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Author Topic: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)  (Read 351364 times)

Offline Sonreir

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  • Oregon
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #730 on: May 08, 2013, 11:59:40 »
My issues were mainly self-inflicted.  Shaved too much metal off the head.  The first machinist did a hack job so I had to take it to a second one to get it right.

I'm running .032" on head and base gasket now, but I still need to check clearances.  Too busy working on other things right now, though.  :(
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline crazypj

  • Posts: 13454
  • Split personality, I fake being smart
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #731 on: May 08, 2013, 15:52:40 »
You have a CJ so it will be a much later motor, let us know if you have clearance issues?
 I have a special fly cutter I made to enlarge combustion chamber on CJ250 when I did the 390 conversion (14mm overbore)
Problem is, I couldn't find it when I was in Britain last year
I've made a fixture to hold pistons in lathe to reduce crown height, also has the benefit of making them slightly lighter
 I've just bought a pair of XS400 DOHC pistons off eBay to experiment with, won't be here until next week
Stock XS400 will give a very low compression ratio as piston has a 'flat' top and really wide top land, the dome is way too large on DOHC piston to use in CB360 without machining (I looked into this about 7 yrs ago when I did a 522cc XS'400')
 The GS 850 pistons were pretty easy to come by then so I gave up on all the extra work with Yamaha pistons
As I'm having pretty major back surgery next week it will be a few months before I'll know if it works
« Last Edit: May 08, 2013, 15:54:40 by crazypj »
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline Sonreir

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  • Oregon
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #732 on: May 08, 2013, 15:54:24 »
If that's the kind of work you'd be looking to do for others, please let me know.  I'd like to reduce the width of my base gasket so I can get my squish back.  Running .045" below deck right now.  :(
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline crazypj

  • Posts: 13454
  • Split personality, I fake being smart
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #733 on: May 08, 2013, 15:56:58 »
It's probably going to be 3 months before I really know how surgery went, surgeons office just called as I have pre-op testing tomorrow
 If everything is good I'll probably be scouring eBay for DOHC pistons  ;D
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline Sonreir

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  • Oregon
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #734 on: May 08, 2013, 15:58:24 »
Fingers crossed for you.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline neevo

  • Posts: 2236
    • The blog of my custom CB400F build
CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #735 on: May 08, 2013, 17:53:54 »
Fingers crossed for you.

Yeah good luck on the surgery PJ, fingers crossed it improves things greatly for you.


See the condensed version of my full build on my blog!

Offline mattfeet

  • Posts: 480
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #736 on: May 11, 2013, 23:17:11 »
I just read through this entire build thread...fantastic work PJ. Hope your surgery goes well and I can't wait to get my 378 build off the ground!!!!

-Matt
DTT Blue CB360 Club - We discriminate!

1976 Candy Sapphire Blue Honda CB360T
http://www.dotheton.com/forum/index.php?topic=46077.0

Offline crazypj

  • Posts: 13454
  • Split personality, I fake being smart
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #737 on: May 12, 2013, 20:00:26 »
More issues, although now fixed
Brendon's bike was running either totally awesome or real crap
Kept dropping a cylinder for unknown reason then would come back on two and run fantastic. (115+)
Ended up re-wiring a CB400T rectifier/reg into circuit replacing the original separate units
Charging 13.6 volts at idle, tops out at 14.52 V
Pulled coils off this morning, found a major issue with one of them.
Something has bubbled out from the inside around the center core laminate, probably the internal insulation
I'll probably cut it up to take a look inside.




HT lead is towards rear of tank tunnel so probably got hotter than the 'rear' which gets some airlow
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline Brodie

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Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #738 on: May 12, 2013, 20:04:18 »
I had that exact same problem with my first car. Sure enough the coil was toast. The stuff inside it is the insulation and from what I gather it was grounding itself out before letting much of a charge through.
I'm not sure, but don't ask Brodie.

Way to many build and half done projects to list here.
Sr250, Gs750, Z50A, XV1100, A10, Z160A.

Offline crazypj

  • Posts: 13454
  • Split personality, I fake being smart
Re: CB360's-from build to blog - 2013, MDS (Mo Dumb Shit)
« Reply #739 on: May 13, 2013, 15:38:36 »
I've postponed the surgery until next month, couldn't afford to have any issues with FMLA
 wife needed to make sure everything is in writing rather than just 'OK, your good to go'
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0