Alanf’s blog…
Scattered thoughts

Tuesday, December 21, 2004

Box of Shame #4: Beware the temptation of the parts catalog…

Author: site admin
Category: The Box Of Shame

In the Spring of 1998, I brought my GSXR to a track day that our local riding group had put together. I’d prep’ed the bike but it was running poorly and seemed to be running really rich with the spark plugs fouling whenever it was ridden hard. It was also overheating on hot days, which seemed the opposite of what I would expect from an engine which appeared to be running rich. After a few laps on the track, the bike really began to degrade until eventually it didn’t have the power to out-drag a BMW K100RS on the front straight. Clearly this was more than just a jetting problem. Since I planned to ride the bike on an eleven day trip through the Pacific NW in July, this problem would have to be addressed quickly.

Back in my garage, I did a compression test and found that all four cylinders had very low compression. I added some oil to the cylinders and tried the compression test again, only to get the same numbers. Clearly, the valves were the culprit. I tried a valve adjustment, followed by another compression test, but the numbers didn’t improve much. Since that meant either valve seats or valve guides, I called my local shop and arranged to have the head rebuilt.

Just before I brought the bike in for its scheduled head overhaul, I got to thinking about how sloppy the second gear shift had been feeling. I called the shop back and asked if they could install new shift forks “while they were in there”. They said “sure” and that is when things started to snowball. The shop called me back the next day and mentioned that they might as well replace the transmission gears as well, after all once the transmission is apart for the forks there isn’t an additional labor charge to rebuild the whole thing. “Okay”, says I, “how much more can that cost?”

When I brought the bike in to the shop, I got to talking to the mechanic. Marv Rosencranz is an ace mechanic, responsible for building some of the rocket race bikes ridden by local fast guy Ricky Orlando. He’s worked on GSXRs for a long time and casually mentioned how cheap the Wiseco piston kits where for the old oil-cooled GSXRs. Well, now, how could I pass up something so cheap? I mean, after all, they already had the motor apart so how much more could it cost?

It turns out the root of the problem was worn valve seats. They’d finally been hammered into the head, reducing their contact with the valves. The seats needed to be replaced and re-cut. The valves were serviceable but the exhaust valves had definitely been cooked due to poor valve seat contact. Since I was already replacing half the motor anyway, I wasn’t about to put questionable valves back in the head, so I had them order up a new set of those too. Do you see where this is going?

GSXR engine leftovers

In the end, the motor was over-bored to the max allowable by the stock cylinder liners. New stock valves, valve seats and valve guides were installed. A five angle valve job was done. The cam was resurfaced. Wiseco pistons were installed, bringing displacement to 1110cc. New transmissions gears and shift forks were installed, along with a new shift star. New clutch plates and springs replaced the old ones. All new gaskets and seals. The bike was re-dyno’ed making a touch over 125hp, not bad for an ancient oil-cooled GSXR. The total cost was roughly the asking price for a good condition used ‘88 GSXR1100. Ouch.

All the old parts were put in the Box of Shame to remind me not to let projects get so out of hand in the future.

Then, one week later, I loaded up the bike and headed for the Pacific Northwest, were I re-learned the lesson about touring on a bike before you’ve found all the little problems caused by doing last minute repairs but that is another story…

\’Et up with it…

Author: site admin
Category: MotoGP

In the south, we have the saying “Et up with it” (short, presumably, for “eaten up with it” which is itself a long way of saying obsessed).

For the past few weeks, I’ve been reading the biographies of some of the greats of Grand Prix including Barry Sheene, Mick Doohan and Wayne Rainey.

While Sheene certainly was a playboy and a media hound, he was also so obsessed with motorcycle racing that he was willing to come back from two different horrible accidents to race and win. His accidents at Daytona in ‘75 and Silverstone in ‘82 were worse that most racers will ever experience, yet neither prevented him from getting back on the fastest bikes in the world and winning races at the highest levels of competition including the ‘76 and ‘77 Grand Prix world championships. Sheene probably carried more metal in his body than any other racer in history.

Wayne Rainey is perhaps the poster child for being ‘Et up with it. Primarily because of his complete dedication to the task of beating rival Kevin Schwantz but also for obliterating all the other competition in route to his three Grand Prix world championships before his tragic accident and resulting paralysis in ‘93. Any photo of Rainey from that time period shows the complete and intense focus with which he approached racing. The bike he rode in ‘93 should, by all rights, have run mid-pack because of its handling woes but Wayne through the force of his own will made the bike challenge for wins. It eventually cost him the ability to walk.

Doohan Wheelie

Finally, Mick Doohan’s gruesome accidents before becoming one of the most dominant riders in the sport provide the most contemporary example of being Et up with it. Mick lost part of a finger, badly broke his arm and broke his wrist in different accidents before “the accident” at Assen in ‘92 which nearly lost him his leg. Despite this physical punishment, Doohan’s drive to compete and win brought him back again and eventually launched his spectacular string of five straight world titles. The famous photo of the fragile looking Doohan in an Italian hospital with his legs sewn together shows the depths of his obsession better than any story possibly could.

There are other stories, thankfully less dramatic but that equally illustrate the dedication required to win at this level of racing. Freddie Spencer’s meteoric rise and rapid fall from GP glory. Schwantz’s battered wrists which, despite over a decade of healing, still cause him problems. Even Criville suffered serious health problems after his ‘99. It seems that most of the riders, perhaps Lawson and Roberts being the exceptions, left MotoGP after paying a physical toll much more severe than most racers would ever consider paying.

So what does this history stay of the current MotoGP stars? First, it would indicate just how focused Rossi has probably become after his switch to Yamaha. In interview after interview, Rossi says he has completely changed his approach to racing in order to get the Yamaha to the level where it can win races. Perhaps this history also explains why riders like Biaggi, Barros and Capirossi have always seemed to lack just that little bit extra necessary to run with Rossi. The risks they may have to take bring dire consequences and the recent history of the sport offers ample warning. Biaggi, Barros and Capirossi were all racing during the time when Rainey crashed at Misano, Doohan crashed at Assen and Doohan’s final crash at Jerez. Rossi was just getting started in that era…

I also wonder about the current crop of young riders, particularly Nicky Hayden. Does he have the focus and dedication to win at this level? Will he reject the temptations of Europe, where MotoGP riders are treated like superstars, and become ‘Et up with being a world champion? Given the stories of these other stars, should he? Maybe Rossi has forged a new path to stardom which won’t exact the price that the champions of the 70s, 80s and 90s had to pay.

[image from Mick Doohan web site