Motorcycle How-To Tech Articles
The following articles were written for the mechanically inclined person who owns or has access to a fair amount of tools, has some mechanical background, and is willing to learn new skills.
Although there are numerous ways to approach any given problem, we have found these methods to be practical, reliable, and economical, while still providing a quality outcome.
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Cylinder Boring and Honing
For the DIYer, boring motorcycle cylinders with a $200 hand-held tool will take much longer than a $5,000 shop machine can do it in. But, whether cylinder boring is done in your home garage or at a machine shop, the results will be as good as the operator.
![DIY motorcycle cylinder boring how to bore motorcycle cylinders](http://www.classic-motorcycle-build.com/image-files/xdial-bore-gauge-6.jpg.pagespeed.ic.3SLf1sB31t.jpg)
Read: DIY Motorcycle Cylinder Boring
Read: DIY Motorcycle Cylinder Honing
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Cylinder Heads
As an alternative to vapor blasting, cleaning cylinder heads with degreaser and a brass brush will guarantee every inch of the head is gone over. It will take longer than newer, modern methods, but it's cheaper and gets the same results.
![alternatives to vapor blasting remove carbon off cylinder head](http://www.classic-motorcycle-build.com/image-files/xclean-carbon-off-cylinder-head.jpg.pagespeed.ic.XjOJmq6_Tb.jpg)
Read: Clean Carbon Off Cylinder Heads
If you need valve guides, aftermarket ones are available for most classic bikes. Worn guides are usually pressed out and new ones pressed in.
![motorcycle cylinder head repair DIY replace valve guides](http://www.classic-motorcycle-build.com/image-files/xinstall-valve-guides-ironhead-65.jpg.pagespeed.ic.sYOigriuSh.jpg)
Read: Remove Valve Guides
Read: Install Valve Guides
![motorcycle valve job three angle valve job](http://www.classic-motorcycle-build.com/image-files/rebuild-cylinder-heads-65.jpg)
Read: How To Lap Valves
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Repair Stripped Threads In Aluminum
There's not too many 50 year-old aluminum engine cases that don't have a stripped thread or two.
![stripped thread repair in aluminum engine case repair stripped threads in aluminum](http://www.classic-motorcycle-build.com/image-files/motorcycle-engine-case-repair-56.jpg)
Read: Repair Stripped Threads In Aluminum
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Harley Crankcase Lapping
Lapping the main bearing race in Harley engine cases assures precise alignment of flywheel shafts, allowing maximum power and engine life.
![Harley crankcase lapping tool Ironhead pinion race lapping tool](http://www.classic-motorcycle-build.com/image-files/harley-crankcase-lapping-tool-big-twins-and-ironhead-sportsters.jpg)
Read: Harley Crankcase Lapping Tool and Usage
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Replace Fork Seals
Most dealerships charge around $300 to $400 to replace a pair of fork seals, which is an hour or two of their labor plus the price of the seals and fork oil. And if you have a 30+ year-old bike, is not uncommon for a shop to decline the work.
![Harley 35mm fork seal replacement fork seal E-clip](http://www.classic-motorcycle-build.com/image-files/xsportster-fork-seal-e-clip.jpg.pagespeed.ic.2pvGp2thai.jpg)
Read: Replace Harley Fork Seals 35mm
![replace fork seals bmw R-series with telelever BMW fork seal replacement](http://www.classic-motorcycle-build.com/image-files/xfork-seal-retaining-ring-bmw-motorcycle.jpg.pagespeed.ic.FexfeYvEp7.jpg)
Read: Replace Fork Seals BMW R-Series (Telelever)
![replace fork seals Norton Commando Norton Commando replace fork seals](http://www.classic-motorcycle-build.com/image-files/xfront-fork-assembly-norton-commando.jpg.pagespeed.ic.6Sp3pjVRGK.jpg)
Read: Norton Commando Front Forks Overhaul
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Aluminum Polishing
Polishing aluminum can be done by hand, but a buffing wheel is a lot faster.
