Another 1000st airbox question

I didn't say they were fat. The shaft slowed them down some and all that duct work couldn't help it ether. Thank you Fed. :pinch:
I liked the idea of not having a chain until I read the reviews of the day.
Steve

And reviews of the day said the H2 had 'superb brakes' 'good handling' and was 'a good touring bike'

Yet now folks call them utter garbage? Maybe the reviewers in that case got a good one, and other folks got turds, and vice versa for the ST? Look at the v-max shaft drive and over the top power, shafties can run as well

swest wrote: I didn't say they were fat. The shaft slowed them down some and all that duct work couldn't help it ether. Thank you Fed. :pinch:
I liked the idea of not having a chain until I read the reviews of the day.
Steve

I agree that the chains were faster and you can fool around with the gearing with a chain where you got what you got with the shaft.
as far as slow --the one i had when i was 21 had 160 on the speedometer and i took it to that mark just to see..
Ill never see that now. I like to have some power when i need it but im done trying to kill myself.
I do think the shaft is a nice ride..so much so that im looking at buying another one this week(hopefully)
the guy that has the z1classic i been eyeing also has a shft and im leaning toward it instead .

I didn't mean to offend. The Yam 1100 I showed was slowed down some by it's shaft. Still a good bike as is the ST.
I'm just a little irritated. I had to ban a persistent spammer.
Steve

no offence at all Steve ..i dont mind a little ribbing here and there ..its all good.

Still nice bikes. I had a Yam 11 come into my bay with gummed up carbs, bad tires and minor brake issues. The owner cut two back bone tubes to fit a Honda peanut tank. I didn't want to touch it but he begged me to. No other shop would touch it. I got it running, it was a power house, nice bike. I called him to pick it up. I scolded him about what he did to the frame, handed him a $900 bill/job order with NOT FOR STREET USE.
He said it was OK, he was taking it to Mexico to sell anyway. I know the roads down there and that bike was a goner.
Too bad. :dry:
Steve

I left the screens and elbow on my 79st and just installed a K&N. It ran real strong but always a bit lean on cruise.
It was a fresh 1045 with cams and a 4-1. I should have put a richer needle valve in it.
I think it was 1 size larger on the pilot and 2 on the mains.

I left the screens and elbow on my 79st and just installed a K&N. It ran real strong but always a bit lean on cruise.
It was a fresh 1045 with cams and a 4-1. I should have put a richer needle valve in it.
I think it was 1 size larger on the pilot and 2 on the mains.

Can you go up one step on the needles?
Steve

If the tapered jet needles have richer clip positions, the next richer clip positions could be fitted and tested.

If the tapered jet needles don't have different clip positions (i.e., not intended to be adjusted), it's sometimes possible to add a small thin washer to each assembly whereby the jet needles are slightly raised from their stock positions.

Good Fortune!

swest wrote: Can you go up one step on the needles?
Steve

If im not mistaken, my 80 st. Doesn't have clips to be adjusted.

Adding just a kn filter on the st I don't think will affect much. What did affect mine from bone stock is when I added the VH pipe plus the kN. Now of course that's with the vm28 pumper carbs. I can't remember where exactly im at with the jetting ( mistake for not writing it down but I need yet another +1 on the mains so I will check the numbers on the jets next time I pull the carbs), but anyways, I am currently at least +2 on the pilots and mains. Everything seems well from idle to midrange and wide open throttle. But in 1st gear WOT shes out of fuel at the approx 7,500 rpm mark. So hopefully one maybe two more sizes on the mains will serve her well. Or perhaps I will try the washer method to raise the jet needle. Just to share my experience so far with tuning my st.

Main jet size should have little if any effect on the mixture at any throttle position other than wide open.

At less than wot, the position of the tapered jet needle inside the needle jet orifice governs the mixture by limiting the amount of fuel passing into the carb bore, regardless of the main jet size.

With throttle is being barely held open, the pilot circuit still influences the mixture.

Good Fortune!