Ergo-cycling: Concours 14 vs Tiger 955i for 6'3" Me

 Cycle-Ergo, the motorcycle ergonomics simulator, is a great online resource for getting a sense of what you'll look like and how you'll fit on a bike.  Unlike cars, your options with bikes aren't as easy as sliding your seat back or adjusting the steering wheel.  To make ergonomic changes on a motorbike you need to change hardware and mechanically adjust it to make it fit.

The other day I was out on my trusty 2003 Triumph Tiger 955i.  I came off a Kawasaki Concours 10 to the Tiger and while the Connie was comfortable, it made my knees ache on long rides.  The first time I sat on the Tiger it felt like a bike built by people the same shape and size as me because it is.  I can go for hours without putting a foot down without a cramp on the Triumph.  This got me thinking about the differences between the big Kawasaki that sits next to the Tiger in the garage these days.

Cycle-Ergo gives me a quick way to check out the differences.  Forward lean is much more pronounced on the Concours 14 (12° vs an almost vertical 4° on the Tiger).  Knee angle is the same and my knees aren't bothering me on the Connie but hip angle is 6° tighter on the Kawasaki which explains the cramps I was feeling after today.

I sold a Honda Fireblade to bring the 1400GTR in and that bike had an extreme 'sports' riding position which was basically like doing a push-up on the bike (you lay on it) - it ain't easy on the wrists.  There are advantages to this aggressive riding position.  When you want to get down to business in corners a forward lean gives you a more intimate relationship with the front end, which is why sports focused bikes tend to sit a rider the way they do.  If I lived somewhere where roads were dancing with the landscape instead of cutting straight lines across it I'd have happily kept the Fireblade, but in tedious Southwestern Ontario it didn't make much sense.

Today I did a 200km loop on the Kawasaki and the constant lean does make it tiresome on the arrow straight roads around here (I have to ride 40 minutes to find 10 minutes of curves).  In the twisties the Concours is much more composed than the taller, bigger wheeled Tiger.  The Concours is a 50+ kg heavier bike but you can see in the animation that it holds its weight much lower than the Tiger.  In the bends today the Connie was fine but the SW Ontario-tedium I have to deal with most of the time has me thinking about ways to ease that lean.

There are solutions to this in the form of 'bar risers' which are blocks of machined metal that you slip in under the handlebars to bring them taller and closer to you so you're not stooped.  For me the lean also means I'm putting a lot of weight on my, um, man-parts, which end up pressed against the tank due to the lean.

Here's the difference between a stock
Concours 14 and the Murph's Kit bar
riser modification.

I had a look around at bar-risers.  There are number of people who put them together including some cheaper Chinese options but I ended up going with Murph's Kits C14 bar risers.  Murph is well known in the Concours Owners Group and has been producing Concours specific parts for decades.  His risers aren't quite as tall as some of the others and look to solve the problem without over-solving it by giving too-tall handlebars that spoil the lines and the purpose of the bike.

The biggest ergo-thing I did on the otherwise well-fitting Tiger was getting a Corbin seat for it which makes it a long distance weapon.  I'll eventually do the same thing for the Connie but I think I can make do with the stock seat this year and then do the Corbin over the winter.  That doesn't stop me from mucking around with the Corbin seat simulator though:

By next spring I'll have a C14 that fits but it isn't as easy as sliding the seat back in a car.  In the meantime we've got the Lobo Loco Comical Rally coming up at the end of the month.  That requires a minimum of 400kms travelled in 12 hours and will need more than that if we're going to be competitive.  I'm hoping my bar risers will be installed and I'll bring the good ole Airhawk out of semi-retirement to keep me limber over a long day in the saddle.

If you're thinking, "oh, a long distance motorcycle rally, that sounds like fun, you're out of luck on the Comical Rally, it sold out!  Lobo Loco is doing other rallies later in the summer though.

Rings and Carburetors: Swimming Upstream on this Vintage Motorcycle Restoration Project

The never ending winter drones on up here, so I'm putting my back into getting the '71 Triumph Bonneville project closer to a state of mobility.

I have a new 750cc head and pistons on hand, so I gave the piston rings a go. Installing them is pretty straightforward and the first set went in no problem, but as I was compressing the second set into the cylinder sleeve it didn't feel right, so I backed everything out and the bottom ring came out in pieces. I can only think it was already compromised in the package.

