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Yeah i need something to tell me when its rich or lean(besides pulling my plugs) i might pull my carbs again..... and check to see if they got gummed up or something.... since im outa ideas at this point... ive even gone to a stock setup, 150 mains, stock needle, vboost closed i guess thats it...

Hey Sean, tried shimming the needle more(1mm washer) but didnt seem to help, actually if i go WOT with vboost open and im under 3k itll studdar thru the 3k-4k range and continue to almost 7k.... im going to pull the shims and see if my studdaring under 4k goes away. Thanks Jason

hey thanks for your 2 cents. Im up to try anything and im going to try and find someone with an air/fuel gauge to try on my bike and see what im at. i also notice when im at WOT and i let off the throttle just a bit it seems to stop stumbling and smooth out, until i twist it past 1/4 throttle...

what if i pulled out the stock 170 PAJ2s and put in 165s or 160s... would that richen things up?? maybe have the same effect as running larger mains???? just a crazy thought. jason

Well it seems like im back to square one again, anything over 4k and 1/4 throttle it sounds really poppy and kinda high pitched. then around 6.5-7k it smooths out and starts pulling hard. Im still not sure if my 4k-7k is running rich or lean... my plugs are a very light tan. I now this might...

Okay so after redrilling my slides to have the correct size hole, i noticed i still have the stumble in the 4k-6k range, altho its not a bad stumble its still not right. Also checked my plugs and the y are finally getting a tan color to them compared to being white before i started playing with...

All very good advice, but after cleaning the mixture screws ouut my "miss" went away, all the other tuning issues are issues ive had afor a while and ive tried allllll kinds of mains and needle shimming combos before, but after my trip from Texas to Colorado my tuning issues sorta changed...

Hey Sean, yeah big change on the mains.... but it doesnt seem to have an issue in teh top end, but even after shimming the needles it still doent have a smooth pull from 4k-6k, but pulls fine after 6k. I need to do some more runs and tests tomarrow, but my plugs are still looking a bit white so...

Hey man, yeah it was a good ride, all 4000+ miles of it!!! Just wanna get it tuned correctly now:bang head: id be all over the dyno idea if i wasnt pinching pennies right now.. sorta lost my job:damn angry: Jason

Yeah thats tomarrows project, and yes on the slides , ive inspected them carefully and they are in good shape. I need to pull my plugs again too and see what color they are since the 165main swap. Jason

anybody??? I know ive been picking everyones brain on this bike since day one and i just cant seem to get it right..... no matter what i change or do it never runs right, it seems like i fix one thing and another thing pops up.... Jason

okay so i put my 165 mains back in and syncd the carbs, went for a run and i noticed it still stumbles in the 4k-6k range and then cleans up and starts pulling... altho it does pull harder than before, it still doesnt seem to pull like it did before i worked on the carbs. Im wondering if maybe i...

Okay got the bike running on all 4 cylinders now, did the shotgun on all the carbs and also found that all my rubber o-rings in the mixture screws were all mutilated and in pieces!! cleaned them out and bam she runs again!! except for the lean issue i still have, so after the bike cools down im...

This might be a stupid question... but did you hook all 4 carb sync hoses to the master carb first? This will make it so all 4 tubes will be drawing from the master carb. Then you set the screws on the carb sync tool to get all the fluid levels reading the same level......... just a thought...

okay well i think yall are onto something, i can turn my mixture screws on both front carbs all the way in and idle doesnt change a bit, so whats that mean?? do the pea shooter or shotgun?? i dont know why both front carbs would just stop working like that:bang head: Jason

Ill try to get a look at the bike and maybe some pics, other than the motor, is there anything else that the vmax can use from the venture?? like the rear drive pumpkin, has lower gears right? what about the front forks? are they better or the same? Thanks' jason

well before i jet up i just encountered another issue.... after church tonight i drove home and it ran like absolute GARBAGE!!! missing popping, dieing at idle. So i get home and pull the front two sparkplugs while the bike is running... and it doesnt change a thing!!! turned bike off and pulled...

Well when i left for my trip they were all at 16mm(wet level) I wouldnt think they could change with just driving... but ill check them again tomarrow when i can. If they are still good, what else should i check?? thanks jason

Okay well im finally back after my month long vacation........ and im ready to get this bike running right!!! So lets recap... my bike ran good from idle to 4k then sputtered and ran like crap till 6.5-7k so i added another spring to my slides to slow them down from opening to quick and i was...

Hmmm good to know, ill try to get a look at the bike so i can know forsure, maybe it'll have some 1300 badging?? or say something on the bike referring to it as having the 1300 motor? jason