Author Topic: Bike died. Might be the end of it. (Read 24584 times)

coke · « **Reply #125 on:** May 02, 2011, 05:39:31 PM »

I just started reading this thread. SOHC thoughts with you. If you can get through this I will know that I can do the same if something happens to my 350. you are a hero in my book. hang with it.

magconpres · « **Reply #126 on:** May 02, 2011, 07:45:15 PM »

I love this thread! It reads like a good novel, or at least like a Grimm's Brothers tale.

Our Hero, AJ, starts out looking for some cheap practical transportation to use while he betters himself in college. Johnny buys a classic motorcycle , but little does he know what really lurks beneath it's SOHC appeal.
As Johnny discovers that he was taken advantage of by an unscrupolous forum member, his loved ones beg him to give up his vintage bike dreams and get something with a warranty...maybe a Kia would be nice.
By it's too late for Johnny. He has discovered the good side of classic motorcycling. People he doesn't even know when monikers like HondaMan and Roach Carver are coming to his aid and encouraging him to continue his quest for cheap transportation and the joy of riding a 70's Honda. He discovers a local underground club where people fix bikes for free...yes, Johnny is in...there is no turning back...

With help from his new friends, Johnny puts his bike back together. He will get it back on the road, and in the end his loved ones will come to see this CB750 is much more than just transportation for Johnny, it had become part of his identity. He has become one of those classic motorcycle guys that know what a carburetor is and how to adjust points. ....and they are happy for him.

Good luck Johnny...you're almost there!

Anti-Johnny · « **Reply #127 on:** May 02, 2011, 08:12:00 PM »

I've learned a lot. Not the least of which to appreciate guys like you all and the guys at the co-op.

Learned a lot from this bike for sure. Especially that just because a bike runs doesnt mean its worth the price tag.

Anti-Johnny · « **Reply #128 on:** May 07, 2011, 03:12:06 PM »

Alright, I had a few hours today and a ride, so I went up to Austin and got some more done. I was a little worried I wouldnt be able to get the front lower engine bolt in. But I did it pretty easily.

The frame has a little bend right where the bolt comes through. So someone hit something pretty hard there after the engine was out last, because the bolt was bent as well. No it wasnt me. Wish I had noticed this one before.

anyway, got all sorts of little bits and the oil tank and lines on the new engine.

I have a little tap set. Its got 6mm, 8mm, 10mm and I think a 12mm tap in there and the hand drill. Would I use the 6mm to try and remake these holes? or the 8mm? 8mm seems too big. and which size bolt then would I put in there? $:-\$ I guess I can buy the standard tap size mentioned above. The three holes that need to be redone are accessible with the tank off and the engine in the frame.

If I cant figure out the bolts then the jb weld trick will have to do for now. I have this coming saturday to finish it and then I have to scramble to get everything together for my trip.

Stev-o · « **Reply #129 on:** May 07, 2011, 05:36:59 PM »

Can't wait 'till you get this fired up!

Good luck...

Hush · « **Reply #130 on:** May 08, 2011, 12:25:23 AM »

Keep at it AJ, guys all around the world are watching this thread with fingers crossed for ya.

magconpres · « **Reply #131 on:** May 08, 2011, 09:07:27 AM »

Quote from: Hush on May 08, 2011, 12:25:23 AM

Keep at it AJ, guys all around the world are watching this thread with fingers crossed for ya.

+1

Anti-Johnny · « **Reply #132 on:** May 08, 2011, 07:58:23 PM »

I really appreciate the support!

It makes this thing a lot easier. We will know soon if I was crazy to try it, in which case you are all guilty of encouraging lunacy. I guess thats what the site is all about though. The unreasonable love for old bikes.

I'm still not sure on those screws that need to be tapped. the part shows 6x60. would it be crazy to use the 8mm tap? or see if I can get the standard size for cheap?

scottly · « **Reply #133 on:** May 08, 2011, 08:17:04 PM »

Get a USA size 1/4"x 28 tap at Ace Hardware, and 1/4"x 28 bolts in the length you need. You may need to modify the tap with a grinder to make it fit though the holes in the valve cover, as well as cut threads deeper in the hole than the "stock" tap. (what you need is a "deep hole, bottom-cutting tap", but I doubt you will find one at Ace..)

MoMo · « **Reply #134 on:** May 11, 2011, 03:55:48 AM »

Quote from: Anti-Johnny on May 08, 2011, 07:58:23 PM

I really appreciate the support!

It makes this thing a lot easier. We will know soon if I was crazy to try it, in which case you are all guilty of encouraging lunacy. I guess thats what the site is all about though. The unreasonable love for old bikes.

I'm still not sure on those screws that need to be tapped. the part shows 6x60. would it be crazy to use the 8mm tap? or see if I can get the standard size for cheap?

Yes, it would be crazy to go to 8mm-too big. Keep the faith, I am sure you will come out on top...Larry

Really? · « **Reply #135 on:** May 11, 2011, 08:51:49 AM »

I have the shakes here waiting for an update AJ. I need my fix!

