Something's taken a shit and it sounds expensive

[Akzle]

You could also check your air filter.
If its realy gumed up it may be struggling for air at revs. (just a thought).

it's now struggling even <5k.
looked at the air filter, but seems a bitch to get out. might take up my wrecking bar.
got plug wrench today (7$ at supercheap - wtf china?!), will get into it in a few bourbons.

I'd be checking for rust in the tank blocking the fuel tap/filter , another cause can be the idle adjusters on the CV carbs.

air pilots are set to fuctory (/pre-fuct position)
it holds idle.
i got some fuel from caltex in auckland (is when this shit started) thought about breaking apart the fuel tap but really really don't want to again (new one 120$), odd, i could blow air through on both res and ON, but fuel wont come down when it's on ON. IDGAF about prime.

I'm assuming you cleaned the carbs and there are no air leaks?
Katman's suggestion is good (as expected, he fondles bike apparently)
Is the carb bowl vent clear and routed correctly?
Are the intake rubbers seated correctly
Is the airbox sealed well?
What kind of chips do you want bro?

1- yes i cleaned the carbs (ish) - blew out all passages, air leaks, not so sure. vents, huh? blew air through everything. was fairly rough n ready job as i didn't really expect there to be anything wrong with them (and i was doing it on the back of my ute)
2-boots airbox-carbs-block all look good and i screwed the fuck out of the hose clamps on em, spose i should try squirting some CRC around eh.
3- airbox is sealed as well as it's ever been
4- i like the old tomato munchos, i think they still sell them under a different name. and some kind of awesome bike, like a GNSX750 =)

One of the pissed off natives has jammed a spud up your pipe.

i'm the most native cunt 'round here. and i'm pretty fucken white. (plus they's trumpets - it'd have to be a fair small potato, and i'd'a blasted it out by now.)


// another think: exhaust gaskets?

[ducatilover]

1- yes i cleaned the carbs (ish) - blew out all passages, air leaks, not so sure. vents, huh? blew air through everything. was fairly rough n ready job as i didn't really expect there to be anything wrong with them (and i was doing it on the back of my ute)
2-boots airbox-carbs-block all look good and i screwed the fuck out of the hose clamps on em, spose i should try squirting some CRC around eh.
3- airbox is sealed as well as it's ever been
4- i like the old tomato munchos, i think they still sell them under a different name. and some kind of awesome bike, like a GNSX750 =)

Hit it with a hammer mate
lol keep the fuck away from my GN, it's far cooler than you GSXteapot
I'll give you two bags o' crisps?

[Coolz]

Hunted around this arvo and found my 3/4 plug socket but I see you've got it sorted. There is a second hand tool shop in town opposite Placemakers. They buy and sell tools so you can often barter, swap tools.

I've got a compression gauge if you need one.

[Akzle]

Hunted around this arvo and found my 3/4 plug socket but I see you've got it sorted. There is a second hand tool shop in town opposite Placemakers. They buy and sell tools so you can often barter, swap tools.

I've got a compression gauge if you need one.

got a compression gauge. don't know if the stick is long enough to poke my holes (i have a bad feeling it isn't), but we'll find out. elsewise have a bin full of old airline fittings so i can probably sort something out. elsewise i'll contact you.
ta, tho.

@'cati-man - you're saying your mighty GN is only worth one bag of chips?! this is looking like chips + bike + cash my way.... (i'll throw in a hammer, too.)

[ducatilover]

got a compression gauge. don't know if the stick is long enough to poke my holes (i have a bad feeling it isn't), but we'll find out. elsewise have a bin full of old airline fittings so i can probably sort something out. elsewise i'll contact you.
ta, tho.

@'cati-man - you're saying your mighty GN is only worth one bag of chips?! this is looking like chips + bike + cash my way.... (i'll throw in a hammer, too.)

I'll throw a fuckin hammer...

You can make yer own comp tester adapter by bashing the porcelain out the plug and fitting an airline fitting (lots of fitting, epilepsy?)
Doug's hori tip for the day!

