Category: "Classic Racing"

Last meeting of 2017

November 1st, 2017

After two DNFs at the Classic TT, I was a 'signature' further away than planned for my 2018 TT Mountain Course licence (everyone calls them signatures, but nothing actually gets signed - you just need to finish a race on a day, six times; qualifying for the TT or Manx also counts for 1 'sig').  So I looked to see if I could squeeze something in before the end of the season, and it turned out the ThunderSport GB had a meeting at Donington at the end of October.  I'd run my Kawasaki ZXR750 in their Golden Era Superbike class at Mallory in the summer, but the ZXR is out of action having its broken crank replaced.  However, reading the eligibility rules, I noted that GP250s up to 1999 were also eligible, so I could give the TZ a run out! 

So I set to prep-ing the TZ, which hadn't had any attention since the Classic TT.  First job was to fix the broken gearchange linkage, and then change gearing and jetting from those used for the TT, and generally give the bike a bit of a fettle.  All ThunderSport meetings are two-day events, so I loaded the van on Thursday night and set off straight after work on Friday, collecting girlfriend Vanessa from work on the way. Of course, all the good spots in the paddock were gone by the time we got there, and were setting up in the dark, and the very high winds (of which more later).  TT crew stalwart Simon Wilson had also volunteered to help out, and he arrived at a similar time; importantly, he'd brought his powerful cordless drill with him, of which more later.  After battening down all the hatches, we settled down in the van, which Vanessa is converting by stealth into a camper van, and had a few drinks while listening to the wind rattle around outside.

Saturday dawned dry but just as windy.  I took the TZ to scrutineering, and was immediately everyone's friend, as all the scruts gathered round to admire the bike.  A GP250 really is a thing of beauty, and many lament their passing from most road racing.  And the same happened throughout the day as people walked past our awning.  But once scrut'd, we had a job to do - we drilled a large-ish hole (OK, only about 40mm diameter) in the side of the fairing, aligned with the end of the crankshaft, so that we could use the fancy socket-with-a-one-way-clutch in it, that I'd got from the USA, at great expense, as a starting system for the bike.  Instead of having to bump start it, we could now spin up the motor with Simon's drill and the socket.  This was to come in very useful later.

We had a little wait until practice, and then went out on a damp but drying track.  I had a few concerns as we gathered in the collecting area, noting that everyone else seemed to be on full wets, but I was sure my treaded KR 364s would be fine.  I had full wets with me, but it really wasn't wet enough to warrant them, in my opinion, and besides, I didn't want to change wheels just to change them back for the race, by which time it would definitely be dry.

I last rode at Donington about 12 years ago, but I seemed to remember where it went ok.  I wasn't fast, but then, as I'd found at Mallory earlier in the year, ThunderSport GB is a very competitive club.  In the mixed grid of classes I practices with, I was 36th out of 48, with a lap time of 1:29, which was some 8 seconds slower than pole. In case you were wondering, we were using the shorter National circuit, not the full GP circuit with the Melbourne loop.  This put me 19th on the grid for myrace, on row 7, but still with 11 people behind me.  That soon changed as the lights went out - a TZ250 is an awesome machine, but it's no drag racer, and the big 750 fourstrokes I was racing against (I was the only 250 out there) all get off the line a lot quicker and cleaner.  Still, I wasn't last as we all piled into Redgate, and I threaded my way through the usual first corner melee of people running wide and bouncing off each other.  I negotiated this without issue, and then got my head down and actually started racing some people.  It was fun!   As expected, the TZ easily carried a lot of corner speed compared to the 750s, but what also suprised me was how I seemed to make ground on the brakes at the end of the straight.  Of course, I was racing against the back half of the field, as the fast boys were well away, but I had people to race with, so I was happy.  When riding a TZ, you're always expecting the worst, and I did feel the bike holding back a few times when pinned in the upper gears, which made me worry.  I covered the clutch lever with my left hand, just in case (for non-bike riders: if the engine seizes, the back wheel will lock up and probably cause you to crash.  To prevent this, you pull in the clutch - fast!).  And I tried to be smoother, and to not rev the bike so hard, and not only did the problem fade, but I also set my fastest lap!   Thundersport races are longer than most club races, and we did 12 laps, by which time I was 3 seconds behind the chap in front, but less than a second in front of the person behind me.  When the flag came out, I was 20th, out of only 23 finishers.  Still, I'd got that finish which was the main point of being here.