Radam · « **Reply #136 on:** May 11, 2011, 09:36:43 AM »

Good luck man! I wish I had a motorcycle co op around me. My friends and I do kind of the same thing, but it's not near as big as the one there.

coke · « **Reply #137 on:** May 11, 2011, 04:17:16 PM »

Quote from: Radam on May 11, 2011, 09:36:43 AM

Good luck man! I wish I had a motorcycle co op around me. My friends and I do kind of the same thing, but it's not near as big as the one there.

Radam, we need to set something up like that huhn.. oh.. wait .. you are heading to Australia..

HondaMan · « **Reply #138 on:** May 11, 2011, 04:33:38 PM »

Quote from: scottly on May 08, 2011, 08:17:04 PM

Get a USA size 1/4"x 28 tap at Ace Hardware, and 1/4"x 28 bolts in the length you need. You may need to modify the tap with a grinder to make it fit though the holes in the valve cover, as well as cut threads deeper in the hole than the "stock" tap. (what you need is a "deep hole, bottom-cutting tap", but I doubt you will find one at Ace..)

I have successfully made these taps by grinding off the end of a standard 2-flute tap in a pinch. Some of them are now 10 years old!

Anti-Johnny · « **Reply #139 on:** May 11, 2011, 05:04:46 PM »

No updates really. Just finished finals today. So hopefully I can get out tomorrow and see if I can find some taps. I dont think there is an Ace Hardware anywhere close. Ill check the other comparable places out.

I am headed up to Austin Saturday to try and finish everything. If any of you local guys have 20 minutes or an hour free, I'll be around. There are no foreseeable problems as of yet. Just need to put on the exhaust and fill it with oil and try it. Electrical worked all right before so as long as I can figure out how to put it back together I expect it to do the Kessel Run in 12 parsecs.

Each day is closer to my trip. I received my tent and sleeping bag. Everything is almost setup. Just have to put this sack of bolts on the road.

but with Finals over, I have purchased some beer and fried chicken, curled up with my dog and we're watching Torchwood tonight.

Stev-o · « **Reply #140 on:** May 11, 2011, 05:40:19 PM »

AJ - go to Austin Tool to get the tap, it's about 10 min from the co-op:

Austin Tool
210 Industrial Boulevard, Austin, TX 78745-1261
Hours: 7:30 AM - 5:00 PM
(512) 447-4905

Sorry, can't help this Sat, I'll be in Florida.

scottly · « **Reply #141 on:** May 11, 2011, 05:55:34 PM »

I'll try to post pics tomorrow of both "stock" and modified taps, so you can see what Hondaman and I are talking about. Do you have a bench grinder at the co-op?

TwoTired · « **Reply #142 on:** May 11, 2011, 06:04:02 PM »

For tapping blind holes (entry, no exit) machinist's use three taps.
This from Machinery's Handbook 22nd Edition Later editions may vary
Taper Taps are chamfered 7 to 10 threads
Plug Taps are chamfered 3 to 5 threads
Bottom Taps are chamfered 1 to 2 threads

Anti-Johnny · « **Reply #143 on:** May 12, 2011, 02:03:50 PM »

I would appreciate the pics of the modified taps. I will get to Austin early saturday to get to Austin Tool and see what they've got. I dont think the co op guys have a grinder. Maybe they have a dremel tool though?

scottly · « **Reply #144 on:** May 12, 2011, 05:31:59 PM »

Plan B: The holes are drilled and tapped about 9-10 mm deeper than the 60mm screws (which actually measure about 62 mm). The two screws at the rear of the breather cover (see the first pic) are about 74 mm. The second pic shows one of these screws bottomed out in a hole meant for a 60 mm screw; the head is .150" from the cam cover. The simple solution would be to use .160" worth of washers in this case. Steal the screws from your old motor. Not sure where to find a third longer screw; perhaps the starter motor?
In any case, I would worry more about just starting up the motor for the time being.

Roach Carver · « **Reply #145 on:** May 12, 2011, 05:45:59 PM »

Quote from: scottly on May 12, 2011, 05:31:59 PM

In any case, I would worry more about just starting up the motor for the time being.

what he said!! plus if the valve cover is leaking you will know theres oil in there.

mjstone · « **Reply #146 on:** May 12, 2011, 06:58:19 PM »

Why not just cut the bolts shorter? Easy to do with a dremmel and a cut off wheel.

MJ

Anti-Johnny · « **Reply #147 on:** May 12, 2011, 07:01:38 PM »

I'll have to source those bolts. The valv cover on this "complete engine" that I bought was only held on by a couple bolts that came from something else. I am pretty sure one is for wood...

Any of you Austin guys know of a bolt and screw shop in the south?

scottly · « **Reply #148 on:** May 12, 2011, 07:10:36 PM »

Worst case, I can send you some screws, already modified. Get that puppy fired up this weekend!!!

Anti-Johnny · « **Reply #149 on:** May 12, 2011, 07:14:13 PM »

yeah thats the plan. I dont expect it to leak too much. only a couple screws are jinky. I did super loctite the exhaust bolts into the engine last time I had the exhaust off. That is the only thing I am nervous about at the moment. The carbs came off fairly easily. Might be taking the girlfriends hair dryer to soften them up in case they dont pop on.

There is a ground cable and the one that goes to the battery, I need to also get into the manual and find out where that goes. Wasnt paying attention in the scramble to get the bike out.

News:

Author Topic: Bike died. Might be the end of it. (Read 24584 times)