Triumphrat

rickj

Those reliable how-to's really help me get going on a project. I have the factory servicemanual- is that the best carb-removal pilot jet install source?? are there better write-ups around?

Am I "leading with my chin" by not doing some searching first?- Guess I feel like POSTING!!

While on the topic...
1. How much time should I allow for first time jet?
2. When Jimmy900 says no need to re-pilot after tors BELIEVE HIM- I am running real rich after dealer re-jet
3.can I go a little bigger? (i have 38 and 42's) I'd like to use the 42's- if they'll work. isn't bigger always better??lol
4 what other adjustments are neeeded after the pilot jet?

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2004 Thunderbird Sport. Solo seat, cowl, TOR's

jimmyj900

If you're already running rich, then why consider the #42 pilots?

If you put them in you're probably going to be unable to adjust the idle mixture, starting will become difficult, your mileage will drop by 5 mpg or more and you'll be fouling plugs pretty consistantly.

Try testing the jet size first. Roll up over 5000 rpm on the smallest throttle possible and see if there's any bucking or if the bike feels weak. If it feels a bit feeble then go to a #40 (1.5 turns on the mixture screws) and try again. If it's better keep the #40s, if it's the same go back to the #38's.

You can try the #42s too, but you'll hear the exhaust sound go dull and you'll probably have some bucking. The mixture screws should be somewhere around 1 turn for that, but the big jets will 'swamp' the mixture adjustment anyway.

BTW, you didn't mention any other mods so I'm assuming the stock intake setup.

Jim

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rickj

If you're already running rich, then why consider the #42 pilots?

Cause I believe the dealer-guy-mechanic put in 45's (that's what the kid said was written on the order from last year...maybe the 5 was a 2?)So I might have 45's and at LEAST 42's- I just asked for larger pilots- I was naive enough to let him decide and I don't remember what it is- can I measure or observe?

If you put them in you're probably going to be unable to adjust the idle mixture, starting will become difficult, your mileage will drop by 5 mpg or more and you'll be fouling plugs pretty consistently.


NOW my pipe tips are black- plugs are black, when I get on it (higher rpm's the guy behind me said it looked like a lot of black smoke coming out, the next time I wound it out- the same guy said it was cleaner- as if I blew out a lot of accumulation. So I'm thinking maybe he DID do 45's...Now I get a tad under 40mpg- less if I'm real aggressive It actually starts pretty well- but hard to adjust choke thereafter to keep it from stalling.

Try testing the jet size first. Roll up over 5000 rpm on the smallest throttle possible and see if there's any bucking or if the bike feels weak. If it feels a bit feeble then go to a #40 (1.5 turns on the mixture screws) and try again. If it's better keep the #40s, if it's the same go back to the #38's.

You can try the #42s too, but you'll hear the exhaust sound go dull and you'll probably have some bucking. The mixture screws should be somewhere around 1 turn for that, but the big jets will 'swamp' the mixture adjustment anyway.

I felt some bucking today- pulling away slowly.
So for my stock air intake and slightly bigger exhausts (TORS) maybe try back to stock first?!?!

BTW, you didn't mention any other mods so I'm assuming the stock intake setup.

yup

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2004 Thunderbird Sport. Solo seat, cowl, TOR's

jimmyj900

The only way to check is to remove the carbs and look at the jets. They'll have a number stamped in them.

You must be using imperial gallons for 40 mpg with those jets!

With #45s installed I'm kind of suprised that you need the choke at all. On my bike any choke made starting almost impossible with #45s.

Blowing soot out the exhaust is a definite indication of too rich jets.

That would be my first choice -- the stock #38 pilots with 2.5 turns on the mixture screws. Get the bike running properly first, then experiment with the bigger jets if you want to. With the current setup you have no baseline to compare against.

FYI, with the #40 pilots I was getting 40.25 mpg (US) and with the #38s installed I'm now at 44 mpg.

Jim

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rickj

Thanks- much appreciated...if yer ever in New York I owe ya a drink...it'll probably be good coffee!

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2004 Thunderbird Sport. Solo seat, cowl, TOR's

jimmyj900

A nice Nicaraguan Angelina Estate in a medium roast would be good...

Jjim

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rickj

I've been dark roasting an Ethiopian Hrar and Indian Monsooned Malibar- but I'm willing to lower my standards cause you've been willing to help such a newbie as me (I).
[I can't insert the d#mn smiley that shows mischievous repartee mixed with self awareness...in fact I can't insert ANY smileys!!)

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2004 Thunderbird Sport. Solo seat, cowl, TOR's

jimmyj900

Try a little grease. I'm partial to high temp disk brake grease since it stays where you put it, but some folks prefer a really light grease like Vaseline.

Jim

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rickj

OUCH You just got the last word!
( I was gonna try your other method ["I use a bit of stranded copper wire for a brush (it's softer than the brass and won't damage it) and either carb or brake cleaner as a solvent."])

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2004 Thunderbird Sport. Solo seat, cowl, TOR's