Author Topic: What did you do to your bike today ?  (Read 1570438 times)

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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27925 on: June 12, 2019, 03:01:51 pm »
So..... The Kerker is on, the CR31 Special carbs are on, everything (all loose wiring I could find) is hooked up, battery is charged, 3.75qt Castrol 4T oil added with the first 2 quarts going down the valve cap holes, tank located, plugs loose for initial oil pressurization.

Gotta install the throttle cables and gas the #$%* up!!  ;D ;D ;D Oh yeah, check the ignition timing on the Dyna 2000.

Beer30 now. Video tomorrow (maybe, depends on the bike and the video posting BS).
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Stev-o

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Re: What did you do to your bike today ?
« Reply #27926 on: June 12, 2019, 04:43:08 pm »
If I could take them with my PC then it would be easy. They are on my phone and I do not transfer to my computer. Do you have an easy method?

Join flickr.com Jerry, even better than Photofukit.  Snap a pic on your iphone and then share it directly to your Flickr acct.

https://www.flickr.com/
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27927 on: June 12, 2019, 06:14:13 pm »
Android too? Copy and paste link like Photofukit? Forgot about Flickr. Thanks

Looking promising except the battery. Shows 12+/13+ coming off the Tender, hit the starter, turns fairly slowly then the voltage drops to mid 11's. Load test it tomorrow and replace it, install some gas and hit the starter. It is turning albiet slowly. Need better rpms to get the oil pressure up. O'Reilly's has an AGM battery with 220 CCA.
« Last Edit: June 12, 2019, 06:18:14 pm by Jerry Rxman Griffin aka MuthaF'er »
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27928 on: June 13, 2019, 01:32:04 pm »
Throttle cables installed. Don't like the feel but it will do for now.

Took the battery to O'Reilly's for a load test. He put it on HIS charger for 28 minutes and it tested good. Back home I installed it. Turns over better but not as fast as the 1000. Second pull the pressure popped!

Still need to set the timing advance. Waiting on info for that. Replace the plugs and attach the wires. Running outta #$%* to do except for the starter button.

Anticipation and a gas tank.

As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline MD

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Re: What did you do to your bike today ?
« Reply #27929 on: June 13, 2019, 05:53:35 pm »
Removed the rear tire on the '85 GL1200A.  Required some metal work on the left side exhaust to allow the axial to pass underneath.  If the muffler section was 1/4" shorter, the axial would have had clearance.  Research on the web stated that stock mufflers do not block the axial.   Date stamp on the tire indicated it was 10 years old. 

-MD
1975 CB550F Super Sport;  Lake Superior Circle 1000, 45-90 Saddle 1000, and All in Yooper 1000.  IBA rides
1985 GL1200A

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27930 on: June 13, 2019, 11:09:25 pm »
It lives!  ;D

Took a bit to get it started. Battery ran down even with headlight fuse pulled. Strong gas smell. Dyna 2000 ignition dialed in. I don't believe the battery is as "good" as the guy says so that will be replaced. It's old for a motorcycle battery even if it stays on a Tender. Just wasn't running properly YET. Sounds solid. No smoke. No leaks. Tight. No chain rattles. No clutch rattle. I should replace the plugs. Not hitting right on all 4 YET. Expect a battery will help that. Exhaust temps not consistent across all 4 with #4 relatively cool compared to the others and it was spitting out gas fumes from the carb intake. Oh yeah, no pod air filters mounted yet. 

Next up: insure the top end is oiling properly ; check valve clearances ; replace battery and plugs ; work on throttle to loosen up return ; check, set and sync carbs

Close

Oh, and my Flickr has gone Photo#$%*it on me. Still can't do pictures or videos. Too much to wrap my head around with the bike work. "You have 2000+ auto uploaded photos and the NEW Flickr free account limit is 1000". I sent a request for my info so I can off-load them. They said they would delete them if I don't pay their ransom to go ULTRA or PREMIUM or whatever. I still can't find the damned link to copy and paste either!!
« Last Edit: June 13, 2019, 11:14:41 pm by Jerry Rxman Griffin aka MuthaF'er »
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27931 on: June 14, 2019, 03:15:38 am »
Good work Jerry, re: the fuel spitting out of one carb, check your inlet valve clearances, I had the same problem last weekend on my "Swamp Rat" build, I'd muffed the inlet clearance on #1 and only had 50 psi on that cylinder, so I re-did it, and (with new rings not bedded in) immediately got 120 psi, and no more fuel spitting out of that carb. Make sure you upload a video to youtube of that bike running, it sounds like a beast! ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

Offline PeWe

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Re: What did you do to your bike today ?
« Reply #27932 on: June 14, 2019, 03:38:07 am »
315 cam has and should have huge valve lash. 0.3mm (0.012")
Less lash will give more overlap, less compression and less power. I tested various lash settings one year ago on my DP315 cam. I guess really high compression pistons can use less lash.

Really rich stinking idle can be floading floats.  My K2 with stock K6 carbs smoked worse than Bob Marley due to my 25mm float settings. 26mm OK.

