XR80 With 176cc Big Bore Kit

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Category:

Autos & Vehicles

Tags:

• crf50
• xr50
• xr80
• crf
• 80

[HighVoltageScience]

@HighVoltageScience however the bottom end is worn to shit now

lots of crank play and the trany is just sloppy now

[HighVoltageScience]

@mwslayer123 hard no. work time 3 hours maybe

waiting on machine shops 7weeks to bore and chrome and bore and hone

its now a 174cc cause i got the head machined for more conpression and i ported the in and ex port with a flow bench and put 1mm biger valves in by useing grit and a drill to born/hone/seat the biger valves and i tossed the xr80 carb and cut the intake boot a bit and clamped on a crf150r carb.

i have maybe 10 hours in the bike now

[mwslayer123]

@HighVoltageScience was it hard work, how long did it take you to put it together.?

[HighVoltageScience]

@HighVoltageScience its now a 174cc cause i got the head machined for more conpression and i ported the in and ex port with a flow bench and put 1mm biger valves in by useing grit and a drill to born/hone/seat the biger valves and i tossed the xr80 carb and cut the intake boot a bit and clamped on a crf150r carb.

its a nut case bike now

it will walk a 250 two stoke off the line till 4th gear when it tops out and then the 250 will pass it

[HighVoltageScience]

@mwslayer123 it was a 124cc big bore kit with the steel sleave removed then it was hard chromed and bored and honed to mach the piston

[mwslayer123]

@HighVoltageScience How much did the big bore kit cost, and where did you get it

[bennettxr100]

I don't think it's really a 176cc. Because I got a bbr 120cc bore kit for my xr100 and I looked a lot bigger and that was only 20cc not 96cc

[stevensj13]

How the fuck did you do that? It is a top end off an XR200 or something? Crazy

[gallowman89]

@ HighVoltageScience Who made the kit.

[nickt12345678901]

Is this a kit?

How did you do it?

Thanks