ESE's works engine tuner

[wobbly]

So are you guys telling me you cant tune your way out of a brown paper bag?
What happened.

[F5 Dave]

I can only talk for myself when I put my hand up for a couple of slightly unlucky mistakes aided by no time & no money atm. I'm also questioning my choice of piston (YZ100 std cast) as I can't seem to keep them together at a lowly 12k peak, 12.5 over rev. Looking at Wiseco forged, but they aren't a pretty piston. Heck this is my interim slap together engine with a 51mm compromise. I would have been happy to finish. I was more than happy with qualifying earlier on Saturday. But to finish first, first you have to start the soddin' race

Av's bike didn't make it to practice, Mike's bike showed promise with Dave on board,- well I'll let him tell the story.

3rd & 4th place on the grid were empty come the GP.

[richban]

So are you guys telling me you cant tune your way out of a brown paper bag?
What happened.

To much Dyno tuning not enough track tuning. It was a white wash. 4T. 1 2 3 4 5 6 7 8. Ok thats my only rub in coz I am genuinely gutted for the lads and Lady's.

[Rick 52]

So are you guys telling me you cant tune your way out of a brown paper bag?
What happened.

It was very strange ,all the bikes should have run rich but they didn't !
My main was spot on but lean on the pilot and rich on the needle
In the rain it was running brilliant but in the arvo it lost it's edge
I'm so pleased to have got home without being lapped even if it was only 300 mts away !

[TZ350]

I have to say congratulations to the 4-Stroke boys and particular Nick Cain for winning the GP and showing what riding the wheels off your bike looks like.



James H for Second and Andrew A for third after starting from the back of the grid. And Richard Ban (4^th) and Regan Griffiths (5^th) on his Crazyman framed FXR.

Sure Team ESE and a lot of the other 2-Strokes got our Butts Kicked but off track the 4-Strokers were very social and did every thing they could to help us get out there, they are a great bunch and we enjoyed their company very much.

I thought we were going to pull it off this year, maybe even have all 2-Strokes on the Podium but as the Strokers faded away so did our thoughts of world domination.

But our hopes for at least a Stroker win in the GP were encouraged by the sight of Nathaniel mixing it at the front with Nick and then starting to open up a useful lead only to unseat himself climbing the hill on the infield, after that Nick had no real competition.



The Pictures tell it all, The 2-Stroke Boys hard at it trying to keep in the game.



While the 4-Strokes looked pretty calm.

[TZ350]

To much Dyno tuning not enough track tuning. It was a white wash. 4T. 1 2 3 4 5 6 7 8. Ok thats my only rub in coz I am genuinely gutted for the lads and Lady's.

True, to much dyno not enough track time ...... we just have not been able to get the track time needed to sort out the carb, the Beast has a problem coming back onto the throttle after shutting down for a corner.

So what happened to the the Beast at Taupo, well not sure yet. At Te Puke there was a considerable delay after throttling off before the engine came back on song. We changed to what we thought was a better needle for Taupo.

And Kel took it out in the first practice and lap one it seized when he throttled off at the end of the front straight. He came to a stop and it started again. Then going out onto the drag strip it seized again as he throttled of and started easily again after he came to a stop.

Back in the pits we changed to a richer needle and he went out in qualifying and it ran like a dream on full noise and it easily had the legs on anything he came across but it still had the throttling on again delay.

After the session he rode back to the pits and let the engine idle to a stop. After that we could not get it to go again, it looked like it had plenty of compression, there was fuel but the spark was orange and not the blue we expected.

A few pushes and we get backfiring out of the carb and exhaust. The suggestions are bad or fouled plug.

We tried two different new plugs and the spark was still orange, changed the coil and CDI, and the spark was still yellow/orange. Speedpro lent us his special old faithfull plug and then we got a blue spark.

A few pushes and we still get backfiring out of the carb and exhaust. The suggestions are now, the ignition has slipped. So off with the flywheel to check the key, all is ok there.

Now we were lucky that Brent had a timing light and sure the timing looked out, so we were double lucky that Brent also had his laptop and Igntech software so we could look at the setup and try a few things.

Pretty much everyone pitched in and helped but nothing we did made any difference.

So of to have a bit more of a look tonight.

[F5 Dave]

I forgot you took that picture. Don't know why I'm smiling like a loon, - perhaps it is the moment I have just encouraged the ring out of the groove & think I have a chance of getting back in the game, but before I noticed the small piston crack. My bike looks like a total junker next to Brents.

[TZ350]

Ok just draged the Beast out of the shed, looks like the good compression and colour of the spark at Taupo was a Red Hearing as there is no compression now.

[F5 Dave]

That would be 4 strokers with piston/ring damage. Don't look at me, I didn't jet down.

[TZ350]

Ok just draged the Beast out of the shed ... there is no compression now.

Oooops no plug .......

I was sure it had plenty of compression at Taupo, anyway got a comp tester onto it and there is 90 psi, enough to feel like plenty when pulling it over on the back wheel but way short of the 160 it was built with.

[F5 Dave]

well I finger wound a plug back into it to stop the rain getting in. Or maybe you had to give that one back to Mike.

[Buckets4Me]

Oooops no plug .......

I was sure it had plenty of compression at Taupo, anyway got a comp tester onto it and there is 90 psi, enough to feel like plenty when pulling it over on the back wheel but way short of the 160 it was built with.

come on pull the head off and show us the piston

[TZ350]

well I finger wound a plug back into it to stop the rain getting in. Or maybe you had to give that one back to Mike.

Gave that one back to Mike, I guess I didn't put another one in for the trip home.



There is the naughty little sausage, with the ring jammed at the exhaust port.

This must have happened in practice when it seized, amazing the thing ran so well in qualifying, it was still doing a good turn of speed and zipping most things in sight, I guess it just didnt want to go back out there for the main event.

[richban]

Could it be as simple as the main jet to lean. I know on my bike it was super hard to setup a main on a kart track. I did most of mine on manfield. And plug chopped after 20 seconds of full throttle. Was the new needle lean or richer on the taper? Might be why it works on the kart track and not the big track. never on the main for more than a few seconds. Just a thought. Well at least in my video there are two 2 strokes for a while.

[TZ350]

Could it be as simple as the main jet to lean.

Not sure, but I did go up a jet size before practice just for safety, we fitted a new plug for qualifying and a reading, the plug looked good. I will know more when I get the piston off and have a look at the underside of the piston crown.