My old smoothbore 29's smoked too. Clear tube verified cause and when sorted.
This smoking consume some plugs...
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27933 on: June 14, 2019, 11:22:02 am »
Thanks Slim. Checking clearances is top on my list right after battery.

Pewe this one has the Megacycle 125/75 cam. My card says lash = .005" intake and exhaust. Much easier to do on the bench  ;) After checking clearances again I am going to investigate the CR31's. #2 had a sticky float and overflowed. A quick rap on the bowl solved that but it tells me to look inside the bowls.

Gotta get my ass off here and to the battery store. Later news. 
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline PeWe

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Re: What did you do to your bike today ?
« Reply #27934 on: June 14, 2019, 01:09:44 pm »
Aha 125-75!
I mixed up with another build then.
Adjust with valve cover off much easier (see which rockers that are on base circle and lash) than thru the small tappet holes. Last time I bent the feeler gauge to fit easier. It broke, luckely outside engine. I'll remember for next time.

I set my RC295 profiled cam 0.10mm IN,  0.15mm EX
 (0.04/0.06")
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Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27935 on: June 14, 2019, 04:54:26 pm »
Thanks Slim. Checking clearances is top on my list right after battery.

No worries Jerry, also if the guy at the shop checked your battery and it was good, but your engine is cranking slow it might be your starter might be buggered, the one on my F2 was doing the same thing, so I swapped in a spare, and it was good. ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

Offline BPellerine

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Re: What did you do to your bike today ?
« Reply #27936 on: June 14, 2019, 05:14:38 pm »
Thanks Slim. Checking clearances is top on my list right after battery.

Pewe this one has the Megacycle 125/75 cam. My card says lash = .005" intake and exhaust. Much easier to do on the bench  ;) After checking clearances again I am going to investigate the CR31's. #2 had a sticky float and overflowed. A quick rap on the bowl solved that but it tells me to look inside the bowls.

Gotta get my ass off here and to the battery store. Later news.
is this the 890 engine reworked  jerry?bill
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27937 on: June 14, 2019, 11:26:41 pm »
Yeah Bill, AGAIN. LMAO. New kit and new crank.

New battery makes a big difference. I had the maintainer on the old one all night. 12.01V in the morning. Cranked it for less than 10 sec was all it would do. Volatge dropped back to 11.7V after that. Now it cranks much better and I even recorded 13.89V at a fast idle. At least I am pleased with something as the electricals on this bike really sucked before I replaced most of it. I had my buddy look inside the exhaust valve caps to watch for oil flow. He hasn't worked on one before. He is up close at idle and "sees a little oil flow" then I rev it up. That is when it got funny. He got a 20W50 oil squirt bath and just about jumped out of his skin trying to get back out of the way.  ;D But hey, I have voltage AND good top end oil flow. Something positive.

Soooooooo...... new plugs and it fired up and sounded a little/some better but #4 still off just not nearly as bad. I checked my valve clearances and guess what... I did my cam timing off #4 intake since it is much more convenient to be/stay on that side for the ignition and my degree wheel has the hole sized for the points shaft. And you set the intake to zero lash and look for .040" lift at 26 BTC. All good. Except every other valve was set to .005". All the OTHERS... Looks like I didn't set #4 intake to .005". The cam checked out at .402" lift. Reset it and checked all the others. Fired up better and sounded better but it ain't right. #4 is still spitting fumes back at the intake somewhat. I can cover up all the other carb throats with my palm and there is more of an effect of choking it off.

I'm trying to formulate my plan hoping I haven't bent a @#$%^&* valve. Thinking I'll check compression in #1 and #4 to compare since they are easy to get to. Gotta find my tester now. I'll get my scope out too and take a look inside.

Thoughts from the gang?

Telling on one's self may be cathartic but it sucks.  :-X   
« Last Edit: June 14, 2019, 11:28:30 pm by Jerry Rxman Griffin aka MuthaF'er »
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27938 on: June 15, 2019, 01:48:26 am »
Ha ha, yeah, do the compression check Jerry, I'm betting that #4 inlet valve isn't sealing, so yeah, maybe you have bent a valve, maybe there's some crap stuck under it, I gave all my valves a whack with my plastic hammer when I had the head off before I flipped it and poured degreaser into each combustion chamber to ensure the valves were all sealing, as at least two valves were open for 10 years, allowing all sorts of horrors to enter the cylinders. Can you think of a time when the piston may have kissed the valve mate? ;D 
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27939 on: June 15, 2019, 11:00:27 am »
Unless that additional 0.005" that I did not set up as lash coupled with the .402" (=.407") valve lift created a problem I do not know. These pistons have better deeper valve pockets than the last kit.

Just about time for my afternoon in the garage
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Gurp

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Re: What did you do to your bike today ?
« Reply #27940 on: June 15, 2019, 01:01:05 pm »
I picked up some auto exhaust adapters and rain caps for the VLX bob.
Mankinds Greatest enemy has and always be itself.


slow Progress 74 cb550.

