Author Topic: Are these points still good? and how important is static timing? (Read 11608 times)

ChopSticks · « **Reply #75 on:** February 21, 2016, 06:51:27 PM »

Hmm that's strange based on my original pic and the updated one the continuity went off a few degrees forward of 1.4 / 2.3 marks. I got the continuity to switch off closer to the F mark for 1.4 but then it went passed the F mark for 2.3... If I file to get 1.4 to the F mark wouldn't this make 2.3 go even further than it already has?

mystic_1 · « **Reply #76 on:** February 21, 2016, 07:08:50 PM »

Oh, I see, your 1+4 is firing too early and your 2+3 is firing too late.

It's weird though, your picture of 2+3 in post #57 it looks like the points are already open by quite a bit, i can see a gap and they only appear to be touching in the center. Did you file them yet?

Open up the points with your finger and get us some pictures of the point faces and the rubbing blocks. Something's definitely not kosher, you shouldn't need to be filing open the slots to make it work.

Question, when the three securing screws on the main plate are loose, is there room to wiggle it side-to-side in the crankcase boses? It should be a snug fit there and not wander, that would throw things off.

mystic_1

ChopSticks · « **Reply #77 on:** February 21, 2016, 08:44:42 PM »

Hm, so basically when the continuity goes off is the exact time the points open?

I did file them, I'll try to take pictures tomorrow

http://s168.photobucket.com/user/CT90-CT110/media/PointsInspection2.jpg.html

but based on the image above, the previous points weren't completely flat but not like any of pictures, the closest one is probably the bottom right... but that's an over exaggeration, there was a raise on the bottom points about 1/20 the size of the whole point surface, like a little pimple. I filed as much as I could be couldn't get it perfectly flat. Probably better to file with with the points off? The top of the points did not have any corresponding indent like the pictures represent and was pretty flat

is there room to wiggle it side-to-side in the crankcase boses?

not exactly sure what this means, but when I loosened the 3 screens it was pretty stuck in there, I couldn't even rotate the plate freely, and to use quite a bit of force just to get it to loosen and rotate.

ChopSticks · « **Reply #78 on:** February 21, 2016, 08:46:08 PM »

Also, I know there's a lot of negative reviews about the daiichi points but is "DAIKHI NOS" the same type of brand? I couldn't find any reviews about it here

http://www.ebay.com/itm/HONDA-CONTACT-BREAKER-POINTS-PLATE-CB750-CB-750-CB750F-1969-1978-30200-300-154-/401024696899?hash=item5d5eef4243:g:ddgAAOSw5ZBWM41-&vxp=mtr

grcamna2 · « **Reply #79 on:** February 21, 2016, 09:45:46 PM »

Quote from: grcamna2 on February 21, 2016, 12:29:21 PM

I think for your first points/cond. replacement, a new oem Honda complete points plate(the one with the quality points on it,not Daichi)assembly which includes all the parts on it w/ new screws,etc. is a Very good choice. A used one off ebay will bring you right back to your same present situation

Why not just spend the extra for a complete oem points plate which includes everything so you won't need to worry for thousands of miles ? Replacing points and condensers separately can take a while and that's not taking into account the stripped screw heads,etc.; How much is your time worth ? Electronic ignitions can mess-up too and leave you stranded unless you have the HondaMan ignition box which still uses the original oem Honda points as a 'trigger' for the transistorized box.

ChopSticks · « **Reply #80 on:** February 22, 2016, 07:58:30 AM »

^Not sure who you meant to reply to, but if I replace the thing, it will definitely be the whole assembly, since the points and condensers appear to be a lot more separately. I was just wondering if Daikhi Nos was a comparative substitute since ND (Nippon Denso) was also recommended and it's not OEM

grcamna2 · « **Reply #81 on:** February 22, 2016, 08:16:09 AM »

Quote from: ChopSticks on February 22, 2016, 07:58:30 AM

^Not sure who you meant to reply to, but if I replace the thing, it will definitely be the whole assembly, since the points and condensers appear to be a lot more separately. I was just wondering if Daikhi Nos was a comparative substitute since ND (Nippon Denso) was also recommended and it's not OEM

I would stay away from that "Daikhi" name because it's most likely just a mis-spell of Daichi. Nippon Denso is Good quality also and if you found NOS TEC brand points you'd be doing great w/ that brand but it might be tough to find especially w/ a complete points plate.

