Need a little advice

[fastbanshee8]

My mods are in my sig. Finally got around to getting the motor broken in yesterday. Temp around 60, and the elevation is 1550. 50 pilot, clip on needle 4th slot from the blunt end, and 320 main. Sometimes it would clean out and run fine at WOT, and sometimes it wouldn't. Do you think it's too fat on the needle, or it's too fat on the main??? If I was riding it real hard, I would run fine, but if I was taking it easy and just cruising around, it wouldn't clean out in the upper RPM's, until I revved the $hit out of it for a while. I'm not sure if it's loading up in the mid range, or if it is fat on top. It's close, but not quite there yet. Anybody with similar mods, that could lend a little advice? I know that it will run worse, when I go to LS in Oklahoma, because of the sand, if I don't get it closer. Thanks. I don't have anywhere around here to do a plug chop. Not enough room, and I live in town.

Edited April 9, 2006 by fastbanshee8

[Dinner]

Id say your Pilot is too big, its loading up in low RPM's then takes a bit to burn all the extra mixture

[fastbanshee8]

Everyone that I talked to said the 30 pilot should be right, including Jeff @ Fast, but every engine is a little different. I runs fine off idle till it gets into the upper mid range, then once in a while, it will stumble a little bit. I'll open up the air mixture screw a little, and see if that helps clean it up a little.

Edited April 9, 2006 by fastbanshee8

[Dinner]

It says 50 Pilot in the post, thats why i thought it was too big

 

Try adjusting your air screw and seeing if that changes anything, and put in a smaller main , and do plug chops

Edited April 9, 2006 by Dinner

[fastbanshee8]

Oops, I screwed up, it is a 50 pilot. How much smaller should I go on the pilot, because I have 45's, 40's, 35', and 30's all on hand. Sorry about that.

[Wicked98Shee]

it sounds to like you are fat on the needle if its loadin up in the mid just crusin' but when ur runnin it hard it stays cleaned out.

[Dinner]

I dont know too much about jetting, but isnt a 50 pilot pretty big

[rocketboy]

yo u have thsoe shit as 34mm flatslides so i wouldnt be geting jetting advise for a keihin carb those carbs wil l probably work good with a 35 pilot and main wil lbe kinda similar to stock carbs . for those mikuni carbs 50 is quite big ...but on a keihin its about average :cheers:those carbs area major pain they have needle jet orrifices and seats and dump tubes and labias and flabias

Edited April 10, 2006 by rocketboy

[fastbanshee8]

yo u have thsoe shit as 34mm flatslides so i wouldnt  be geting jetting advise for a keihin carb   those carbs wil l probably work good with a 35 pilot and main wil lbe kinda similar to stock carbs . for those mikuni carbs 50 is quite big ...but on a keihin its about  average  :cheers:those carbs area major  pain they have needle jet orrifices and seats and dump tubes and labias and flabias

500166[/snapback]

 

I wasn't asking for jetting advice for a Keihin carb, and I wouldn't run Keihin's if someone gave me a set. It's not the pilot, because I can go out and start it, and it will set there and idle fine, for however long I wish. I backed the main down one size, and it's fine now. When I bought the 34mm Mikuni's, I had about $200 in Mikuni jets, so it would have been kinda stupid to buy Keihin's, and then have to buy all new jets. It runs like a raped ape, now.