1985 XL250 motor, rebuild or replace ideas?

**hayd3n** · 13th April 2013, 13:14

ok so last year i revinned a 1985 xl250 rfvc, now the engine has sprung a leak,
cracked head and stripped head bolt in the cylinder housing

it has a great gear box (6speed) and ive managed 125 out of the old bugger)

options

1replacing the xl250 head with another and re tapping the cylinder casing
(if i cant find a good one )

2 fitting a gn250 motor loom etc (reliable easy for parts)

3 getting a loncin or similar to fit,

4 finding a alternate head that will bolt one??? xr? cb???

5 make it electric ( i dont know about legality and cert stuff)

any help would be great

sorry if ive posted in the wrong place, seems fitting

**ellipsis** · 13th April 2013, 13:32

...save yourself a lot of angst and money...option 3...CBD250...

**hayd3n** · 13th April 2013, 13:45

just found this so possible xr200 will fitt http://homepages.paradise.net.nz/olaf/puzzlemint/xl250/

**hayd3n** · 14th April 2013, 11:27

??????????????????????

**ICE180** · 14th April 2013, 16:58

I have the top end for a GB 400 /XR 400 if you want to look at that for an idea it might fit

cylinder piston head etc you could use ya gear box etc

**hayd3n** · 14th April 2013, 19:27

Originally Posted by ICE180

I have the top end for a GB 400 /XR 400 if you want to look at that for an idea it might fit

cylinder piston head etc you could use ya gear box etc

hymmmm i will post a pic of the head/ and barrel and can you do the same?? plz

**hayd3n** · 14th April 2013, 21:49

the cylinder hole bolts are 76mm apart centre to centre with 10mm bolts

**ICE180** · 15th April 2013, 08:36

the 400 cylinder bolts are 100mm apart with 10mm bolts

bugger

**hayd3n** · 15th April 2013, 17:41

Originally Posted by ICE180

the 400 cylinder bolts are 100mm apart with 10mm bolts

bugger

bugger,
are you refering to the ones that bolt to the crank case ??
or the head???
crank case 76mm
head 100mm

**hayd3n** · 20th February 2014, 19:47

so i finally got offmy arse and bought a gn250 to strip and make fit into the old xl250

now what should i name this thing

**Yamahardman** · 20th February 2014, 21:07

Originally Posted by hayd3n

so i finally got offmy arse and bought a gn250 to strip and make fit into the old xl250

now what should i name this thing

you're a madman.

**hayd3n** · 21st February 2014, 16:36

Originally Posted by Yamahardman

you're a madman.

lol...... 10chrs

**cowpoos** · 21st February 2014, 18:33

Originally Posted by hayd3n

ok so last year i revinned a 1985 xl250 rfvc, now the engine has sprung a leak,
cracked head and stripped head bolt in the cylinder housing

it has a great gear box (6speed) and ive managed 125 out of the old bugger)

options

1replacing the xl250 head with another and re tapping the cylinder casing
(if i cant find a good one )

2 fitting a gn250 motor loom etc (reliable easy for parts)

3 getting a loncin or similar to fit,

4 finding a alternate head that will bolt one??? xr? cb???

5 make it electric ( i dont know about legality and cert stuff)

any help would be great

sorry if ive posted in the wrong place, seems fitting

how about you get a match and some petrol....burn it and get a decent bike?? just my opinion!