[McBiggity]

So after my season of cursed EX500's, and another friend having problems with his bike, we formed a new race team for next year.

[bigred875]

[OreoGitorio]

HAH that's great

[legalspeed]

[Paul_E_D]

Did you find out why it overheated? Blown head gasket is the usual culprit on the EX. Head off, cylinder off, lap the surfaces on a flat glass with some lapping compound, and reassemble with no base gasket, and a cometic head gasket. You'll never have to do it again...

[McBiggity]

still not sure. I may have a spare motor I can borrow from a friend for the last race weekend.
But I will be fixing this motor over the winter, I've heard good things from the NEAR list about the lapping.

[Paul_E_D]

It's easy to do. There is no complicated disassembly required. You could easily do it for the next race. Did anything else break, or you shut it down when it overheated?

[McBiggity]

well- there is a nasty knocking coming from the motor now as well.
Probably didn't shut it down fast enough once it was overheated.
That knocking is what's making me think I won't have enough time to fix it before Oct.

[Paul_E_D]

Mmm... knocking is the death knell. Time for the 500 dollar tune up (new motor). FOG may have one. Talk to Dana Temple or BJ about it. sell the old one to a rebuilder to recover some cost. Or rebuild carefully over the winter...

[McBiggity]

yeah- although FOG has now moved to Arkansas.
I'll be able to find a used motor over the winter. not too worried about that.
Just really want to enter/start/finish one more race this year. I really felt like I was making progress.

[McBiggity]

well- got a spare motor that I am borrowing from a friend. Just need to make sure I don't blow this one or I owe him $500.

[Paul_E_D]

Shift at 9500 rpm... and delay your downshifts - at least a second between downshifts on the brakes.

The over-rev on downshift is the real trouble. Rev-limiters don't stop that from happening.

[McBiggity]

i don't think I ever downshifted more than once coming into a turn on my old ex500.
The only time I would have was coming from 4th into 2nd for turn 3.
But that ex kept popping into neutral in second gear, so I had to suck it up and take turn 3 in 3rd gear.

[daviid]

sorry to hear that mike. although that may mean i just wont finish last next yr!