flybox1 · « **Reply #82 on:** February 22, 2016, 08:24:13 AM »

Quote from: grcamna2 on February 22, 2016, 08:16:09 AM

Quote from: ChopSticks on February 22, 2016, 07:58:30 AM
^Not sure who you meant to reply to, but if I replace the thing, it will definitely be the whole assembly, since the points and condensers appear to be a lot more separately. I was just wondering if Daikhi Nos was a comparative substitute since ND (Nippon Denso) was also recommended and it's not OEM

I would stay away from that "Daikhi" name because it's most likely just a mis-spell of Daichi. Nippon Denso is Good quality also and if you found NOS TEC brand points you'd be doing great w/ that brand but it might be tough to find especially w/ a complete points plate.

+1
ND or TEC (Toyo Electrics Company) are what you want.

ChopSticks · « **Reply #83 on:** February 22, 2016, 01:37:08 PM »

Alright going to place an order within the next day, random question but are there any other OEM parts that I might need or eventually need (without actually knowing or seeing the bike) that I should order? Just a few bucks shy of their free shipping threshold so basically anything that I would eventually buy would be more cost efficient to just get it now. I currently have the whole TOYO points assembly and the points cover gasket in the cart

grcamna2 · « **Reply #84 on:** February 22, 2016, 01:45:31 PM »

Quote from: ChopSticks on February 22, 2016, 01:37:08 PM

Alright going to place an order within the next day, random question but are there any other OEM parts that I might need or eventually need (without actually knowing or seeing the bike) that I should order? Just a few bucks shy of their free shipping threshold so basically anything that I would eventually buy would be more cost efficient to just get it now. I currently have the whole TOYO points assembly and the points cover gasket in the cart

You found TEC?

that is tough;I hope the entire points plate is still all oem genuine. I think gaskets are a common item you'll need or oil seals for the cases..

flybox1 · « **Reply #85 on:** February 22, 2016, 01:46:22 PM »

I guess it depends on what vendor you are ordering from.
air/fuel/oil filter(s)
5.5mm fuel line
3.5mm fuel line (carb drain tubes)
motion pro carb sync tool
motion pro tappet adjuster tool

ChopSticks · « **Reply #86 on:** February 22, 2016, 01:51:07 PM »

Quote from: grcamna2 on February 22, 2016, 01:45:31 PM

You found TEC? that is tough;I hope the entire points plate is still all oem genuine. I think gaskets are a common item you'll need or oil seals for the cases..

Yeah TEC was the only thing I could find, there was one hitachi vendor, but almost everywhere else (motogrid, partzilla, hondaparts-direct etc) had toyo assembly. Are there situations where they would mix and match the brands?! was going to order these

http://www.gearhead.com/cruiser/parts/oem/honda.html?aribrand=HOM&s2=motorcycle#/Honda/CB750FA_%2878%29_MOTORCYCLE%2c_JPN%2c_VIN%23_CB750F-2200001/POINTS_%2b_ADVANCER/CB750F-78-JPN-A/2Y134102AE13410207A

Quote from: flybox1 on February 22, 2016, 01:46:22 PM

I guess it depends on what vendor you are ordering from.
air/fuel/oil filter(s)
5.5mm fuel line
3.5mm fuel line (carb drain tubes)
motion pro carb sync tool
motion pro tappet adjuster tool

do you know the OEM number for the T barb / connector that divides the one hose fuel into two separate hoses for the carbs? can't find it on any parts pages

flybox1 · « **Reply #87 on:** February 22, 2016, 01:56:09 PM »

check part #'s on cmsnl.com
Any will work, really, if it fits your fuel line.
You could even go to the hardware store to get one for the change under your car seat.

ChopSticks · « **Reply #88 on:** February 22, 2016, 02:03:29 PM »

Surprisingly no hardware stores around me carries them that small (5.5mm or 1/4) I tried two home depots and 2 mom and pop shops.

and aren't getting any better catches from cmsnl

http://www.cmsnl.com/honda-cb750f-750-super-sport-1978-usa_model7240/partslist/F++13.html#results

http://www.cmsnl.com/honda-cb750f-750-super-sport-1978-usa_model7240/partslist/E++20.html#results

Figured if there was an OEM number I could just add it to my purchase since their aftermarket area doesn't have the greatest selection

flybox1 · « **Reply #89 on:** February 22, 2016, 02:15:44 PM »

where are you ordering from?
I know Z1 enterprises has a big selection...

