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From what I can remember at Orbital, the catalyst, particularly, was affected by 4 stroke engine oils cos they contained both zinc and phosphorous....

Hi Wobbly at what angle BTDC does a reed valve start to open . Im guessing that it depends on rpm and load ?? cheers

1962-Comedy The Beverley Hillbillies premieres on CBS. 1964-,TV comedy Gilligan's Island debuts on CBS. 1969-The Brady Bunch sitcom...

Practical?

The Mayor of New York has been indicted on criminal charges related to corruption. Associates of the Mayor have had their homes raided by the FBI. ...

See my post on the previous page. This chain on sprockets joiner is traditional in speedway TQ's where a driveshaft comes off the end of a bike...

My father's solution to slightly misaligned shafts was a chain pulley on each shaft, with a piece of double-row chain around both. Worked well.

You are dead right TeeZee , but 145 opening is too much for " any " engine , and the results are skewed by the fact that any 50cc race engine making...

. I have been playing with my rotary valve converted Suzuki RG50's inlet timing. Rotary valve timing was changed and ignition and jetting...

My 2 stroke fuel injection ran 20:1 oil mix. No problems with the oil fouling the injectors or my O2 sensor. But not sure what it will do to any...

ah well, we all like constancy heh.

I see Miller says it's almost impossible to pass without hitting. The bikes with all the aero now are trucks compared to the 500's and nowhere near...

No, but he dived down the inside knowing he was likely to run wide. He said as much in the post race interview. Most of the riders didn't have a...

Did EB purposely push Martin wide though? He seemed to be wide and that was always going to make Martin go even wider.

Oil in injectors. How well do injectors deal with 2 stroke oil? Er. . I've changed from my beloved carbed HiAce to a Nissan with FI. Diluted...

These work well.

Yes, but here in Siberia we use more safe and practical machines like My friend is owner of company which produce such toys and sell a lot each...

True, I thought gel was another name for AGM but apparently not. ...

He's no fool. Majority decision of the stewards panel. As I understand it, he's going to chair it.

Well, it would have been OK if Bastianini had held his line. But he was never going to do that, and he's too good a rider not to understand that it...

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Totally agree on that - remember way back (possibly 20 years or so) one of the riders had a security team to look after him in spain?

So, obviously it's not the same thing, but I've had a couple supposedly gun riders bang into me and try run me off over the years, I'm like; if you...

Also there are plans around still to build your own.

The Dominator gyro. Centre line thrust, the best to fly and most stable. Rising rate suspension with shock absobers. Ive been thankfull of the...

Great machines ! Neil, I know that the Butterfly Monarch is no longer available, the company does not exist anymore. But is there a...

Bastianini only looked back after the event - it was a dirty move in my opinion... diving up the inside - go for it (noting it doesn't take much of a...