I returned to the awning, which was only just coping in the wind.  In fact, the wind was making a bit of a mess of it.  I'd foolishly not done a plug chop on my in-lap, so couldn't really tell if the jetting was right, but I looked at the plugs anyway, and decided, based on their appearance, and the way the bike had behaved on track, that I should probably go up a jet size.  So I set to, feeling like a proper GP250 racer, while the awning shook and rattled around me.  But when I came to start the bike - it wouldn't rev properly, and ticked over at 4,000rpm.  Curses.  Simon and I took both carbs off again, checked and double checked, and eventually it was ok, without us ever really finding the real reason for the problem.  While troubleshooting this, being able to start the bike with the drill was utterly invaluable.

We had plentyh of time for this, it was getting on for 5pm when we lined up for race two.  I got a decent enough start, and was racing with the same set of people, but on lap four the bike just didn't pull properly in the powerband.  It was still running, but the real power had gone missing, and I know now that on one of these bikes, you stop as soon as you have a problem, so I pulled into the pits.  So that was race 2 done.

When I got back to the awning, we realised that we only had an hour or so of daylight, and it was cold, and the awning was still threatening to become a huge kite. We had a look at a few things - first idea was that the electrical system and/or battery had a problem, and the power-valves weren't working, which would match the symptoms, but a quick test showed that there was a healthy 13.5 volts or more in the system, and the power-valve servos cycled correctly when the system was powered on.  So, in the fading light and gale force wind,  I decided these were not the circumstances under which Simon and I might diagnose and fix the problem, and so made the decision to cut my losses, pack up and come home.  Not a great end to the season, but who turns and runs away...

So now I have two broken race bikes to repair over the winter.  It's a good job I enjoy working on them; this is not sarcasm, as I really do find time in the garage working on bikes very relaxing.  I'll post an update when I find the issue with the TZ.

That's racing - Take 2

August 30th, 2017

Yesterday was another day that, on the surface, should make one wonder why I bother with this game.

The Classic Superbike race was scheduled for Monday 28th Aug, but the day dawned very foggy, and before the fog lifted the rain arrived. The Clerk of the Course, Gary Thompson, is pretty good at judging the probabilities with the weather, and he cancelled the days racing before midday. So our race would be on the Tuesday. This presented its own problems, as we were booked on the ferry for Tuesday evening; I'd booked this for this very scenario, but still, racing in the afternoon and then stricking camp and loading the vans for a 7:45pm ferry would be a tall order. So I phoned the Steam Packet and managed to push our crossings to the next day (with a combination of freight and passenger ships). There was nothing to do for the rest of the day, so we busied ourselves doing just that.

Race day dawned dry and fog-free, but cold. Still, I knew I wouldn't be cold when racing the ZXR750. Roads closed later than usual, at 11:30, due, I'm told, to the requirements of the local crematoria. But the Junior Classic got away at midday, and then there was a parade lap and we were scheduled for 14:40; there was a slight delay, but the front guys started at 14:50. I'd only qualified 48th (out of 74), so with the bikes starting at 10 second intervals, I had a fair wait until it was my turn (8 minutes, to be precises). But I was soon paddling the bike to the line, the manx flag was waved and I was away down Bray Hill again.

