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Discussion in 'Old's Cool' started by LC Garage, Oct 12, 2018.
WOW, that could have taken care of the race for us. I'm glad you found it.
Before continuing on, I think a better explanation of why the extra effort on the chains (and belts). Back in the 70's, I read an article in one of the cycle mags (no internet back then, you had to wait a month between each issue and then read the mags til they were dog eared) that explained when you rode out in the boonies, you should carry a pre-stretched chain and master link so if you had a failure, you could put on a chain that you knew would fit and not immediately stretch out of adjustment.
During our first two enduros, we witnessed many chain (and belt) failures, and we also struggled with our own chains getting super hot and kinked no matter how much lube was applied. So each mini has chains and belts that have been broke in that will be removed and labeled for each machine and replaced with higher quality pieces that will hopefully last the entire event. However if they do fail, we have ready replacements we know work and are already stretched.
Chains boxed and labeled with original master links included;
Used the 4.5" cutoff wheel to slice the brake stay bolt off;
With that freed up, moved on to another concern, that is the chain adjuster bolts push on the flat end of the swing arm, but there weren't any detents for the bolt ends to ride in. Used a small drum grinder to make detents to better secure the bolt end when under stress. It doesn't look like much, but could make the difference;
The new MB chain extension is cut to size, just waiting for the extra master link to finish that up.
Shop helper, it's good to have her home during these difficult times;
The minis are waiting on parts, so Teeny and I decided to resurrect her '72 SL100 for the BBB & Noobs Too; https://advrider.com/f/threads/triple-b-and-noobs-too-6-25-20-thru-6-28-20.1413233/ The last time she rode it was 8 years ago, just before she went into the Air Force. This was a bike we bought from an old school mate of mine and his kids had completely worn it out. We did a fair bit of work on it back, then including a carb kit, but the carb was just worn out. Just before we moved last year I bought a carb and battery for it, so we're going to replace them, the tires and also do a bit of a cosmetic makeover on it. Here are a few pics of where we started today;
The front fender says "Barn Fresh" and I'm pretty sure Loud Al wrote that 8 or 9 years ago when we first brought it home;
Some new bits in front of a chassis that needs cleaning;
Rear fender bracket, before wire buffing and paint;
Tank was shiny but had a lot of chips and dings, she's touching it up;
Using heat gun to remove old decal prior to sanding and painting;
Ready to prime;
Primed, will probably sand and prime again before painting;
Chassis after initial cleaning;
You go all out Rick. It's inspiring me to polish up my bikes. Nice attention to detail on those mini's. You guys will have the sharpest and most reliable bikes out there.
This afternoon it warmed up a bit, so rolled the SL100 chassis (turns out it's a 71) out in the yard and gave it a good wash job, then brought it back inside and used compressed air to blow all the nooks and crannies dry. Much cleaner;
Then I worked on touching up the frame and other pieces with the closest silver paint I could find at O'Reilly's;
Teeny resanded the primered rear fender as it still had a lot of flaws;
This bike will not be a show piece, just tidied up and presentable. In addition to the tires on order, today we also ordered a front brake cable as the original has many cracks in it. Looking at headlight and taillight options, but we agreed we need to keep it retro. We are getting rid of the big front number plate and going with a smaller vintage oval Preston Petty, possibly notched to fit in behind a very small headlight.
Found the original pic when we brought the SL100 home, about 2011 ish;
What's funny is it had a speedo and I started looking for one to put on it yesterday on ebay. LOL
And here's Teeny putting a new chain on it, a year before she left for the Air Force;
And riding it;
So the story about reading the old cycle mags and getting advice from the pro's in the late 60's or early 70's made me think of another story. It was 1970, I was 16 and riding my '63 BSA Starfire 250 up in the foothills around Scappoose and had a rear flat. I have no pictures of the bike, but it looked like this;
This was no trail bike but back then whatever bike you had, WAS your trail bike!
I was alone, about 8 miles from the nearest phone and didn't want to leave my bike or ride on a flat and ruin the tire or rim. Then I remembered something I'd read "with wheel and tire still on bike, use whatever tool you have to dismount one side of the tire from the rim, stuff it full of roadside debris, and ride slowly home". What the hell, why not try? I laid the BSA on its side, used a pair of pliers from my trusty tool kit, opened them all the way up and used the handle as a tire iron. No beadlocks and a pliable old trials tire, it came right off and I stuffed with fir needles, fir cones and dirt. Used the "tire iron" pliers to put the bead back on the rim and rode to the nearest gas station where I took it apart, cleaned it out, patched the tube and rode it home.
Great story. I love reading about how riders can make do with what is on hand when there isn't a store right around the corner.
Those SL100s and SL125s are wonderful bikes. Try to ride without grinning, not gonna happen. Powroll down in OR used to sell performance parts for them but I don't think they're around anymore.
