Street Stock 250cc 4-stroke twins

[chaos rider]

What are hyusung parts made of?

Cast iron and Lead?

Did you weigh all the bits complete or separately?

Does your bike still fit the rules?

Pacific club are running there 4stroke 250 class(open to all 4 strokes, no cylinder limit, not resticted to twins) with the 150ss, this class is starting to get more entrys and will not be stopped when this new twins class comes in,
It wil probably be run all i the same race. ie 150ss, 250 4stoke (open) and 250 twins, 3 classes in one race
Like how Pro twin(650) has restictins and a SV650(or whatever other 650) in F3 can be modifyed, they still all race together in the same race but 2 classes

I will call Nigel from pac club and ask about this new class and confirm whats happening when the Summer Series starts

well poly propoline isnt light, and itc with the amcc so im not sure how much info you will get

Good on you for wanting to win. Show me a dyno sheet . I bet $20 it wasn't making 30hp at the wheel. De snorkeled the air filter? Have you jetted the carbs to suit? Ther is no fuel limiter, it is a diaphragm to stop fuel flooding the bowls whilst the engine is off.

um that diafram does alot more then that. and ive tried to explain it befor. it only lets fuel through when the pistons draw in from the carbs hence it limits fuel. and ive not had a prob with the bowls flooding, i think its a load of bull realy. well if you want to pitch in some money so i can waist ie getting a dyno done that will tell me nothing helpfull then sure. ive been taught how to smell how rich or lean and engine is running and i can also adjust air flow and exhaust to suit and im pritty good at it so i dont real need to dyno it other then to satisfy you lot realy.

fairing fill be primed and ready to paint tommorow and i will start the paint job tuesday

[ducatilover]

well poly propoline isnt light, and itc with the amcc so im not sure how much info you will get
Fiber glass is not light either, I know I work with it for a living.


um that diafram does alot more then that. and ive tried to explain it befor. it only lets fuel through when the pistons draw in from the carbs hence it limits fuel. and ive not had a prob with the bowls flooding, i think its a load of bull realy. well if you want to pitch in some money so i can waist ie getting a dyno done that will tell me nothing helpfull then sure. ive been taught how to smell how rich or lean and engine is running and i can also adjust air flow and exhaust to suit and im pritty good at it so i dont real need to dyno it other then to satisfy you lot realy.
fairing fill be primed and ready to paint tommorow and i will start the paint job tuesday

Yours does not do that chaos, it is a stop cock type, not a pump like a few Hondas use, the head pressure from the tank helps is what makes the fuel flow and the return spring on the diaphragm make it return at a certain rate, it does NOT restrict the fuel flow.
The dyno will tell you your air/fuel ratio, this will also tell you what jet size and taper you want, it will tell you if the needles need spacing, it will tell you if the springs need changing, it can tell you the ignition timing is out. HAVE YOU HAD NEW IDLE OR MAIN JETS PUT IN? You obviously know fuck all so sit back and listen to the people trying to help you, don't be an obnoxious cunt. You cannot adjust how rich your bike runs above the idle jet. So tell me Chaos, when you put a new exhaust on your hyo and if it backfires off the throttle what does that mean?

Does that mean you can smell the correct stociometric ratio? And what is the correct ratio that you smell? An exhaust gas anyliser is accurate, not these dumb rambling of yours.

[RDjase]

well poly propoline isnt light, and itc with the amcc so im not sure how much info you will get

I know you are racing with amcc chaos , i am explaning to the people on this thread that actually listen/read what is happening with the Pacific club series,

I will post whats happening after i call Nigel ( nigela on KB )

By all means come and race the pacific rounds , its a good series and very good entry numbers, the tight taupo circut will suit your bike , lots of corners = good fun

[Crasherfromwayback]

um that diafram does alot more then that. and ive tried to explain it befor. it only lets fuel through when the pistons draw in from the carbs hence it limits fuel. and ive not had a prob with the bowls flooding, i think its a load of bull realy. well if you want to pitch in some money so i can waist ie getting a dyno done that will tell me nothing helpfull then sure. ive been taught how to smell how rich or lean and engine is running and i can also adjust air flow and exhaust to suit and im pritty good at it so i dont real need to dyno it other then to satisfy you lot realy.