I sent Britcycle an email and they looked through the warehouse to see if they had any extras laying around, but I was out of luck, so it's a $100 failure (new rings, taxes, shipping). Ouch. This got me looking at costs for this vintage project. The last one I did was the Fireblade. Those are my favourite kinds of restorations. Parts are easy to find and relatively inexpensive, the bike is rideable fairly quickly and, after riding it for a season, I can turn it over for at least what I put into it (or with a small profit as was the case with the Fireblade).

New cylinder heads and cylinders... and broken ring.

 

I think I'm still right way up on the Bonneville simply because these older bikes seem to work under their own economy. I was looking up prices of what I've got on eBay this evening and the frickin owners manual that Bryan threw in at the last minute is $50US! A used top end is $500US (and Bryan gave me 2 of the things!). I imagine I could double my money just parting it all out, though dealing with people doing that would be a giant pain in the ass - at least it has been with the newer bike crowd, maybe the vintage types are less adversarial.

I had a couple of choices when I was considering going old school, and I think I picked the hardest possible one to bring back to life. The technical side of it doesn't bother me, but with costs increasing all around I'm bothered more about the high prices and difficulty finding and shipping parts than I am with what I've got to do to bring it back. That old BSA would have probably been a better choice for my first vintage resto, but it (and alas, Bryan) are long gone.

I've got what I've got, and I've got a lot of it, and I'm crafty. I'll see what I can do about replacing fasteners and the other bits and pieces I'm missing without it breaking the bank, those these strange old British pre-metric fasteners are a story unto themselves. The goal right now is to rebuild the bike to an operational state and then maybe ride it for a bit before putting it up for sale. I still need a seat and exhausts and I'll need other odds and ends like control cables. If I can get it back to a state of play, I think I can cover costs and move it along, then I'm thinking I'll go back to my favourite hunting grounds: forgotten bikes from the 80s, 90s and 00s that I can turn over for next to nothing while giving me a chance to ride something different for a little while.

When the ring crumbled on me I changed gears and rebuilt the Amal carbs. That went well, but I'm missing two of the bolts to put the second carb back together - they weren't on it when I wiped the mud and rust away. It's these little setbacks that stall things, and it's not like I can grab a couple of replacements out of my big tray of bolts (most of which are metric).

 

How simple can you make a carburettor? These old Amals are pretty close to first principles. The combination of archaeology and simple mechanics is very appealing when everything else I ride carries a computer and my day job is all about them - it's nice to be fully analog!

I'd broken down the carbs in the fall and left them packaged in a segmented toolbox. Putting them back together was problem free and the kits I got from Britcycle replaced all the gaskets and rubber grommets in them. The old rubber bits were really showing their age.

Guess which one is the 50 year old ring (I;m assuming they're original)?

Just need some bolts (at $3.50US a pop)

If money and time were no object I'd dig deeper into this vintage resto thing - I dig the mechanical simplicity and I enjoy seeing how mechanical evolution happens over time. As a hobby in retirement, it has great appeal, but I'm some years away from that much free time on my hands.

I'll see this one through and then refocus on the SPQR-WRO (small profit, quick return - with riding opportunities) side of it where the costs and time commitments aren't quite so demanding.

 

 

 

Flooding Fireblades: Sorting the fuel system on a '97 CBR900RR

Butterfly is under-gasoline...

Weather's closing in on us up here in Canada.  I had the 'Blade up on the bike lift last week thinking the riding season was over as we got buried in our first snow storm.  The next week suddenly warmed up due to a tropical storm somewhere, so I primed the Honda and got it going again (I'd run it dry in preparation for winter hibernation).  Unfortunately, it flooded itself and ended up with the first two carbs full of fuel.  You can see the wet in carb bell on the left.

I think from now on I'm going to turn off the fuel tap from now on whenever it's sitting rather than trust this touchy carb set to do the right thing.  Instead of taking the Fireblade out for a weirdly warm ride on Sunday, I was sitting on the driveway removing the carbs and changing the oil.

On the upside, pulling the carbs gave me a chance to replace all the rubbers (airbox and engine side), which needed doing (I'd been holding them together with some cunning chemistry).