![fork sliders look like new after polishing Harley hydra glide sliders after polishing](http://www.classic-motorcycle-build.com/image-files/harley-fork-sliders-after-polishing-64.jpg)
Read: How To Polish Motorcycle Forks
![polishing aluminum motorcycle parts how to polish aluminum valve covers](http://www.classic-motorcycle-build.com/image-files/polish-aluminum-motorcycle-parts.jpg)
Read: How To Polish Aluminum Engine Parts
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Motorcycle Carb Rebuild
![Bendix carburetor rebuild best carb for Ironhead](http://www.classic-motorcycle-build.com/image-files/xbendix-carb-on-sportster-74.jpg.pagespeed.ic.OKM4BV8pgf.jpg)
Bendix Carburetor Rebuild
![motorcycle carburetor problems Linkert carb on Harley 45 flathead](http://www.classic-motorcycle-build.com/image-files/xharley-45-flathead-build.jpg.pagespeed.ic.xl7wPpXjfb.jpg)
Linkert DC Carburetor Rebuild
![SS Super B carburetor rebuild Super B rebuild](http://www.classic-motorcycle-build.com/image-files/xsuper-b-carburetor.jpg.pagespeed.ic.Rk9IkooYsG.jpg)
Tuning The S&S Super B
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* CAUTION *
If you work on your motorcycle's engine and are unsuccessful, your bike doesn't run. If you work on your motorcycle's brakes and are unsuccessful, your bike doesn't stop.
Working on brake systems is not something to be taken lightly.
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Rebuild Harley Brake Calipers
We all know that one front caliper with one big rotor will out-brake two front calipers with two small rotors. But back in the seventies, they were the best brakes Harley had, and they sure looked cool.
![how to rebuild Harley dual calipers Harley dual disc brake overhaul](http://www.classic-motorcycle-build.com/image-files/xharley-xlcr-cafe-racer-77.jpg.pagespeed.ic.qE3MwO6SHw.jpg)
Read: Rebuild Harley Dual Calipers
This article explains how to rebuild 1977 through 1983 Harley dual front calipers.
To rebuild 1973 through 1977 Harley single front calipers click here.
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Rebuild Harley Brake Master Cylinder
A master cylinder rebuild will involve removing, disassembling, cleaning, and reassembling with new seals.
![Harley master cylinder rebuild rebuild motorcycle brake master cylinder](http://www.classic-motorcycle-build.com/image-files/xrebuild-harley-master-cylinder-76.jpg.pagespeed.ic.2S3fE9R9_N.jpg)
Read: Rebuild Harley Master Cylinder
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Remove Stuck Brake Piston
When a motorcycle sits for a long time, all kinds of bad things can happen.
![remove stuck piston from caliper stuck brake piston removal](http://www.classic-motorcycle-build.com/image-files/remove-stuck-piston-from-caliper-81.jpg)
Read: Remove Stuck Brake Piston
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Norton Commando Caliper Overhaul
This article includes information on how to remove frozen pistons from dual piston calipers.
![Norton Commando remove stuck caliper pistons brake overhaul Norton Commando](http://www.classic-motorcycle-build.com/image-files/norton-commando-remove-brake-caliper-end-plug.jpg)
Read: Commando Brake Caliper Overhaul
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For those of you with some welding skills, or if you can drill and cut metal and know someone who welds:
Motorcycle Engine Stand
This article shows how to build a Harley Big-Twin/Flathead engine stand.
![DIY Harley engine stand DIY motorcycle engine stand](http://www.classic-motorcycle-build.com/image-files/xharley-45-engine-assembly-15.jpg.pagespeed.ic.miZ7RUJ3Ll.jpg)
Read: DIY Harley Engine Stand
Flywheel Truing Stand
A truing stand is a nice luxury, but homemade units work just as well.
![DIY motorcycle truing stand DIY flywheel truing stand](http://www.classic-motorcycle-build.com/image-files/xflywheel-truing-stand-5.jpg.pagespeed.ic.lyzQDWetPp.jpg)
Read: DIY Flywheel Truing Stand
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Cracked Cooling Fin Repair
The success of a cooling fin repair will depend on selecting the correct width and grade of metal, cutting and shaping the fin patch to fit, properly welded it in, and then final trimming.
![weld cast iron cylinder repair broken cylinder fin on motorcycle](http://www.classic-motorcycle-build.com/image-files/tig-weld-cast-iron-cylinder.jpg)
Read: Repair Cracked Cooling Fins
Repair Cracked Engine Cases
Aluminum engine cases can be repaired and made as good as new, provided the repair is done right.
![repair cracked motorcycle engine cases Repair old motorcycle engine](http://www.classic-motorcycle-build.com/image-files/xweld-cracked-cases.jpg.pagespeed.ic.i0JDSmOH8T.jpg)
Read: Repair Cracked Cases
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