Was getting 20mpg... will update you on this next tank

[drkngas]

Switch mechanics...and bring your bike back to stock...everything.

that's what i would do.

No way back to stock.  After owning a '84 700, the '96 just didn't feel right.  Pipes and carbs were a necessity.

[DavidJRoberts]

Getting the bike back tomorrow with stock pipes and the jets set to run right with them (with the kit still in there and K&n). Let's see how it runs and hopefully the mpg is above or at least at 30.

He said after he got the bike back together it felt sluggish, touched the back cylinders which were hot, then he touched the front two and they were cold. Pulled the new plugs I just put in a couple weeks ago and they were bad (he tested them). The back ones were intermittent, too. This could run into a whole new topic, he didn't know why they would have gone bad so quick. I put E3 plugs in, he'll put NGKs back in. Any idea why they would go bad so quick? Did I over tighten them? I went maybe a 1/4 turn past hand tight.

Hopefully that's not a sign of something else that costs money!

[Slydynbye]

Those Plugs probably fouled because you used too much Seafoam. Half a can per tank is enough to foul your plugs, more is not better in this instance. Next time follow the instructions on the can.

[DavidJRoberts]

Those Plugs probably fouled because you used too much Seafoam. Half a can per tank is enough to foul your plugs, more is not better in this instance. Next time follow the instructions on the can.

hehe, thanks. that'll teach me.

[TLRam1]

I know nothing of the E3 but most plugs like those IMO are mostly gimmick marketing from various reports I have read or testing. If it does help it would probably be of very little on the Magna, get a good brand name plug such as the NGK and you should not have any problems.

On a side note the Seafoam should not affect your plugs like this, I have dumped a bunch in like you, easy fixes never work for me, I always have to dive in and handle it first hand.

If the 104 Mains are similar to the 105's we use and he put those in along with proper needle adjustment you should have no problem with a much better gas mileage. 

[Chad in Michigan]

if iremember right, the dynojet sizes are not the same as the kehin (stock) jets. the 104 equates to like the stock 102 mains, or close to it. somewhere there is a jet list comparison between all the makers of jets, i'll see if i can dig it up

[BA]

I fount this on Triumphrat forum...

Width------Keihin # -- DynoJet # -- Mikuni #
0,0350---- 92,5--------- 92----------- 86,3
0,0360---- 95----------- 94----------- 88,1
0,0370---- 97,5--------- 96----------- 90,0
0,0380---- 100---------- 98----------- 91,9
0,0390---- 102,5------- 100---------- 93,8
0,0400---- 105--------- 102---------- 95,6
0,0410---- 107,5------- 104---------- 97,5
0,0420---- 110--------- 106---------- 99,4
0,0430---- 112,5------- 108--------- 101,3
0,0440---- 115--------- 110--------- 103,1
0,0450---- 117,5------- 112--------- 105,0
0,0460---- 120--------- 114--------- 106,9
0,0470---- 122,5------- 116--------- 108,8
0,0480---- 125--------- 118--------- 110,6
0,0490---- 127,5------- 120--------- 112,5
0,0500---- 130--------- 122--------- 114,4
0,0510---- 132,5------- 124--------- 116,3
0,0520---- 135--------- 126--------- 118,1
0,0530---- 137,5------- 128--------- 120,0
0,0540---- 140--------- 130--------- 121,9
0,0550---- 142,5------- 132--------- 123,8
0,0560---- 145--------- 134--------- 125,6
0,0570---- 147,5------- 136--------- 127,5
0,0580---- 150--------- 138--------- 129,4
0,0590---- 152,5------- 140--------- 131,3
0,0600---- 155--------- 142--------- 133,1
0,0610---- 157,5------- 144--------- 135,0
0,0620---- 160--------- 146--------- 136,9
0,0630---- 162,5------- 148--------- 138,8
0,0640---- 165--------- 150--------- 140,6
0,0650---- 167,5------- 152--------- 142,5
0,0660---- 170--------- 154--------- 144,4
0,0670---- 172,5------- 156--------- 146,3
0,0680---- 175--------- 158--------- 148,1
0,0690---- 177,5------- 160--------- 150,0
0,0700---- 180--------- 162--------- 151,9
0,0710---- 182,5------- 164--------- 153,8
0,0720---- 185--------- 166--------- 155,6
0,0730---- 187,5------- 168--------- 157,5
0,0740---- 190--------- 170--------- 159,4
0,0750---- 192,5------- 172--------- 161,3
0,0760---- 195--------- 174--------- 163,1
0,0770---- 197,5------- 176--------- 165,0
0,0780---- 200--------- 178--------- 166,9
0,0790---- 202,5------- 180--------- 168,8
0,0800---- 205--------- 182--------- 170,6
0,0810---- 207,5------- 184--------- 172,5
0,0820---- 210--------- 186--------- 174,4
0,0830---- 212,5------- 188--------- 176,3
0,0840---- 215--------- 190--------- 178,1
0,0850---- 217,5------- 192--------- 180,0
0,0860---- 220--------- 194--------- 181,9
0,0870---- 222,5------- 196--------- 183,7
0,0880---- 225--------- 198--------- 185,6
0,0890---- 227,5------- 200--------- 187,5