ChopSticks · « **Reply #90 on:** February 22, 2016, 02:27:25 PM »

gearhead.com

z1 didn't have the stock OEM points assembly

grcamna2 · « **Reply #91 on:** February 22, 2016, 02:38:12 PM »

Quote from: ChopSticks on February 22, 2016, 01:51:07 PM

Quote from: grcamna2 on February 22, 2016, 01:45:31 PM

You found TEC? that is tough;I hope the entire points plate is still all oem genuine. I think gaskets are a common item you'll need or oil seals for the cases..

Yeah TEC was the only thing I could find, there was one hitachi vendor, but almost everywhere else (motogrid, partzilla, hondaparts-direct etc) had toyo assembly. Are there situations where they would mix and match the brands?! was going to order these

http://www.gearhead.com/cruiser/parts/oem/honda.html?aribrand=HOM&s2=motorcycle#/Honda/CB750FA_%2878%29_MOTORCYCLE%2c_JPN%2c_VIN%23_CB750F-2200001/POINTS_%2b_ADVANCER/CB750F-78-JPN-A/2Y134102AE13410207A

Quote from: flybox1 on February 22, 2016, 01:46:22 PM
I guess it depends on what vendor you are ordering from.
air/fuel/oil filter(s)
5.5mm fuel line
3.5mm fuel line (carb drain tubes)
motion pro carb sync tool
motion pro tappet adjuster tool

do you know the OEM number for the T barb / connector that divides the one hose fuel into two separate hoses for the carbs? can't find it on any parts pages

When you get parts from an actual Honda dealer they won't mix n' match parts like ebay,etc.

flybox1 · « **Reply #92 on:** February 22, 2016, 02:49:10 PM »

Did you look for the T or Y connector in brass? 1/4"
My Lowes and Home Depot have these by the hundreds

ChopSticks · « **Reply #93 on:** February 22, 2016, 02:51:53 PM »

Quote from: grcamna2 on February 22, 2016, 02:38:12 PM

When you get parts from an actual Honda dealer they won't mix n' match parts like ebay,etc.

would gearhead.com be considered an actual Honda dealer? or do I need to go to an actual brick and mortar shop? because my local shop quoted me $150 for the assembly

Quote from: flybox1 on February 22, 2016, 02:49:10 PM

Did you look for the T or Y connector in brass? 1/4"
My Lowes and Home Depot have these by the hundreds

Yes two Home Depots, finally found one with a 1/4 t "connector" but then needed to buy 3 individual 3/16-1/4 brass barbs to fit into the connector which ran around $15 when I know motion pro makes one for $5. Just wondering if there was an OEM number so I can just order it from this vendor directly

flybox1 · « **Reply #94 on:** February 22, 2016, 02:59:37 PM »

http://www.hondabikes.com/fiche_select.asp

ChopSticks · « **Reply #95 on:** February 22, 2016, 03:08:07 PM »

Quote from: flybox1 on February 22, 2016, 02:59:37 PM

http://www.hondabikes.com/fiche_select.asp

thanks but still no OEM part number reflected for the T/Y connector barb. And that site is more expensive than gearhead with shipping

grcamna2 · « **Reply #96 on:** February 22, 2016, 03:21:04 PM »

That gearhead.com has oem Honda original parts;when you look up the parts you can use the online parts description parts breakdown which gives you the Honda part #. Can you buy the complete points plate assembly w/ a Honda part#? if that's the case then Yes,it's original oem right on the diagram

ChopSticks · « **Reply #97 on:** February 22, 2016, 03:24:07 PM »

Perfect, I thought you may have been implying there could be shady online vendors out there that even though they have the nice OEM parts diagram and set up that would possibly switch out some assorted parts on the points assembly

flybox1 · « **Reply #98 on:** February 23, 2016, 11:06:21 AM »

Didnt the '74 tanks come with dual (downward) outlet petcocks?
It may be that your PO installed a different petcock, or, you have a later tank with only one petcock outlet.

ChopSticks · « **Reply #99 on:** February 23, 2016, 12:08:27 PM »

no I have a '74 tank with a 78F engine. But the tank and petcock are definitely '74. I needed the T barb (fuel joint) for an auxiliary gas tank I bought for carb syncing that only has one hose

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Author Topic: Are these points still good? and how important is static timing? (Read 11608 times)