Pulled my plug last night and looked... yep, it's way too white. Insulator is super white and there is even a tiny amount of whitish residue on the ground electrode.

AND, I've gotten a little 'pop' just after shutdown ever since it was new. Must be unburned fuel igniting in the pipe after the ignition is shut off, but the engine is still rotating and pulling in fuel. I'm not worried about that.

 

AK, thanks! Is the mixture screw on the left side of carb. Should I turn it all the way in then back it out 2 1/8??

 

 

aksafari

spring is here, everyone is spending more time outside hopefully riding

 

ever been to price county,about 125 miles or more to ride on,some really nice trails. Clark county is another place,I hear that's got some nice places ro ride.

 

REPORT!

Installed 134 Jet and turned back the idle circuit screw to 1 5/8" turns out. THING RUNS LIKE A RAPED APE! Just by my 'seat of the pants' analysis, I'd say a 2-3 HP gain. SIGNIFICANT. Better throttle response, better accell, better top speed (slightly). Top speed is limited by revs I think. It's pretty rapped out at 57mph. BUT, it pulls the front tires up a lot easier than before, and on gravel/dirt, I actually have to reserve a little throttle, otherwise it just spins the tires through ALL GEARS. HELL YEAH!

I'd recommend it any day of the week.

My conditions are 1000' altitude, 70 degrees, 30% humidity. (approx)

AGAIN, I'd say DO IT!! For $3, it's DEFINITELY the cheapest horsepower you're gonna get.

Sound too good to be true? Why don't you spend 3 bucks and a half hour and find out for yourself.

Oh yeah, I also drilled 5, 3/4" holes in the smooth air tube inlet that is INSIDE the airbox, just before the water deflector where the air dumps into the box. That, in my opinion, increased airflow, and probably helped.

I'll take a pic of my airbox mod later on today.

 

I just purchased an '04 Twin Peaks 700. I have had it less than 24 hours. I have only riden it from the dealers, garage to the trailer I hauled it home on. It was kind of an impulse buy based up on Suzuki finance incentives. I went in to buy an oil filter for my Honda Rancher and walked out with a Twin Peaks (and an oil filter). I woudl like to talk to some Twin Peaks owners to find out what they like/dislike about this machine. What (if any) adjustments and modifications they would suggest. I am a trail rider and I mostly use it to hunt and fish from. Any assistance would be greatly apprecaited. Thanks in advance.


Bob

 

Hey MuddyEiger, did you decide to stick with the FMF? Did you find any evidence at all about what kind of performance it makes?

 

Another piece of info, besides the Z400 using a 39.5mm carb, is the fact that the Raptor uses TWO 34mm carbs!!

That's amazing. No wonder they can pump that engine up so much. There's a lot of potential there.

I'm convinced that my Eiger would be really happy with a basic exhaust mod, (larger pipe to muffler) and a 36mm carb. Now if I could just find one for sale!

 

you can probley get a 36mm carb from a vinny to work, check ebay, and you could just try to order one directly from kehnin possibley