[fatboyzed]

Just A Guess
Maybe a delaminated fuel line IE the inner core has parted company from the outer core when it gets warm and you open the throttle it sucks the inner flat??
Had this problem with a power steer hose once.

[scumdog]

Jeeze Axzle, for a know-all cunt yer really draggin' the chain when it comes to getting your own problems sorted!!

[awayatc]

Must be one of those suzuki Karma's maybe ..?

[FJRider]

Just A Guess
Maybe a delaminated fuel line IE the inner core has parted company from the outer core when it gets warm and you open the throttle it sucks the inner flat??
Had this problem with a power steer hose once.

He said the fuel tap is fucked. Only lets fuel flow on prime. May be just blocked ... either in the tap or the filter in the tank blocked.
As I understand ... the only sucking on that bikes fuel system .... is on the vacuum line .... as fuel is gravity fed.
As he didn't open up the airbox "because it looks like a bitch to get into" .. I'm guessing nobody else has for a while either. Airbox "sealed as good as its ever been" means it hasn't been opened much ... if at all. Even "sealed" ... it should let air in. No air getting in and the engine won't run. Some air getting in ... the engine will run .. but not rev. (which he has already mentioned.)
A regular run on a gravel road would account for a dirty air filter. And in summer would get dirty fast.

Filters and plugs are usually the first step for NOOB bikers ... unless you don't have the tools (or inclination) THEN ... you do the tricky stuff you DO have the tools for. (and then wonder why you didn't fix the problem)

[Captain_Salty]

Re only getting fuel on reserve, are you sure you have On and Reserve lines connected right on the fuel tap? I had the same problem after mixing them up Don't know if that would have any affect on the power though

[FJRider]

Re only getting fuel on reserve, are you sure you have On and Reserve lines connected right on the fuel tap? I had the same problem after mixing them up Don't know if that would have any affect on the power though

I had similar issues ... but the vacuum line was in the wrong place. Fuel/vacuum lines are usually different sizes.

[Akzle]

I'll throw a fuckin hammer...

You can make yer own comp tester adapter by bashing the porcelain out the plug and fitting an airline fitting (lots of fitting, epilepsy?)
Doug's hori tip for the day!

yesyes. (i did try it once for my little car (now dead) but didn't have the right size punch at the time, and not keen on fucking my twisties by trying to drill porcelain) the comp tester i have i a rubber tip push n hold jobby.

Just A Guess
Maybe a delaminated fuel line IE the inner core has parted company from the outer core when it gets warm and you open the throttle it sucks the inner flat??
Had this problem with a power steer hose once.

cheers for the input. i don't THINK so, but will check.

Re only getting fuel on reserve, are you sure you have On and Reserve lines connected right on the fuel tap? I had the same problem after mixing them up Don't know if that would have any affect on the power though

there is only one pipe for ON/res, the other pipe is the prime which goes to #3 in front of the carb. i don't know what fucked my fuel tap. i'm blaming caltex. for now: fuel is getting through, which is the main thing


//updatey: so pulled the plugs - they don't look too bad (will post pics later for plug wizard to tell me i'm a fucking idiot) gaps looked big, but i didn't measure. dry brown bit of black type fouling.
they will be replaced next week anyway.
wondering, though, if i should run a hotter plug...

bad feeling the head's coming off. who's good for gaskets?

[ducatilover]

I'd hazard a guess and say your rubber push in jobbie isn't long enough...

Err, the tester, that is.

[Akzle]

weeeeeeeeeel. we have problems.
1) compression gauge fits cyls 1&4, 2&3 are too well hidden and i've been rained off for now. will get a longer probe and confirm but round one looks like this:
#4: ~130lbs
#1: ~110lbs
#2,3: not enough, by the thumb of it.

didn't get to throw oil down 1 either, so can't tell whether head or rings. probably both.

SME bike my best bet?

2)plugs:
asides from being filthy:

-edit- gaps all ~.75, which seems right enough...

[Katman]

If you've taken the compression readings on a cold motor you can't really read much into those figures.