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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27941 on: June 15, 2019, 01:37:13 pm »
Fukme!!!! Zero compression in this cylinder

SOS out to Mike. Anyone seen Mike today?! MAYBE I can turn this around before Vintage Days.
« Last Edit: June 15, 2019, 01:38:44 pm by Jerry Rxman Griffin aka MuthaF'er »
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27942 on: June 15, 2019, 05:48:21 pm »
Fukme!!!! Zero compression in this cylinder

SOS out to Mike. Anyone seen Mike today?! MAYBE I can turn this around before Vintage Days.

Oops...........  :-\
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

Offline BPellerine

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Re: What did you do to your bike today ?
« Reply #27943 on: June 15, 2019, 06:03:29 pm »
Fukme!!!! Zero compression in this cylinder

SOS out to Mike. Anyone seen Mike today?! MAYBE I can turn this around before Vintage Days.
man that really sucks jerry,not nice to see the mark on the piston,after all that work!bill
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Offline PeWe

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Re: What did you do to your bike today ?
« Reply #27944 on: June 16, 2019, 01:39:43 am »
Really sad news about bent valve, piston hit. :(
Do it quick, forget and have a nice ride is the way.

Lift head, inspect all valves, replace the bent one or more, quick lap of the new valve(s). If one is bent others of same side might be bent too. Inlet or exhaust.
MLS gasket? No problem to reuse it.

I always turn crank around several turns without plugs to feel that everything is right, check timing again.

Around 15 degrees before and after TDC tighten the adj scew until it hit piston. 2mm free until hit is OK. Usually more. Both in and ex.
At max lift and TDC too. If it will hit on e.g. Ex with small clearance, change timing. And redo procedure.

Cam chain tensioner must be set correct and tightened before timing. Too easy to make a mistake with cam chain slack on wrong side.
Time on 1 or 4 should not cause any issues. I checked all 4 first time as a training getting it right and similar numbers.

When one cam is properly timed, no problem next time if engine needs to be opened. (I have all my cam timings of all my cams except stock cams saved in an excel file) Then a quick timing of IN only getting same value as before or the few degrees difference planned. A quick check of EX to verify same value as before. No need to test different settings to get an eventual LC balance in vs ex.

Other cam holders can make very small differences depending on wear.

Do not let this stress you, other mistakes can occur when fixing this as dropping something in engine. I'm always sure that the cam sprocket bolt will snap and jump down or something falling in with help of oily fingers or magnetic tools. Always a clean cloth cover the cam chain tunnel. It has been very close for me several times. It is situations like this when cam holder bolt threads gives up in need of time-sert.... Especially the inner ones trickier to reach if engine sit in frame with frame kit.

One more thing.
No problem to time cam with running lash, even better. This will give the real timing especially when in valve lash differ from ex.
0 lash when confirming total lift, cam card data.
« Last Edit: June 16, 2019, 02:04:25 am by PeWe »
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27945 on: June 16, 2019, 10:51:19 am »
Quick checking in. Gotta turn some wrenches. Yeah this sux but I WILL get it right. I have had worse p[roblems in my life but I got rid of her  ;)

Good tips Pewe. Thanks. Crank turned fine or so it seemed. Didn't feel any hits. I only scoped that one cylinder as the others had compression. Head's coming off anyway  ;) Did I check clearance? No. It was fine before or at least it didn't self destruct at 135 miles. Lesson learned the hard way. Plan on shipping out the head tomorrow for a newvalve and possible guide and possibly cut valve pockets deeper. I KNOW the head has been surfaced once. The cylinders yes but not sure how many times or how much.

Now it's a battle of me vs the shippers haha. All good kinda. I'm chill. Get er done!

Terry called it 

 
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline PeWe

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Re: What did you do to your bike today ?
« Reply #27946 on: June 16, 2019, 11:04:37 am »
I done a mistake like that many years ago. Cam (AF SS-1) was timed by the shop that did the work.  Sprocket and cam had punch marks to line up for later work and no need to time it again. That rather modest cam can differ a few degrees in both directions without problems.

I did everything right except double check afterwards. Cam chain slack probably on wrong side when lining it up.

Engine in, started it and heard the ticking sound when the F2:34 mm valves in K-head kissed the 836 pistons.
Out with engine, valves not bent did it again correct this time. Small marks on all 4 pistons on Inlet side.
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: What did you do to your bike today ?
« Reply #27947 on: June 16, 2019, 01:30:15 pm »
Head off. Nothing catastrophic  ??? :) Other than a slightly bent #4 intake.

 
« Last Edit: June 16, 2019, 05:18:29 pm by Jerry Rxman Griffin aka MuthaF'er »
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline Terry in Australia

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Re: What did you do to your bike today ?
« Reply #27948 on: June 16, 2019, 01:42:24 pm »
Looks pretty good Jerry, are you gonna pop that valve out and take a peek? It could just be tight in the guide? ;D
I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

Offline Bankerdanny

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Re: What did you do to your bike today ?
« Reply #27949 on: June 16, 2019, 02:21:28 pm »
Ordered a repop right control from 4into1. Mine was shorting out and the button was sticking.
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Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki 80 (K11 probably, it's been 30 years), '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

 

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