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Author Motocross Day.
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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16th Nov 13 at 18:32   View User's Profile U2U Member Reply With Quote

First out this year on the bike today, bought it last December and rebuilt the top end and fitted loads of new parts replacing old.

First time at this track - The Ranch in Stanford.

The track was awful, heavy clay clinging to the wheels and every other part of the bike, managed 2 laps! Which was also 1 lap more than all the others managed today!

Bike ran like a dream, the rebuild has properly freshened it up and it's insane when the power valve opens up! Did more runs up the 1/2 mile track running to the circuit than on the circuit.

Did have an off though, ended up hanging off a corrugated tunnel roof after I overshot a corner by the front wheel! I came off and my mate didn't see me and lost his bike as he was braking to avoid me. I've shafted my plastic radiator cover, no dramas. He bust his front brake lever.

Last open day of the season at that track, got a free voucher for a day next year though as we have it our best.

[Edited on 16-11-2013 by Tiger]
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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16th Nov 13 at 18:35   View User's Profile U2U Member Reply With Quote

http://instagram.com/p/gxehDNozjV/

http://instagram.com/p/gxp-mjozvO/

http://instagram.com/p/gyJgPxIzh0/
_Allan_
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Registered: 24th Mar 04
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16th Nov 13 at 19:03   View User's Profile U2U Member Reply With Quote

Awful conditions but looks fun
jay26
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Registered: 22nd Feb 08
Location: North Lincolnshire
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16th Nov 13 at 19:38   View User's Profile U2U Member Reply With Quote

Been at the Skegness beach race today, epic day
SVM 286
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Registered: 13th Feb 05
Location: pain
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16th Nov 13 at 20:32   View User's Profile U2U Member Reply With Quote

Christ! That first image. Proper sticky.


Tiger, where is the power valve situated and what operates it?
Graeme
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Registered: 26th Jul 04
Location: Northampton
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16th Nov 13 at 21:14   View Garage View User's Profile U2U Member Reply With Quote

That must of been awful in a 2 stroke. Yz125?

Must of been dropping into the corners.

Haven't used my bike in around 7 months. And won't be for another 6 due to shoulder dislocation.
Rickavo
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Registered: 2nd Jul 09
Location: Manchester
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16th Nov 13 at 23:55   View User's Profile U2U Member Reply With Quote

Yzf 250 here

Was out today and been out for the past 10 weekends or so, all been very very wet but I love going all out speedway so i like it
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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17th Nov 13 at 01:09   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Graeme
That must of been awful in a 2 stroke. Yz125?

Must of been dropping into the corners.

Haven't used my bike in around 7 months. And won't be for another 6 due to shoulder dislocation.


It was a struggle yeah, rear was just spinning as it was so heavily clogged, had to push it up the tabletop!
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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17th Nov 13 at 01:11   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by SVM 286
Christ! That first image. Proper sticky.


Tiger, where is the power valve situated and what operates it?


The power valve is on the front of the cylinder barrel, it's operated by a small linkage that opens it when you hit a certain rev range and Christ you can tell when it's open!!
Seany
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Registered: 13th Dec 06
Location: Dunfermline, Fife : Drives Astra cdti Sri
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17th Nov 13 at 09:08   View User's Profile U2U Member Reply With Quote

Once you got to a certain rpm on my old TM 250 it was like a whole different bike. It just took off once you hit that power band.
Miss my old bike and keep saying I'll get another but the mrs thinks I will kill myself
Not into all this 4 stroke though, much prefer the power and noise from a 2 stroke.
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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17th Nov 13 at 15:13   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Seany
Once you got to a certain rpm on my old TM 250 it was like a whole different bike. It just took off once you hit that power band.
Miss my old bike and keep saying I'll get another but the mrs thinks I will kill myself
Not into all this 4 stroke though, much prefer the power and noise from a 2 stroke.


There's nothing like a 2 stroke power delivery! Hard and up high!
johnny86
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Registered: 15th Feb 10
Location: in a bus stop.
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17th Nov 13 at 18:46   View Garage View User's Profile U2U Member Reply With Quote

I had an 2009 Tm250 supermoto was much quicker than my yzf426 was immense
Seany
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Registered: 13th Dec 06
Location: Dunfermline, Fife : Drives Astra cdti Sri
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17th Nov 13 at 19:11   View User's Profile U2U Member Reply With Quote

Mine was an 2002 but was used in some championships so had uprated suspension and bits and bobs. Used to destroy spark plugs. Had to be ridden hard all the time or the would get fucked too. Not the most common of bikes but seemed a hell of alot faster than my mates 400
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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17th Nov 13 at 23:42   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Rickavo
Yzf 250 here

Was out today and been out for the past 10 weekends or so, all been very very wet but I love going all out speedway so i like it


Do you do your own work on the yzf? I'm put off 4 strokes for the fact they aren't as simple to maintain as the 2 strokes, all the shimming and stuff on the top ends.
spencer88
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Registered: 6th Oct 08
Location: cornwall
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18th Nov 13 at 11:14   View User's Profile U2U Member Reply With Quote

Loved my KTM 125SX, spinning through all gears on grass

Never got in to proper racing on it.

My friend got in to racing Quads, proper mental!
Graeme
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Registered: 26th Jul 04
Location: Northampton
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18th Nov 13 at 18:05   View Garage View User's Profile U2U Member Reply With Quote

Much prefer the power of a 4 stroke any day.
Tiger
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Registered: 12th Jun 01
Location: Leicestershire Drives:Astra VXR
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18th Nov 13 at 20:23   View User's Profile U2U Member Reply With Quote

There's very little power and torque difference actually between the yz125 2 stroke and the yz250f 4 stroke of the same year (2003 for example).

But then if you were going 4 stroke, you'd probably be looking at 400cc and above.
Rickavo
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Registered: 2nd Jul 09
Location: Manchester
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19th Nov 13 at 19:25   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Tiger
quote:
Originally posted by Rickavo
Yzf 250 here

Was out today and been out for the past 10 weekends or so, all been very very wet but I love going all out speedway so i like it


Do you do your own work on the yzf? I'm put off 4 strokes for the fact they aren't as simple to maintain as the 2 strokes, all the shimming and stuff on the top ends.


I change the oil every 3 , filter/clean pick up every 6 rides
And I check clearances myself but get my mate to do the work

The thing with 4stroke v 2 is that yes it's dearer to rebuild etc.. But it lasts longer (In most cases)

 
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