Nope, long gone. I have an MZ 125SM and heard they made a great exhaust for it and found out they packed it up decades ago.
Painted the rear fender with a rattle can to match the fuel tank, it came out pretty good;
Teeny doing final touch-ups on her frame;
Chassis all clean and touched up, time to work on making it run;
Pulled off carb, snorkel and filter;
After cleaning & wire brushing the air filter screen, test fit one of the foam wraps from the mini bike's air filter and it was a perfect fit;
Finished install, note the missing rubber booty on the throttle cable fitting to carb, but that's an easy fix. Doh!
Charging the 6 volt battery, hooked it up in series with the old battery so as not to overcharge with the 12v battery tender;
Looking better every day;
Taking today off from the SL100 project to go pull the head on my brother in laws Cummins 24v. Next up will be to install battery, clean the points and see if it will run.
Adapt and overcome. Daughter who's been in school on east coast after AF is home here in Oregon and may not be going back. She's doing her school work on my laptop so I'm posting from my phone. Can't figure out how to post pics so all you get is a write up. Suck it up butter cup, I'll paint you some word pictures. LOL.
So we pulled the Cummins 24v head on Tuesday, drilled and easy outed the broken head bolt and today put it all back together except new injectors and valve adjustment. My BIL (brother in law) Vince already had a specialist lined up for that work before the head bolt broke, so that just made our job easier.
Torquing the head bolts, esp the ones under the firewall overhang was a challenge. The bolts require a torque and then re-torque at both 69 and 89 ft lbs. Then a final 90 degree turn on each bolt times 26 head bolts. That's 5 times thru for these 60 plus year old guys. Whew. But we got er done!
Parts have been trickling in for the minis and the SL100 and Murphy's law continues to exert force on the universe.
Chain master links for minis were wrong size. Rear 17" tire came for little SL but only the 19" tube.
But the brake cable came in for the SL so we decided to give the handlebars, perches and levers a make over. Went thru all the junk boxes and came up with enough random bits to assemble a fairly decent looking and operating set of controls.
Teeny sanded and touched up the bars and "buffed" (wire wheeled) the perches and levers, I filed, drilled and ground a few pieces to fit, installed all the bits including the new brake cable and lubing the throttle and now it all looks and works very well.
Pictures to follow when I can get my computer back for an hour or two.
Good tip on the 212 motor air filter foam fitting the sl100.
Got a few things done on the SL100 today, but 1st some catching up on photos.
A few days ago when Vince and I were pulling the 24V head. We got lucky the broken bolt came out of the block fairly easily. Tomorrow it gets new injectors and we find out if our work was successful or not;
SL100 wiring was kind of sketchy, with 3 different ground wires (not really a bad thing), and the new battery has bullet connectors while the old wiring was ring terminals;
Grounds were consolidated by soldering one wire to three;
Wiring all cleaned up. There is now a ground available at rear of airbox for both headlight & taillight and positive female bullet ports for same;
Controls before with ratty mismatched perches, levers and cracked brake cable;
Junk box of perches and levers that provided raw material for control make over;
Teeny getting proficient at "polishing" on the wire wheel, here bringing all control parts back to bare aluminum;
Controls much better now, still need to do some final cable routing;
Installing rear tire included dismounting old tire, wire brushing inner rim, mounting new tire, cleaning brake parts and wire wheel buffing of axle and chain adjusters before reassembly;
I've adopted the methodology of putting the tube in the tire, slightly inflating, and spooning it as a unit onto the rim. It seems to work;
Moving on to rear fender and mounting of CT70 knockoff taillight, here mocking taillight up;
After careful measuring, drilled holes and made a mounting pad from the tube just removed from rear tire;
Taillight mounted, still needs wiring finished but will hold off on that until headlight gets here;
Front tire arrived this afternoon, may get that mounted tomorrow.
Any particular reason you put a battery on the SL, as opposed to a capacitor? Everything looks great!
My experience with older Hondas is you can just use a capacitor but they are harder to start. Also wanted a battery for running lights more efficiently. Thanks for your kind words, this is what I sometimes call a "rustoration" lots of cleaning and touch ups but still some flaws and patina. If a bike is too pretty then you're afraid to ride it.
The shop looks settled in, as if you had been there forever! Nicely done in such a (relatively) short time.
Thanks very much! If I were not married, I'd live in my shop. Seriously. I spend a lot of time out there and making it functional and personalized makes it all the more pleasurable. Today the long lost contractor returns (at least that's what he said yesterday) to install the man door between the North shop and the new motorhome shed. Lots of other projects and upgrades for the shop are planned. Little Red just read this and said "we haven't lived here long enough for you to muck it up yet", oh that girl!