I'm starting to feel quite relaxed riding the TT course, and I'm not sure whether that's a good or bad thing. Still, I hoped to pick up some pace on the 109mph lap I did in practice (which was already the fastest I'd been on this bike), and I also knew that Dave Madsen-Mygdal was starting just one place and 10 seconds behind me; Dave has the record for the most starts on the TT course, and I knew he'd be chasing me down. But I had someone to chase myself - Forest Dunn, #67, on a Suzuki had started in front of me, and as I braked for Quarterbridge I could see him rounding the corner in front, which is always a good sign. I chased him along the very fast early sections of the lap, making ground slowly but surely; this was a good sign itself, as there was no recurence of the fuelling problem we'd experienced at top speed during practice - the last fix we'd found had obviously made the difference. As we went through the twisty Glen Helen section he came noticeably closer, and as I headed up Creg Willys Hill I was on him, and passed easily enough along Cronk-y-Voddy. I got my head down, hitting my marks and references, and felt good. But I wasn't as fast as I thought I was, or I'd provided a tow for him, because as we braked into Parliament Square in Ramsey, some 10 miles later, he came alongside and went back ahead.

This was nothing to worry about, and I was still 8 or 9 seconds ahead of Forest on corrected time (as he'd started 10 seconds ahead of me). I chased him up the mountain, planning when to get back in front, but as we headed onto the Mountain Mile two other bikes came past me - Dave Madsen-Mygdal on his venerable Honda RC30 (5 years older than my 25 year-old Kawasaki) and Michael Russell on another ZXR like me. Michael had caught Dave too, and was quite forceful in getting past Forest at the Veranda. Dave made his way past too on the run to the 33rd, and this meant that if I wanted to learn anything from Dave (which I did), I needed to stay in touch. I got great drive through Kate's Cottage and outbraked Forest into the Creg. But it was to no avail - Dave was just plain faster than me, and crept away, corner by corner. Still, I now had my head down and a clear road in front of me. I flashed past the pits, giving my crew a thumbs up, intended to indicate that the fuelling problem was resolved (which they correctly interpreted) and headed out on lap two.

This lap was much lonelier - I didn't catch anyone, and no one caught me. But it was good all the same, and I managed to keep up my pace (more later). Some 20 minutes later I was back at the pits, this time for a fuel stop - we were halfway through the race. Simon and Alex performed flawlessly - fuel went in, I had a drink, Simon cleaned my visor, and around 30 seconds later I was heading back out again. While stopped, I saw that James Ford was stopped just in front of me, also getting fuel - he'd started 20 seconds in front of me, so I'd also definitely made time on him. I used my fancy pit-lane speed-limiter (which I'd tested in practice) and flicked it off as I crossed the pit lane exit, causing the bike to wheelie enthusiastically, and then we were heading down Bray Hill once more. I took a little care at Quarterbridge, mindful of the fresh tank full of fuel, and then fired the bike towards Union Mills. I've decided that riding the TZ250, which carries so much corner speed, has improved my riding on the big bike - I was changing down less, and carrying more speed everywhere, or so I thought. As I crested the start of the Cronk-y-Voddy straight, I saw a bike in front of me - it was James Ford, and I was winding him in. He was noticeably closer as we entered Kirkmichael, and I knew I'd be on him soon.

Or so I thought. On the exit of Kirkmichael, there was a noticeable vibration from the bike. At first I didn't know what it was, and was actually scared it was something on the cycle parts, which might cause a crash, but it quickly got worse and started to sap engine power - it was an engine problem. As I headed through Bishopscourt it was obvious that I was going to have to retire, and I just hoped to get to Ballaugh, a mile up the road (and which can be accessed from outside the circuit). I only just made it - as I changed down, the engine died, and I coasted in. Damn damn damn.

