ok when i bought my quad in august it had all the mods it has now (look in my sig for the mods) anyways and theres a 360 main jet on it does that sound like the right size and by the way im runnin 32:1 mixture
jet size
- Thread starter 89blaster89
- Start date
that sounds Big, whats your elevation? i would start at 300, do a plug chop and go from there.
or type jetting into the search and see what others are running with similar mods
or type jetting into the search and see what others are running with similar mods
fmfs usually run about a 270-280, and your supposed to usually 1 up the main for removing the lid, plug chop to see if shes acurate, sounds a bit rich but what do i know...
#360 does sound big, #290 or #300 could be better.
How does it perform, does it bog?
Does it blubber?
Did the plug chop show a good colour?
Have you done a leak down test?
Did the jet kit come with a needle, if so did you use it and where is the clip set.?
Have you set the float level?
How does it perform, does it bog?
Does it blubber?
Did the plug chop show a good colour?
Have you done a leak down test?
Did the jet kit come with a needle, if so did you use it and where is the clip set.?
Have you set the float level?
it performs really good, it never bogs i havent plug chopped yet, and yes i did use the needle. and by the way im not totally sure if it is a 360 im just asuming because the moose jet kit came with a 200, 210, 220, 340, 350, 360, fuel needle, e-clip and adjusting washer and i was reading the little pamphlet that was in it and it says "remove stock main jet and replace with moose main jet provided. when using stock exhaust use the dxp 350. when using an aftermarket exhaust use the dxp360. be sure that the jet you are changing is the main jet." oh and the needle is on groove 3 i believe.
Trouble is with jet kits, they never give you jets you can use, always below, and above ones needed.
I would be buying a few jets #270 to #300, start with the #300 and do a plug chop, jet from there.
Toss out the needle and put the stock one back in with the clip in the 3rd, middle..
Unless you have an air leak this setting should suit your mods.
If it seems to be running well with a #360, I would consider doing a leak down test, as the rich condition could be masking an air leak.
I would be buying a few jets #270 to #300, start with the #300 and do a plug chop, jet from there.
Toss out the needle and put the stock one back in with the clip in the 3rd, middle..
Unless you have an air leak this setting should suit your mods.
If it seems to be running well with a #360, I would consider doing a leak down test, as the rich condition could be masking an air leak.
yea would a compression test work for this also? and also isint a 360 what it needs if thats what the company recomended? i dont even know if it is a 360 for sure...im sure you remember my knocking noise problem right? im just going to put the 32:1 ratio back in the blaster and put a fresh plug in then ride it then do a plug chop and see where im at...
If your motor is sound with no air leaks, there is no way that your mods need anymore than a #300 !
I would be doing a leak down test as soon as possible, before you ride it again.
PM slickerthan you, and talk tester.
I would be doing a leak down test as soon as possible, before you ride it again.
PM slickerthan you, and talk tester.
ok im going to do a plug chop and see what the color is if its like paper bag color should i leave it and also im gonna do a compression test its good if the compression is over 100 right? and also is there a forsure way to tell what size my jet is?
A leak down test is where you pressurise the crankcase via the carb boot to 7psi which should hold for 10 mins.
I really do recommend that you do a leak down test before you ride it again, if that #360 jet is hiding an air leak you are tempting providence.
The for sure way to see what is the jet size, is to read the numbers on it.
I really do recommend that you do a leak down test before you ride it again, if that #360 jet is hiding an air leak you are tempting providence.
The for sure way to see what is the jet size, is to read the numbers on it.
Firstly, and I say it for the umpteenth time..
Do a leak down test!
If it runs well on a #360 with your mods, the jet could be hiding an air leak.
Then when it passes, do a plug chop to confirm the jetting.
The needle may run well with the correct clip setting.
okayy ill do a leak down test and the piston needs to be at the very bottom when i do it right? and if i understood you right if theres no air leak just throw in a 290 and and plug chop to make sure its all good
I agree 100% with Blaaster, he knows what he's talkin about and he's just tryin to save you some money and your top end from burnin up. If you check other members sigs even with air box lid removed their usually right around 300 for the main. Like he said if your running good with a 360 main its most likely due to an airleak which is why your engine needs so much more fuel with that 360 to make up for all that extra air your sucking in. Piston should be bottom dead center when performing the leakdown test and the size/number of your main jets will be imprinted on the lower side of your jets. You can probly use the search function and look up leakdown test for complete instructions on how to properly perform a 2 stroke leakdown test ( different thematic compression test. ) Good luck man I hope if and when you find your leak it will be a cheap and easy fix.
thanks man and if i did find a leak depending on where its at how would i fix it just new rubber gaskets or what?
Lets get the test done first, find out where the problem may be, and then we can start talking about crossing bridges.
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