3 generations of Muncies impulse bought the same GN125.....

[zach_munce]

15 minutes ago, tortron said:

Not quite

The front mount to rear mount on the 125 is about 30cm, the 250 is about 35 

The 250 top mount looks about 4cm taller than the 125.

You might just get away with making top and front engine mounts, but I think it will probably need the frame modded 

It looks like you could get the rear mounts to work

 

I think the engine will be about touching the top of the frame and the front down tube based on measuring my gn125

 

Hmmm could buy the gn250 see if it will work if not just put the gn250 in the ching chong bike

[tortron]

You are welcome to measure this engine if you want. I think there's half a GN125 frame around (no front tube) to try

 

[zach_munce]

@tortron just realised could nick the motor mounts and some of the frame and make it semi decent

[tortron]

At that point maybe consider just riding the 250

Cutting up a GN125 and a gn250 to make a gn250 might need a sniff test

 

[zach_munce]

21 minutes ago, tortron said:

At that point maybe consider just riding the 250

Cutting up a GN125 and a gn250 to make a gn250 might need a sniff test

 

I guess just to be different and the gn125 is more complete and not rusted and i know i can get ot legal in the future not sure about the gn250

 

[igor]

Many cool projects on this forum would appear to make little sense. For many of us that's a large part of the appeal.

[tortron]

[tortron]

[tortron]

 

Take this back half of a GN125 frame and cut up the gn250 if you want 

 

Will have to narrow the rear mount on the engine, or widen on the frame. This will get you a little more clearance on the top engine mount to frame. 

The front engine mount will be too far forward for the 125 frame still I think

 

 

[tortron]

Oh yeah, the gn250 has a square frame

 

I cut this abortion up so it would never see the road again

[Muncie]

DR200 or accept the 125cc is as good as it gets seems best option here. I can get fairly carried away but for this seems like to much effort for minimal gain.

[zach_munce]

@tortron have been thinking about the dr200. Do you know if i just need the engine or the ecu and things and also have you got a engine?

 

[zach_munce]

@tortron I've been starting to look at putting the mighty gn125 to street and cant find street gearing for the life of me and tires are a bit hard to if you point me in the right direction id appreciate it

[tortron]

There's basically only the one tyre available for the 16" rear (you can get a good one but you have to import it yourself). Front is fairly easy as 18" is common for rear tyres and there's 'plenty' of front/rear options available there. 

I have a heidenau scout on the front and I put at 18" rear on mine and run a shinko SR244 on that

 

Stock gearing is around 14/43 tho some years are a tooth different for no real reason

[zach_munce]

@tortron i figured out the geearing but cant find a set for a gn125 that isn't farm gearing

[tortron]

Bits4bikes.co.nz

[ultra]

On 01/06/2022 at 18:36, Muncie said:

Test ride done with no exhaust pretty peppy once it's moving but 90 ks it's on the redline with the farm gears.

Gave it a wipe with an oily rag and gotta say it's pretty mint! A puff of paint and it'll be too nice to let the kids on.

Amazed it's been on a farm and the seat is immaculate foam is soft vinyl isn't rooted gave it a clean and leather cream it's glossy as.

Tell me about farm reg? I want to get it back in system but not pay full bike reg yet.

Hey, What tyres have you got on this GN125, I cant find any dual tertian types anywhere?

[Muncie]

1 hour ago, ultra said:

Hey, What tyres have you got on this GN125, I cant find any dual tertian types anywhere?

If you want some knobblies would be keen to swap.

[ultra]

1 hour ago, Muncie said:

If you want some knobblies would be keen to swap.

Yeah I have got the original GN125 on the Rims at the moment which I want to upgrade

 

[zach_munce]

@ultra I'd be keen to swap depending where you are