I contacted my crew, Alex came to get me, we recovered back to the pits after the race, and then headed to the beer tent to drown our sorrows. This might seem like a disaster - two starts and two DNFs ('did not finish'). But racing on the TT course is not like that - I primarily go there to ride the fantastic and challenging circuit, and I'd done plenty of laps in practice. And I'd found good speed too - the first two laps of the race on the 750 had both been at 111mph, which is the fastest I've been on that bike by some margin - last year my fastest lap was 108mph. And the TZ250 had been reliable, with none of the problems from last year, and I'd retired on that for a trivial and stupid reason. Most importantly, we'd had fun as a team, enjoying the camaraderie that comes from living and working together in the paddock. And lastly, it'd been safe - I had no 'moments', and in fact the whole race meeting had been relatively incident-free, with only a couple of people taking a tumble, and no serious injuries.

But I'm still cheesed off, generally, and will be back next year!

Have we found the problem?

August 28th, 2017

After the retirement in the race, and then the drinking and the hangovers, on Sunday morning our attention turned to addressing the ongoing problem with fuel starvation at peak speed and revs on the ZXR750.  By luck I'd met Robbie Sylvester in the beer tent the night before - he'd worked with Slick Bass many times over the years, and knows racing bikes inside out. He told me that the flat slide carbs on the ZXR have microfilters above the float bowls, and these can sometimes get blocked.  I didn't know this, so it gave us another avenue to investigate.  I got myself a good strong cup of tea and started.  Race bikes are usually great to work on, as everything is designed for access, and there's nothing unnecessary in the way. The carbs were soon off, and I cleared space on our bench, turned them upside down and removed the float bowls and floats with needle valves.  The needle valves sit in little brass seats, which located with o-rings in the carb body (Robbie advised that sometimes these o-rings perish and cause problems). I removed the first seat, which came out with its little microfilter sat on top, which is no bigger than your little finger nail. And there, sat on the filter, was a large-ish blob of something that should't be there - some flake of gasket goo or similar: 

So there was the smoking gun - again! We thought we'd found the problem with the loose connection to the fuel pump earlier in the week, so it just goes to show that fault-finding on complex mechanical systems is not straightforward.  We blew everything through with compressed air, swapped the fuel pump anyway, with one supplied by Manx friend Mark Bamford, and put it all back together, and went to the Jurby festival, which is always a good day out.  That evening I took the team to dinner in Ramsey, and then we stood outside in the warm evening air on the Ramsey quayside listening to live music.  Tomorrow (Monday 28th Aug) is our second race day, so let's see what fate brings.

LATE UPDATE: It's Monday morning, and the Island is covered in fog.  Racing is delayed until it lifts.  If it does lift; if not, I guess we'll be racing on Tuesday.

That's Racing

August 28th, 2017

The first race day of the Classic TT dawned bright and sunny. After being relatively relaxed all week, I definitely had race day nerves today, evidenced by multiple trips to the loo.

I didn't blog about the last practice on Friday, so here's a quick precis - I took the TZ round for a lap, with fresh slicks, a new chain, correctly adjusted gear linkage, etc, and it was all fine. I still wasn't on the pace I wanted, lapping at 101mph - I really want to be doing 105mph or faster. But the bike was all good. I then came in to take the 750 out for a quick lap to check that the fuelling problem had been fixed - but as I rode the bike to the start line, they closed the gate! The fog had come down on the mountain, and the practice was brought to a premature close. Curses. But there was a lap for Superbike practice on Saturday, before the Lightweight (250) race, so we had another chance.

Back to race day. We had two bikes to scrutineer, and then the pit crew had to fill the fuel filler in our alloted pit with 40 litres of premix (AvGas plus two-stroke oil) - 20 litres for the fuelling stop, and 20 to provide a head of pressure, as the refuelling rigs are gravity fed. The programme was delayed for a few reasons, so I spent a while standing in parc ferme in my leathers, but eventually got out on the 750, confident that we'd fixed the fuelling problem. But on the top speed run through Glen Vine and Crosby, it reared its head again - exactly the same. Curses. Instead of doing around 150mph down Sulby Straight, the timing system reported 125mph. But, taking a positive from a negative, as I always try and do, my lap time was only 6 seconds slower (which equates to about 0.5mph) and in some sections I was actually faster than my 'fast lap' on Thursday. Anyway, this was a problem for another day - next up was the Classic Lightweight race, on my Yamaha TZ250.

