Yama49601
Member
I just wondered what you thought about these. The center and the one on the right look to me a little lean. The last 100 miles that were put on these were with the carbs set a little richer than I had them before. And the temperature out that night was 25°-30°, so I don't think I'd want to be riding this thing in 0° weather with the carbs set like this or anything. I plan on raising the needles another half on those two cylinders (to position 4, they are at 3.5 right now). I'm trying to get them to be more even with that pto plug. I was wondering about something though, could I change the main nozzle (or needle jet or whatever it's called) in that pto carb to the same one that's in the other 2 so that cylinder isn't so much richer than the other 2? Or shouldn't I do that? If I did do that would I be able to have the needles all set the same instead of having them staggered like they are? Or doesn't it really matter if the needles are staggered?
The plug in the middle and on the right look like they are dead nuts right on, meaning if it gets cooler by a few degrees, you have problems LOL
The plug on the left look nice and tan. Looks like you have a small amount of cushion there.
The plug on the left look nice and tan. Looks like you have a small amount of cushion there.
Yama49601
Member
Yeah the 2 make me nervous if it was colder out. Here's another picture without the flash.
daman
New member
can see better with the flash off, to me looks like center and right are good
with a little cushion to boot, left look's on the rich side..
with a little cushion to boot, left look's on the rich side..
Yama49601
Member
That left (pto) cylinder is a pig. That needle is set at stock but I guess I might have to lower that one and raise the other two. If I do that the pto needle will be at 2.5 and the other two will be at 4.
800
New member
change the noxxle on the pto , it has a Q8 the other 2 have a Q4, what pipes do you have,
are those the same plugs?? They look alot richer now..
But I would jet the other 2 just like you have the cylinder for the plug on the left jetted. Too many burn downs this year!!!
BTW?? You coming up to Muni on the 9-13? I am from Saint Igance and will be leaving for Michigan tomorrow. Ill be on the TY ride.
But I would jet the other 2 just like you have the cylinder for the plug on the left jetted. Too many burn downs this year!!!
BTW?? You coming up to Muni on the 9-13? I am from Saint Igance and will be leaving for Michigan tomorrow. Ill be on the TY ride.
Yama49601
Member
Yes they are the same plugs. The flash skews the color quite a bit. The jets are the same on all cylinders and that richer plug has the needle set to stock (3). The leaner looking ones have the needles at 3.5 right now. That pto cylinder is just so much richer it isn't funny and that's why I wondered about changing that nozzle so that they're more even without having to have the needles so staggered, but I had never heard of anyone doing that. I think I'm gonna buy a new nozzle so they're all the same. Or I thought about maybe swapping the pto and center nozzles since the center runs the hottest.
The pipes are Bender.
I'd like to go to Muni but I highly doubt I'll be there this year. Hopefully next year.
The pipes are Bender.
I'd like to go to Muni but I highly doubt I'll be there this year. Hopefully next year.
I never heard of staggering the needle positions. can you put them all at 3?
You do that, probably never have to do a plug check again. Unlees its -40 LOL
Most burn downs occur in the mid-range (riding on the needles) as thats where 90% of you trail riding is.
You do that, probably never have to do a plug check again. Unlees its -40 LOL
Most burn downs occur in the mid-range (riding on the needles) as thats where 90% of you trail riding is.
Yama49601
Member
When I had those two leaner looking cylinders set with the needles at 3 I was getting a lean bog or something from 4000-5000 rpm's. As soon as I changed those two needles to 3.5 it was almost gone. But as the night/ride went on it came back but not as bad. That's why I was gonna go a half more with those two. I can't wait to get this figured out because I'm getting real tired of having to mess with it.
Are you able to use the stock needles with the bender pipes or did they come with new ones?
Maybe move them all up to 2 or 2.5??
I know when I drag race I have the clip all the way at the bottom cause I gots to SLAM that throttle open at the light and need all the fuel I can get..
Maybe move them all up to 2 or 2.5??
I know when I drag race I have the clip all the way at the bottom cause I gots to SLAM that throttle open at the light and need all the fuel I can get..
daman
New member
you got your carb heaters off??
Yama49601
Member
The needles are stock. Most of the riding I did that night when I took these plugs out the heaters were on, there was tons of fine powder in the air and I didn't want to have any problems. But I usually leave them off.
daman
New member
i'd be tuning with 'em off..
Yama49601
Member
I've only turned them on twice since I've owned this thing. Doesn't having them on richen the motor slightly? Either way that pto cylinder is a lot richer than the other two and I'm just trying to figure out what to do to get them more even. I've never heard of anyone having their needles that staggered with these pipes, I've read to raise them all a half on here, Bender says to raise the center a full (to 4) and to leave the other 2 stock, then I've read to have the mag and center 1/2 richer than the pto since those run the hottest with these pipes. 
Hey Yam,
Are you running 150 mains all the way across as Bender recommends? I am looking to bring my needles up a 1/2 to 1 notch after riding this weekend, the tuning tips from bender seems a little to lean for my blood and pocket book in the mid range.
Are you running 150 mains all the way across as Bender recommends? I am looking to bring my needles up a 1/2 to 1 notch after riding this weekend, the tuning tips from bender seems a little to lean for my blood and pocket book in the mid range.
Yama49601
Member
Yeah I have 150 mains with 50 pilots. I had 52.5's in it but it would foul the pto plug instantly when I started it with the 52'5's in there. Bender told me to just put a 50 pilot in that cylinder and leave the 52.5's in the other 2 (which I didn't like the sounds of), mrviper700 told me to just put 50's in all 3 and that's what I did. When I ordered the pipes they tried selling me 55's with them... 
All I really need to do now is get that damn pto cylinder even with the other 2...
17 responses to it...wow!! The 2(center,right) look fine, you see the silver around the outside edge of the core of the electrode, thats good, its still darker in the center so that means you have a cushion yet still for a maybe 10-15 degree temp drop , its when its all silver across the elctrode that your spot on and in trouble for a temp drop. The pto one is way,way,way rich. You also look like you have more then plenty of oil in the engine.
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Yama49601
Member
Hey I'm glad you finally replied.
What do you recommend with that pto cylinder?
Should I change that nozzle? Or keep going leaner with the needle?
I'd like to just change the nozzle in that if it's not gonna hurt anything? I also plan on checking the oil cable, I was gonna set it to 21mm at the most. I wasn't sure how far would be safe to go with that using the Klotz. I've read about turning it down if using synthetic but how much is safe?