Showing posts with label tech. Show all posts
Showing posts with label tech. Show all posts

Tuesday, March 6, 2007

Trackday! My season is officially open!


So I did my first track day of the season, up at Thunderhill, organized by one of our suppliers, namely Tucker Rocky. They are one reason why we have a good time here at the shop, their service to us (and ultimately to our customers) is great.

But it wasn't just a track day for me. This time I made it a test-and-tune: I took my old trusty 2001 Suzuki GSX-R750 up there to dial in the suspension. It's something that is most easily done on the track.

Think about it: you can go the same speed around the same corners of the same track after every change, and you can feel every change and dial the bike in to suit you needs.

It's a good idea to note down the base settings before you start turning the dials. Find out from your manual which adjustment is what, and find the base setting by counting the clicks screwing the adjuster in, or turns if it doesn't have clicks, then turn it out to the exact number that you counted. Don't forget that step, it's easy to count, note it down, and move to the next step without resetting it. That will make for unpleasant surprises when you get back out there.

Then, note down the change, and when you come back, note down what the bike did, like "more bumpy now, will go back the other direction by 2 clicks" or something to that effect. Also, never make more than one change at a time, or do too many clicks, 1 or 2 is enough, otherwise you fool yourself into wrong conclusions. Good notes are very important: trust me, you WILL forget...

And most important: When doing this, go around the track at no more than maybe 60-70% of your regular speed, so if the bike does something erratic you will still be able to stand the bike up and get it around the turn, and not be fully leaned over without room for error. Remember, it's a test-and-tune. It's sometimes hard to let your friends blaze-by-ya, but eventually you blaze by them, since your suspension now works just great and you will have full confidence that the motorcycle is doing exactly what you want it to do when you throw it into the turn.

So have fun on the track, play with your suspension, hold your line, rubber side down and sunny side up!

Might see you out there one of these days...

Jennifer

P.S. In case you are wondering about the picture: when I went to try out my new camera to make pictures in turn 14 somebody crashed (didn't get hurt) and the session got red-flagged, and no bikes were on track. So I took the opportunity to photograph the cool checkered-flag-wrapped trashcan with the pretty flowers around it...not too often you see green at Thunderhill...

Friday, February 2, 2007

My bike stopped running!

Your bike stopped running. It cranks over but won't catch. Everything looks normal, petcock in on, kill switch is on, lights are on. Nothing changed and it really should be running. Argh! Don't know what to do next?

First thing, always: MAKE SURE YOU HAVE GAS! You might think this is obvious. Not so. About once a month I get somebody in here that has no gas, or didn't turn the petcock to reserve. Cost: towing plus the minimum shop rate. Looking in the gas tank is an easy way to check out if you have gas. Make sure you hold your breath: gas fumes are pretty bad for your lungs, and kids, no smoking while you're cap is open either. And beware: if there is a little gas covering the bottom, that might not be enough to start the bike.

Next: CHECK YOUR FUSES! Inspect them, make sure the little filament is not broken, and move them back and forth in their sockets (if they are glass fuses), or in and out (if they are plastic) to make sure that there isn't any corrosion that hinders the juice from going where it's supposed to go. Clean suspect contacts by scratching off the corrosion (e.g. your keys, nail file, clippers or whatever else your pant pockets will produce).

If that doesn't do the trick: try bump starting the bike. Have a friend push you, put it in second gear, pop the clutch when you reached about 10 mph or so. But please, make sure you wear your gear and a helmet. If the bike still won't start the rear tire will lock up, and if you are not fast enough pulling the clutch back in, you WILL crash. So caution, best is to have somebody do it that has a little experience.

But experience doesn't always shield you from doing stupid things:
I had a boyfriend once, that had experience, but didn't wear a helmet, trying to bump start a motorcycle sidesaddle. The bike started, stalled again, and bucked him off like a bronco. He couldn't remember his mother's name for a while, not did he know who the president was (which is something that a lot of us would like to be able forget right now, so maybe that is a good thing). He got himself a real good concussion. Fortunately, he didn't crack his head open. So wear a helmet. Thanks.

If your bike still doesn't start, it's time for more serious diagnosing. But don't be afraid: there are a lot of little things you can do with very little tools. Keep posted!

Tuesday, January 30, 2007

Jen's Werkstatt Tech Blog


Hi all, my name is Jennifer Bromme, and some of you might know me from Werkstatt Motorcycle Repair in San Francisco, which I have started, owned and run since 1994.

I have been professionally working on Japanese motorcycles and BMWs as a motorcycle mechanic since 1990, have been riding since 1988 and amassed a lot of little, useful tips and tricks over the years, some in my apprenticeship, but most by trial and error and by knowledge passed down from the old guys that seem to have been around since Methuselah and that have knowledge about things that is not in the textbook anymore, or on the internet for that matter. Ever see "The Worlds Fastest Indian"? The main character, Burt Munro actually casts his own pistons in his shed behind his house, and manages to set the World Speed Record for over 1000cc vehicles in 1960, and held this record until a few years ago.

Now I don't know how to cast my own pistons, but I do know a lot of little tricks to make your life easier when you are working on your own motorcycle. Like how to use a hose to get the threads started without cross threading when installing a spark plug, spit in the spark plug cap grommet to get it to mount easier to the cable, or to use another box end wrench to make an extension on the side of the road if you are not built like Schwarzenegger to open that rear wheel nut that the previous owner cranked down way to tight.

I also stumble upon a lot of problems that could be avoided in the course of running a motorcycle repair facility, and I thought this would be good way to share avoidable, expensive mistakes!

So keep posted on the latest no-nos and tips and tricks for your motorcycle! I will take suggestions about topics, or if some of you want to share tips you'd be more than welcome to!

Jennifer

P.S. The picture was taken by Sarah Lyon, and it's on the July page of her Female Mechanic Calendar. In other words, I am now officially a calendar girl :) Thanks Sarah, for making a calendar of women that is not a pinup calendar! Check out her site at www.sarahlyon.com