Mate...I've got a great sense of smell too...one of the advantages of having a big beak. And I smell bullshit. The diaphragm in your fuel tap is only there to open it. It has nothing to do with what goes to the carb...the floats and needle do that. The dia opens when your engine cranks over and creates vacuum. I doubt you're very good at tuning fuck all seeing as you don't actually know what the various parts are there for!

[mossy1200]

I seem to have wasted my money dyno tunning mine to find a 5% gain when chaos could smell my tailpipe to find 50%.
25 rwhp would be a good figure to obtain considering the factory would test a hundred bikes then quote the highest result out of that group of bikes and claim brake hp(linear less approx 10%)at crank(rear wheel less approx 8%) and come up with something like 27hp.
Tires,sprocket sellection and suspension dial in will equate to more time cut off a lap than a 2hp gain in tune.
Suggest sniffing tail pipe is hazardous to health.

[Crasherfromwayback]

Suggest sniffing tail pipe is hazardous to health.

hehehe...not quite so bad now we're using unleaded!

[gatch]

Suggest sniffing tail pipe is hazardous to health.

I would concur..

[Maarty]

[Chaos Rider said](um that diafram does alot more then that. and ive tried to explain it befor. it only lets fuel through when the pistons draw in from the carbs hence it limits fuel. and ive not had a prob with the bowls flooding, i think its a load of bull realy. well if you want to pitch in some money so i can waist ie getting a dyno done that will tell me nothing helpfull then sure. ive been taught how to smell how rich or lean and engine is running and i can also adjust air flow and exhaust to suit and im pritty good at it so i dont real need to dyno it other then to satisfy you lot realy.)

I think you will find everyone that this is just a huge piss-take, lets face it, nobody tunes a motorcycle by "sniffing" the exhaust! For those of us old enough to remember, Warren Caters mechanic could(?) tune wareeen TZ250 by putting his hands up to the mufflers! Then again, he was Japenese, they, after all, are the GURUs for tuning eh!
Bottom line is though, I think this chap is just taking everyone of a ride (pardon the pun) he is not serious, noone surely believes any of this drivvle do they?
Lastly, if it were true, he will have to compete in F3 as his machine contrivenes far too many rules to make it elagible for 250 Prolites!
Please people, don't encourage him! you are just playing HIS game!

[chaos rider]

Yours does not do that chaos, it is a stop cock type, not a pump like a few Hondas use, the head pressure from the tank helps is what makes the fuel flow and the return spring on the diaphragm make it return at a certain rate, it does NOT restrict the fuel flow.
The dyno will tell you your air/fuel ratio, this will also tell you what jet size and taper you want, it will tell you if the needles need spacing, it will tell you if the springs need changing, it can tell you the ignition timing is out. HAVE YOU HAD NEW IDLE OR MAIN JETS PUT IN? You obviously know fuck all so sit back and listen to the people trying to help you, don't be an obnoxious cunt. You cannot adjust how rich your bike runs above the idle jet. So tell me Chaos, when you put a new exhaust on your hyo and if it backfires off the throttle what does that mean?

Does that mean you can smell the correct stociometric ratio? And what is the correct ratio that you smell? An exhaust gas anyliser is accurate, not these dumb rambling of yours.

ok again if the diafram cuts off the fuel when there is no suction from the head intake does that maen i get more fuel? i know it limits feul becuase i lost suction in the pipe and it cut my fuel off on the motorway. unless you KNOW what the hyo system does dont argue with someone who owns one and knows the system inside out

i have not touched my carbs yet ive told you this before and i wont be doing it till i go to aus in 5 months.

and dumb ramblings hu? tell that to burt he didnt need them or a dyno
so just because you know how carbs work doesnt mean someone else knows it difrently

[mossy1200]

[Chaos Rider said](um that diafram does alot more then that. and ive tried to explain it befor. it only lets fuel through when the pistons draw in from the carbs hence it limits fuel. and ive not had a prob with the bowls flooding, i think its a load of bull realy. well if you want to pitch in some money so i can waist ie getting a dyno done that will tell me nothing helpfull then sure. ive been taught how to smell how rich or lean and engine is running and i can also adjust air flow and exhaust to suit and im pritty good at it so i dont real need to dyno it other then to satisfy you lot realy.)