New rubber bits on old bikes make a huge difference.  Even the engine side ones (which still looked good after 23 years of service) were hard and unyielding compared to the new ones.  I'm curious to see how the new ones seal in comparison.  I got the airbox rubbers from KW Honda in Waterloo, who were very responsive on email which hasn't always been my experience with local dealers.  They got four rubber airbox boots for a 23 year old bike that's been out of production for decades in less than a week, during a pandemic.  It's good to know my local Honda dealer supports older models.

I picked up a second carb set from NCK Cycle Salvage in Woodstock last fall for less than the price of the broken bits I needed to replace on the one that came on the bike.  I now have an entire second set of carb hard parts I can go to if I need any other bits.  The set they gave me (other than needing a choke pin on one of the carbs) was complete and balanced, and when I threw it on it worked a treat, so I ran it all summer having never gone through it.

With the carbs off in the late autumn sun last Sunday, I finally took the float bowls off and discovered that they were pretty grotty (when I emptied them the fuel came out brown).  It didn't take long to clean everything up, and I got carb cleaner deep into the jets and upper parts of the carburetors too.  It all went back together nicely and I was also able to lubricate and clean up the throttle action with the unit out, though it already moved sweetly.

With the new rubbers on, I put the carbs back on after work this week and they came back together nicely.  It's a good idea to attach the two throttle cables to the carb set while it's still loose.  Once the carb set is on the bike getting the cables on is a real bugger.

I went over all the fasteners as I went making sure everything was snug and leak free.  I've still got to put new oil in it, but we have a above zero day this Saturday so I'm hoping I can take the 'Blade out for an end of year run to make sure everything is five by five before I hibernate it for the winter.  Months hence after the winter of second-wave COVID pandemic, the Honda will be ready to go with fresh oil and a clean and capable set of carburetors.

This forgotten Honda is a real treat to ride this summer and is a very different thing from the Tiger.  One is a long distance tool built for pretty much anything, the other is more like an aeroplane designed for the road.  The 'Blade weighs over 20% less than the Tiger and makes almost 40% more power.  On interesting paved roads the Fireblade is in a class by itself.  Unfortunately, I live in a place deficient in interesting roads and track days in Ontario, even when there isn't a pandemic, are needlessly complicated (you basically have to show up with a race bike or rent something, there are no ride-on days for road bikes here).

The other nice thing about the Honda is how it's built for a single intention.  That focus on light-weight means getting in to work on it has been accessible and enjoyable.  Honda's aren't just designed ot run well, they're designed to be worked on too.  As my first Honda this bike has been a positive introduction to their engineering and design philosophy.

If I lived somewhere with interesting roads and reasonable track days I'd be hanging on to the Honda indefinitely as it was designed to express the dynamics of riding, but living in South Western Ontario, devoid as it is of interest, means I'm going to try and move the Honda on in the spring... assuming anyone is left post second-wave to buy it then.  I'm going to miss what it can do though.  Having this bike has opened my eyes to what a motorcycle is capable of dynamically.

FOLLOWUP

We've got a major winter storm (100km/hr+ winds, rain and snow mixed) rolling in, but I got out yesterday afternoon for an hour and the 'Blade is even sharper than it was before.  The new rubber seals tighter, making the engine even more responsive, and the cleaned carbs are razor sharp in responding to throttle.  When I got home (cold, it was only a degree or two above freezing), I closed the petcock and ran it dry before parking up the 'Blade and wrapping it up for the winter.

After our long cold winter with second wave COVID19 piled on top, it'll be ready to go in the spring...

'98 Fireblade Winter Project: Wiring & Petcocks

With the carbs sorted I'm chasing down anything else that could have caused the fuel leak into the engine on the Fireblade.  Yesterday I had the petcock out of the gas tank again and tested it over a catch basin.  Fuel flows fine when it's on, but it continues to drip when it's supposed to be closed, so a new petcock is in order.  Fortunately they seem to be a regularly replaced maintenance item because you can buy them on Amazon for not much money.

The neutral light wasn't working, so I got some LED replacements - they're super bright.  The wiring to the neutral sensor was stripped down by the drive sprocket, so I cleaned it up, reattached it and taped it up.  Voila, working neutral light again.

There were also a set of wires coming out of the drive sprocket housing that look like they go to a speed sensor which were resting on the exhaust pipe and had melted.  These too got sorted and re-wrapped.  I'm also going to fasten that loom so that it can't touch the exhaust again.