My start number was 36 i.e. I was the 36th fastest of the field (of around 60). Midfield is fine by me. Unlike in practice, where we start in pairs, for the races you start individually. Lining up on Glencrutchery Road is always an amazing sensation - so much history here. I'm lining up in the same place as some all-times greats of the sport - Hailwood, Agostini, Dunlop, Fogarty, McGuiness... yet another reason why I love racing here so much. But this sensation is also matched with the knowledge of what comes next - the plunge down Bray Hill, and four laps (which is 151 miles) of the TT course. But I was soon paddling forward with the line of starters, away at 10 second intervals, and then it was my turn, the Manx flag was waved and I was off.

It was nearly a very inauspicious start, as I'd put a new clutch in that morning (as advised by Billy Craine and Andy Broughton) and it bit a little more suddenly that I expected and I damn near stalled it. But I didn't and got away ok, and headed down Bray Hill. I caught a glimpse of two bikes that had started in front of me as I braked for Quarter Bridge, and was hopeful that I'd have someone to chase...I saw them again as they peeled into Braddan Bridge, but that was the last I saw of them! I then did a lap all by myself, catching no one, and being caught by no one. The bike was running well, and I was still learning how to ride it on the TT course. Every corner needs the right gear, and I was still putting together the mental map of the gear changes required.

I flashed past the pits to start lap two, giving my crew a 'thumbs up' as I went (though I later found they thought I'd been shaking my fist). Lap two was mostly much the same, until the end of Sulby Straight where another bike, #50 I think, out-braked me into Sulby Bridge. As I knew he'd made at least 10 seconds on me, there's no point getting race-y with him, but he provided a useful reference point for me to focus on. And it seemed he didn't like the bumpy section from Ginger Hall to Ramsey much, as I quickly closed up on him, and in the right left kink before Miln Town Cottage (does it have a name?) he slowed so much that I had no choice but to go back past him. I got my head down and tried to not hold him up (he had made 10 seconds on me, after all) and we flew through School House, into Parliament Square and up to Ramsey hairpin. I left plenty of space in the hairpin as I slipped the clutch on the way out, but he was still behind me as I accelerated up towards the Waterworks, grabbing gears until...oops, where's the gearlever? I looked down, and the gear linkage had broken. My race was done. Damn.

I pulled to the side and put the bike on the pavement, safely behind a bale, and walked down to the marshals point. They looked after me, as marshals always do with retirements, and when the race ended, I was able to paddle the bike down the hill to the slip road inside the hairpin and get access to the coast road. I'd already told the team what had happened, and Alex was there with the van already. We drove back round to the paddock, unloaded the van, and all had slightly glum faces. But, as the old saying goes - "That's Racing". Compared to what happened last year, when the bike seized and threw me up the road at over 120mph, a broken gear linkage was very little cause for misery. I'd put Loctite on the thread of the bolt that had come loose, and checked it for tightness that morning too!

Here's a photo of the failed linkage

TZ broken gearchange

I showered, and went to the beer tent with the team. We paused to eat, and went back to drinking, as is traditional after a race, whatever happens.

Gremlins fixed...we hope

August 25th, 2017

I'm writing this just before the last evening of practice.  

After the problems in yesterday's practice, we set to this morning.  The problem with the ZXR750 was found fairly quickly - one of the wires in the connector that powers the fuel pump had started to pull out.  So that was easily fixed.

The TZ gear change now had two slightly bent rose joints, down to my lead foot and misadjustment.  I replaced them, set it up nicely, tested it with the engine running and me sat on the bike with my boots on.  So that's good too.

Let's hope the weather holds...