Hyosung GT250R mods on a budget

[wanpo]

ok, I'll give 91 a shot, I generally try to run 98. I'm only filling up like $5 bucks at a time at the moment, cus I'm still trying to mod the air filter to fit over the top of the carbs and make it more weather friendly. (Lifting off a full tank every time isn't fun; that and I think my fuel cap isn't air/petrol tight)

[CookMySock]

Lifting off a full tank every time isn't fun; that and I think my fuel cap isn't air/petrol tight

It isn't supposed to be airtight - it has to allow the tank pressure to equalise or the engine will run lean and eventually cut out. There is actually a fuel cap mod to unsure this happens properly.

You do realise there's an automatic (engine vacuum operated) fuel tap on the tank? Just pull the hoses off the tank and let a few teaspoons of fuel run out, and then it stops flowing. Step away from the bike for 1-2 minutes while the fuel evaporates off the engine area. Consider having a fire bucket on hand at least.

Steve

[wanpo]

yeah I heard it had an automatic vacuum seal, but in practice.... had to plug up the fuel line with metal rod cus it didn't stop flowing and I couldn't turn the tank upside down, cus the fuel would come out of the cap, so now I'm just putting small amounts of fuel in until I no longer have to work on it.

[CookMySock]

There's something wrong with the vacuum tap then. Not that it will affect normal operation of your bike.

Steve

[sapperj]

Thanks to all the great advize from you all here, I have done the following.
1. Cycleworks performance muffler
2. Air box mod, became K&N filter
3. CDI Mod, allready done
4. Up 2 jet sizes (F=97.5 >R=100)

Special thanks to TrippleZee Cycles, Kaiweka Suzuki, Cycleworks and KiwiBiker Forums.

I had a few problems getting the correct jet numbers for ordering,
FYI: Carbs are 'BDS 26' Jets are Mi-N 102.604 / 100 where 100= Jet size

[CookMySock]

Nice!

Now to mod those chickenstrips!

Steve

[Hiflyer]

Nice!

Now to mod those chickenstrips!

Steve

Haha that should have been the first mod before any performance upgrades

[gatch]

Haha that should have been the first mod before any performance upgrades

Agreed. You can gain an extra 20 hp on a 250 by learning to ride it.

[sapperj]

Chicken strips???

So where do I learn to ride a 250 superbike lol... Looks good in my garage :P

[sapperj]

Right........... chickenstrips lol. So how far do you push 2 week old Shinko's?

[CookMySock]

how far do you push 2 week old Shinko's?

Properly warmed up, on smooth dry surfaces - as far as you like.

Steve

[Hiflyer]

Properly warmed up, on smooth dry surfaces - as far as you like.

Steve

Or you could get some Battlax bt 45's theyre much better than shinkos,

although on my old bike, the shinkos had smaller chicken strips, but I could never seem to wear them off on the BT45's for some reason?

EDIT: Shinko's are fine don't get me wrong, but there are better tyres out there

[CookMySock]

I've seen heavily abused shinkos on a GT250R with no strips, ay weaver.

Mind you, the bike had been through its' share of fences, and looked fairly abused as well, so ya roll ya dice and ya pays ya money!

Steve

[gatch]

The thing is with crap tyres, they wont give any sign you are close to the limit of grip, they will just let go..

[CookMySock]

The thing is with crap tyres, they wont give any sign you are close to the limit of grip, they will just let go..

Nah the shinkos skitter around like you are on ice - they are fucking scary in the wet or the grit.

It's good training though, because you learn to relax and let the tires have their little tantrum - and lo and behold you are still upright!

Steve