There are still lots of little details to sort, but the Honda is coming together nicely.  I'll aim to have it safetied in the spring and then run it for a few months and see if having a second bike in the garage is worth hanging on to, or it might just be sold on to fund the next project.  In the meantime, I'm looking forward to running my first true sport bike.

Bike History, Ancient Rubber & COVID-proof Supply Chains

Ontario gets you to buy a vehicle history when you transfer ownership.  The main reason is to make sure you're not buying something with an existing debt on it, but I like it for the history lesson; you get a good sense of a bike's life from that list of dates and owners.  I'm the third owner of the Tiger.  The first one owned it for most of its life.  The guy I bought it from owned it for a short time (I think it was his first bike) before passing it along to me.

The Fireblade's history also tells a tale.  In July of 1996 it was sold to a guy in West Hill, Ontario (part of Scarborough in the east end of Toronto).  He sold it to McBride Cycle in Toronto (Percy's name is still down as the owner on bikes they brought in then) less than a year later in May of 1997.   McBride Cycle moved it on to a guy in Mississauga two months later in July of 1997.   The previous owner to me bought it in April of 1998 and owned it up until his divorce when he gave it to his ex as part of their separation.  It then sat with her through the divorce until her new boyfriend dropped it off for me last September, 2019.  Timeline wise, the owners of this bike have lasted:

• 10 months
• 2 months (dealer)
• 10 months
• and 21 years, though it looks like it was unused for most of the last decade of those.

I'm the 5th owner of the bike, and if I hold on to it for more than ten months I'll be the second longest owner it has had.  This 23 year old Japanese super model only has twenty-five thousand kilometres on her and sat unused for long enough that the petcock that metres fuel out of the tank failed and flooded the engine, then it sat broken in a garage.


This Honda is a 'supersport' bike with 'hypersport' tires, meaning they're soft, grippy and don't last long.  I once heard a story of a guy who used to drive his supersport bike to twisty roads in his van, ride it hard for a couple of days, and then open up his van and change to new tires using the tire mounting equipment he kept mounted in there.  Heavy handed riders can burn through a set of these types of tires after a single track day.

Lloyd at Mostly Ironheads measured the depth and determined that the 'Blade needed new tires to meet safety requirements.  I've got the 'Blade raised up in the garage at the moment and had a good look at the tires today, and found these:

But the numbers didn't make sense to me because I've never had a bike with tires made before 2000.  Tires after the year 2000 have a four digit code printed on them showing the date of manufacture, so you know if they're getting stale (rubber goes off over time).  If you see a 3507 stamped on your tire after the DOT designation it means they were manufactured on the 35th week of 2007.  But the 'Blade's tires show a 038 on the rear and a 395 on the front.

Pre-2000 tires only had a 3 digit code on them.  The first two are the week and the last one is the year, but you get to guess the decade, which is why they updated it in 2000.  If I'm reading the Fireblade's tires right, the rear was made in the 3rd week of 1998 and the front was made in the 39th week of 1995.  The tire model is a Bridgestone Battlax BT56F, and they were kicking around in the 90s.  It appears the "Blade's tires are well over 20 years old.

Sorting out tires during a pandemic should have been a real headache, but it was another COVID19 supply line success story.  I fired out requests to Two Wheel Motorsports, my local dealer, but they couldn't be bothered to respond.  I also tried to reach out to all the local tire stores and not one had the tech to do motorcycle tires.  I tried other local bike shops, but once again, radio silence.  It's like some people just don't want to make money during this situation.  Perhaps getting handouts from the government is all they need.

The only reply I got was from John at REVCO.CA, an online tire company out near Ottawa.  He was straight up with me, saying that they can usually turn around an order in a matter of hours, but it might take up to a week right now.  What convinced me to spend nearly four hundred bucks with him was his responsiveness and openness, so I ordered the tires.  REVCO outdid themselves, delivering the tires within 48 hours.  Fortunately Lloyd at Mostly Ironheads can install tires, but not balance newer rims (he focuses on heavy metal from the 20th Century with spoked rims, not racing alloy rims).  It wasn't a worry though because Revco also had Counteract balancing beads, which I'm a bid fan of.  I removed the old fashioned balancing weights, installed the beads on the new tires that Lloyd installed on Saturday morning, and the 'Blade feels like it's walking on air, wearing her first new pair of shoes in over two decades.