[hootmon]

Terry, in all your spare time, Can you get this posted up with all the other info?? It seems like a good reference..

I found this on Triumphrat forum...

Width------Keihin # -- DynoJet # -- Mikuni #
0,0350---- 92,5--------- 92----------- 86,3
0,0360---- 95----------- 94----------- 88,1
0,0370---- 97,5--------- 96----------- 90,0
0,0380---- 100---------- 98----------- 91,9
0,0390---- 102,5------- 100---------- 93,8

[BA]

I also picked up a set of aftermarket jets that were stamped 110 (don't know exacty what brand they were), but when I sniffed the exhaust on the dyno at school, the A/F ratio was close to the Keihin 105's I had tested earlier.

[TLRam1]

Terry, in all your spare time, Can you get this posted up with all the other info?? It seems like a good reference..

I found this on Triumphrat forum...

Width------Keihin # -- DynoJet # -- Mikuni #
0,0350---- 92,5--------- 92----------- 86,3
0,0360---- 95----------- 94----------- 88,1
0,0370---- 97,5--------- 96----------- 90,0
0,0380---- 100---------- 98----------- 91,9
0,0390---- 102,5------- 100---------- 93,8

Hoot,

In YOUR spare time you come over to Texas and visit is when I will get it posted!  Hoot how do we know this is correct? Is there a place you would like me to post this, want me to post your resume also? Might I get you your favorite beverage?

Great find BA.

PS. For you new guys, I'm just harassing Hoot (I can be internet tough guy with the 6'7" specimen in Florida, he can't get to me  ), if anyone needs something added to the FAQ just let me know.

[TLRam1]

Done, Jet Cross Reference posted here.

http://www.magnaownersoftexas.com/forums/index.php?topic=1917.msg14638#msg14638

[Lurkin]

Hey Hoot, Terry just called you a "specimen".  Are you going to let him get away with that!

[TLRam1]

Hey Hoot, Terry just called you a "specimen".  Are you going to let him get away with that!

Ut oh

[DavidJRoberts]

The bike is back and running smooth as guinness. No hesitation or lack of power anywhere in the rpm's. I didn't remember how quiet these bikes are with stock pipes on. No more people staring at the bike at lights and around town, I like that. I'll report on mpg and we'll close this convo out.

Thanks again for all the insight. The final setup was that each jet went one size larger than stock but he moved the clip one notch up since I still have the jet kit in there. I still have the K&N in there so I guess that's why the jets are slightly bigger. He said the needle for the main jet is shorter too. Can't remember if he said that was to get fuel in there quicker for faster response or more fuel. He dropped it off last night after a long business day so I don't remember everything. Anyway, it's extremely responsive and moves along beautifully.

[Charles S Otwell]

Great, hope the mpg turns out as well ..