One-Up Moto Garage

One-Up Moto Garage Inspiring the DIY’er in all of us
Work with what you have & love what you do
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Specializing in custom motorcycle improvement and design internationally.

05/25/2026

Anyone can adjust their own valves. In this video we go step by step to make the process simple for shim style valves. I give a tip for removing them that just takes a zip tie instead of the special tool. I also test compression before and after to see how big of a difference simply adjusting the valve clearance makes…spoiler- it’s big!

05/18/2026

If you ever work on Japanese bikes, pick up some Japanese Industrial Standard (JIS) bits asap. I spent way too long using Philips heads and stripping out bolts on carbs, engine covers and handlebar controls. When in doubt, check the bolt for a little dimple on the face of it - that means it’s a JIS bolt. I’m not brand loyal or sponsored by anyone but I’ll say the set I got is made by Vessel and I am very happy with them!
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05/11/2026

When in doubt, check your valve clearance because the symptoms don’t get noticeable until damage is being done. Valve clearance intervals have gotten much longer in recent decades largely due to improved materials for valve seats and valves. On this KZ the manual recommends 3,000 mile valve clearance checks to avoid the possible risk of a valve tightening up and becoming damaged. Valve clearance also has a direct influence on valve timing, which affects performance too. Thankfully it can be a relatively easy part of preventative maintenance and getting to know your motorcycle!

05/06/2026

If you use a magnet to remove the old shims make sure to check if it became magnetized. If so, demagnetize the shim if you ever plan to reuse it or else it will attract metal debris and wear the cam lobe prematurely. Alternatively, you can use needle nose pliers to remove the shims to avoid that possibility. New long form going into this valve adjustment coming soon! Thanks for watching 🤘

04/24/2026

Fun Fact: I showed electricity flowing from positive (+) to negative (-). This is the “conventional” way to illustrate it thanks to how Benjamin Franklin assumed electricity worked when he discovered it. However modern science has revealed that electrons actually flow from negative to positive! But since we can’t very well change the poles on batteries and terminals or remake all wiring diagram symbols without confusing everything, we’re kind of stuck showing things backward from reality.

In the ‘70’s when electron theory was contentious, Triumph used “positive earth” systems that reversed the polarity to run (+) through the frame and points. Looking back…Were they doing it backwards? Or ahead of their time? 🧐

04/18/2026

100% true story 😅

04/16/2026

It’s a passion project 😮‍💨

04/05/2026

This is why CV carbs are sometimes referred to as vacuum style carbs. Fun fact: CV carbs, by the nature of being vacuum operated, can self tune to a small degree for altitude and temperature changes. This, combined with the more efficient and less temperamental qualities, made them the standard for street bikes shortly after coming onto the market around the early 80’s. However, mechanical carbs still run the aftermarket world because they excel at customizability and tuning for high end engine builds.

04/01/2026

Most CV carbs are designed to work with a restricted air box. When you swap to an open intake like pod filters or velocity stacks the carbs require significant jetting to compensate. I try to keep air boxes stock when I can. From my experience they are designed well for a balance of power and fuel economy. But I do these mods on custom bikes or some older models where stock air box parts are not available or very hard to work with. For your chopper, bobber, cafe racer, or whatever your goals are this video will help you get the full RPM range of power back to your bike! Follow us for more motorcycle how to’s!

03/25/2026

When a fuel injected bike has been sitting for years, we all know injectors clog and fuel pumps stick. But don’t forget about the FPR’s! On older FI’s they’re vacuum operated on the fuel rail and those are even worse when they fail and fill the crank case with fuel. Modern ones, like in this vid, just leak back into the fuel tank when they pop. It still leaves you stranded but thankfully it’s an easy fix when you know what to check!

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