I think you will find everyone that this is just a huge piss-take, lets face it, nobody tunes a motorcycle by "sniffing" the exhaust! For those of us old enough to remember, Warren Caters mechanic could(?) tune wareeen TZ250 by putting his hands up to the mufflers! Then again, he was Japenese, they, after all, are the GURUs for tuning eh!
Bottom line is though, I think this chap is just taking everyone of a ride (pardon the pun) he is not serious, noone surely believes any of this drivvle do they?
Lastly, if it were true, he will have to compete in F3 as his machine contrivenes far too many rules to make it elagible for 250 Prolites!
Please people, don't encourage him! you are just playing HIS game!

We just wait with baited breath to see what comes up next.Chaos the comedian....

[Crasherfromwayback]

it till i go to aus in 5 months.

and dumb ramblings hu? tell that to burt he didnt need them or a dyno
so just because you know how carbs work doesnt mean someone else knows it difrently

You're going to Aus? Thank fuck for that.

Ps: Burt did indeed need carbs. You didn't see him trying to sniff his exhaust system at 150mph though.

[ajturbo]

Example Craig Shirriffs RGV250N claimed dry by Suzuki 139kgs,Actual dry weight when we weighed it for airfreighting too Phillip Island = 151kgs

ya dumb bugger.. YOU were NOT suppose to be sitting on it at the time...

[ducatilover]

ok again if the diafram cuts off the fuel when there is no suction from the head intake does that maen i get more fuel? i know it limits feul becuase i lost suction in the pipe and it cut my fuel off on the motorway. unless you KNOW what the hyo system does dont argue with someone who owns one and knows the system inside out

i have not touched my carbs yet ive told you this before and i wont be doing it till i go to aus in 5 months.

and dumb ramblings hu? tell that to burt he didnt need them or a dyno
so just because you know how carbs work doesnt mean someone else knows it difrently

Chaos, I am a qualified mechanic, I know what the system does.I think you mean the vacuum line to the fuel tap. There is always suction form the head, the fluctuations in vacuum occur faster than a spring loaded rubber diaphragm can, work it out for yourself. Do you think hyosung would fit a part to their bike that makes you randomly run out of fuel? No, no they would not. The reason you run out of fuel is because you hit reserve or your ego soaked it up. If you have changed the exhaust you will have to do the jets to achieve anything, your motor is designed to run reasonably lean so don't push it. Burt was an experienced man, he knew what to do to an extent yet he made many a mistake. You are not burt, I have more knowledge on carburetors than you, so take the given advice. How are you tuning it with your nose? You cannot load test it with your nose, when the ignition is under full advance and your slides/needles are open, that doesn't happen until it is under load, eg riding it or on a dyno. Give up arguing Chaos, people here are giving you advice, people here know a lot more than you do, after all they have been there and done that many a time. I have tuned many vehicles on a dyno and tried tuning them on the road, the best way to tune a vehicle with carburetors is on a dyno. Not with your nose. If you were intelligent you would have known that Burt would have been using his spark plugs as a true reference to his air/fuel ratio, you could try this, if you have your exhaust less restrictive I would say your plugs will be a very light brown or white.
Try getting over yourself and listening to some people who genuinely want to help you, we all want to see you get the best from your bike and are offering advice and correcting you where you are mistaken.

[DELLORTO]

it just keeps getting funnier!!!! hyosung 250 30hp stock!! lol thats such a lie its almost sad!!\

i reaken even my fxr150 would have more off the line and top speed power than you 250 hyosung.......

[koba]

i reaken even my fxr150 would have more off the line and top speed power than you 250 hyosung.......

Haha! Another funny fulla!