FXR150 engine modifications?

[F5 Dave]

Don't forget to make sure the valves have enough room. Don't want to put them into the pusstion. Speaking of the Pusstion. The one you are running is cheap and shit. It will work fine as is, but you start making a bigger bang and it will need to be upgraded. Plenty of those pistons have given up and caused major engine death when more power has been asked of them.

Using the pusstin to close the valves instead of spring pressure is actually a top tuning trick. Not having to use heavy valve springs & a mechanical valve closing. That's Desmodronic baby,. . . just applied from the other side, so one part doing two jobs. Colin Chapman would have been impressed.

[NOID]

POWER TO WEIGHT ...... put the fxr on a diet, there is alot of weight in the frame, if you sit down and look at some engineering/frame design books you may find that the frame could loose alot of it beef - im not sure what yourve already done but heres some simple cheap options, grind/cut off all non needed tabs and welds / cut off rear subframe and redesign/build from alloy. fibre glass tank with 2L fuel cell under. look into a Ti exhaust piping, lighter 17inch wheels. go for a run or eat less aswell, the less weight your engine has to push the better.

So to some it up become a midget with Ti framed, stock fxr engined bike and ull have no issues

[Henk]

He has already thrown the frame away and replaced it with one from a ZXR250 (I think) but he should drill some lightening holes in those huge spars. I'll bring a holesaw next time I'm heading down that way.

[F5 Dave]

and I'll pitch in a coping saw to play connect the dots


and yeah lose some weight Hamish you porker Maybe get a haircut, clip your toenails real close. . .

[richban]

and yeah lose some weight Hamish you porker Maybe get a haircut, clip your toenails real close. . .

Pre race colonic and a good hard vomit! 2kg at least.

[F5 Dave]

I still don't think you'd find that much spare in him. I'm full of shit so I'd lose 3kg for sure.

[koba]

I still don't think you'd find that much spare in him. I'm full of shit so I'd lose 3kg for sure.

My before/after weighing experiments with the scales at work show that 300g is an above average yield.

[quallman1234]

My before/after weighing experiments with the scales at work show that 300g is an above average yield.

Which creates the question. Is taking a shit or taking a piss, the better way to lose weight.

[gatch]

Which creates the question. Is taking a shit or taking a piss, the better way to lose weight.

Both for maximum losses.

Or gains, depending on your perspective.

[F5 Dave]

don't forget to blow your nose & have a jack as well.

[Buddha#81:Me]

Another KB thread dragged into the gutter! Good work fellow bucket people, love ya work!

[koba]

Which creates the question. Is taking a shit or taking a piss, the better way to lose weight.

A Piss, usually aroud a pint (600ml) for a bladderbuster but with diligent training and focus it can be twice that.

[koba]

Another KB thread dragged into the gutter! Good work fellow bucket people, love ya work!

Cheers, we get better at it all the time

[Arronduke]

Dont forget to drink heaps of piss the night before as this will kill shit loads of brain cells and make your brain lighter...

Fill your tyres with Helium ... about 100psi and the bike will want to float.... now to think of it... oil is quite heavy...

[gav]

OK, just out of interest, any idea how much hp your bike has at the moment, Hamish?
One of the guys here managed to find 1.5hp just by getting the exhaust sorted after using a dyno. Had a pretty decent pipe on it to start with, well, you would've thought it was decent. He's now got around 20hp at the rear wheel. Are you all running the same gearing? Maybe try and swap bikes and see who is faster?