Triumphrat

firie9 · 12-23-2006, 01:27 AM

I'm a bit concerned about whether I am running too lean and if so what damage could be done over what period time.

I did all the standard mods ie removed the top snorkel, uni filter bottom drilled out, as well as the bottom of the air box to suit and I already have long Tors. So liking the idea of the tbs needles I put these and 126 mains in which was suggested by Pat's jetting calculator as the most appropriate. Well I also put in iridium plugs and after looking at them, they look really pale which really surprises me because according to everything I have read, I might be running way too lean. Now I have also read that looking plugs is more of an art form but could Pat's calculator be that far off that I am now doing damage to my engine. I don't think so just because of all the different types of data that has been matched to come to these conclusions. Anyway, can someome just put my mind at ease first before I try 130 jets which I'm still waiting to be delivered.

dazco · 12-23-2006, 12:54 PM

I'm sure you'll be fine, but the 130's maybe more appropriate. Hard to say because while your intake is w/o a doubt a match for 130's, the tors are not as unrestricted as my pipes. I'm just not sure how that would affect things. But also note that the plugs are always going to be rather pale unless you're considerably too rich. I've gone from lean to TOO rich jetting in experimenting to find the right setup. And during all those different jets i noted that the plugs never change a lot. The center porcelin looks snow white when too lean, and when right looks just slightly tan. Not a whole lot of difference. So if yours are a little off-white you're probably not way too lean. From what i understand, with today's unleaded reading plugs isn't the same as it was with leaded gas. I think it's more of a general indicator that can tell you only which direction you are in but not by how much. In other words, they'll tell you when you're WAY too rich or WAY too lean, but the inbetween is vague.

rwright · 12-23-2006, 01:49 PM

Quote:

they look really pale

Check out this site.
Plug Diagnosis
How do they compare with the ones shown? Can you post a picture? Do you get any popping on deceleration? What rpms do you ride at? Also, from what I have read about Iridium plugs they are going to burn more efficiently which could mean less carbon deposit on the plugs and be misinterpretd as a lean condition.

firie9 · 12-23-2006, 06:45 PM

thanks for those comments fellas, I was starting to think just a little bit that if the plugs were too lean then was I doing damage. Of course that would have to concern anyone I reckon but to me, it didn't add up correctly as I had done as much as I could to follow all the advice out there which I believe had been tested fairly thoroughly through trial and error. Anyway, here are the plugs but the photo isn't the best. What I can say is that they aren't brilliant white and that there is still carbon on the electrodes. Anyway, as soon as I get my package from Brent, I'll be putting in the 13o's and seeing how I go from there. Also in the same package I will be getting a carb synchroniser as by the look of the plugs, one has more carbon on it than the other which may indicate my speedie needs it.

12-23-2006, 11:35 PM

Hi Firie9, i have the same setup on my speedy i have gone back to the original jetting.I am getting 19-20 kms/litre and a better responce on the throttle.Whats the color of your tank?is it tornadeo red.Looks good

rwright · 12-24-2006, 12:53 AM

Quote:

I was starting to think just a little bit that if the plugs were too lean

They look okay to me. Carb sync and those 130s ought to be perfect. I had pretty much the same set up as yours for awhile only I had the K&N filter drilled out and 132s.

firie9 · 12-24-2006, 07:41 AM

burny865, thanks for your comment buddy. My next move is 130 size jets cos I would like to see just a bit more colour on the electrodes. hopefully they will be perfect then but only time will tell. Also at the moment, my latest calculation for fuel consumption was spot on 20 kilometres a litre or 5 litres per 100 k's. Maybe that indicates on spot on the money???
thanks for the compliments on my tornado red speedie.

rwright, yeah I reckon you are right with the 130's, I hope so anyway, but you say you used to have the same mods, does that mean you changed to something a bit more elaborate such as freaks or something?

77T140V · 12-24-2006, 09:58 AM

I ran with a setup very similar to yours for the first 7k miles. Only differences were: A K&N drop-in vice the Uni and I have two shims on each needle. I thought the plugs looked very good with 132 mains at that time.

rwright · 12-24-2006, 01:26 PM

Quote:

does that mean you changed to something a bit more elaborate such as freaks or something?

77T140V and I have been down the same road looks like. I now have no airbox, dual K&Ns, TBS needles with 2 shims, 155 mains and drilled slides.

Pictures of My Speedy.

[ This message was edited by: rwright on 2006-12-24 11:27 ]

firie9 · 12-24-2006, 09:03 PM

gidday 77T140V and rwright, great info fellas. I have had my bike now for 3 months and think I might need rehab or at least therapy (or so my missus believes) for my addiction. Whatever my health has never been better. Anyways, I am getting the impression I am going through a natural progression as you both understand. Thanks for putting my mind at ease on the plugs issue etc. I believe going to dual K&Ns may only be a matter of time but I need to research more on the subject. My only issue is my wanting to keep the cheese graters and how do I use the vacant space to store tools etc. So if anyone can give me guidance I would really appreciate it. rwrigh, your bike looks great and the k&Ns do look impressive. My current choice to use the graters may change to look like yours but time will tell. Anyway, what I reckon is brilliant is how they obviously let the carbs breath so much better whereby you are using 2 shims and 155 mains. Now your bike/s must go like a rocket compared to standard. Just for interest sake may I ask another question? Can you remember back to when your settings were similar to mine and how well your bikes went and then, compared to your now using the K&N's and your current settings? What I'm asking is, how much more did the bikes accelerate and pull. I would expect it was/is really something to talk about eh?