2020, 04:11:51 AM »
There’s always the option of going to a dyno :) Like Rick Stetson up in Northborough, MA.

Offline MRieck

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Re: A "custom" CB650 custom
« Reply #121 on: June 26, 2020, 06:45:30 AM »
There’s always the option of going to a dyno :) Like Rick Stetson up in Northborough, MA.
That certainly takes the guess work out of it. Rick knows what he is doing.
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #122 on: June 26, 2020, 09:02:59 AM »
I'll end up having it dyno tuned eventually but I know I'm going to want to ride it a lot so I want it in the ballpark. Plus I need to make sure there's not unforseen issues but I don't want to be worried about melting a piston while doing so lol

I also want to order the powerarc cable so the timing curve can actually be modified when tuning happens
80' CB650
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Offline Nicklopic

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Re: A "custom" CB650 custom
« Reply #123 on: June 27, 2020, 05:54:55 PM »
While looking at another topic and playing on C5s website it seems C5 says the old ignitions don't like temperatures above 200°... Kind of ridiculous given its supposed to be stuffed inside a semi air tight compartment on an air cooled bike but whatever. I ordered a ignition cover and a sheet of unifoam. I think I'll try to cut an air inlet and outlet to try to keep the module cooler before any issues possibly arise since summer is here. Plus I need to recover the pod that took a tumble the other day to fix a couple knicks lol
Tomorrow I'm going to get my wideband set up, jets should be showing up Monday so I can toss those in once in.

Currently my carbs are only bench synched, should I be synching them everytime I change jets? (I have the motionpro synch set on my shelf, just haven't used it yet)
80' CB650
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Offline DaveBarbier

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A "custom" CB650 custom
« Reply #124 on: June 28, 2020, 05:45:54 AM »
I think I forgot you’re using the C5. Oh man, after my problems with it I’m really hoping yours works! Keep in mind I still have my kits to fit the Dyna S ;) If you remember mine was shutting off after about 1 hour into a ride at like 85° outside temp and up. Eventually it failed completely and I went with the Dyna and it’s been working perfectly.

As far as playing with the ignition curves I only tried the 4 built in ones. And at the dyno we found that the least aggressive map gave the most power. That’s the default map 1. But I think I remember member h.lanooy did dive pretty deep with custom mapping and got some good power.

Regarding the carbs, no need to sync every time you swap jets. Only when you play with the needles/slides.

Are you in the city or are you more upstate? Maybe sometime we could get a ride going. But I ain’t riding into the city, haha