OK..'97 owners who have installed #38 slow jets..question

[Medic]

Anyone out there with a '97 and have switched the slow jets to #38....how many turns out on the pilots did you find worked?

The '97 has different carbs, and the OEM settings are different then the later models...so I assume the post #38 slow jet install setting would be different as well.

I've had the new slow jets for a few months now...finally have some time set aside next week to do the switch-out (also rebuilding the Petcock at the same time)...and would like to have an idea on a starting point for the pilots.

Not doing a complete rejet or changing the mains or needles.

Thanks....

[Patrick]

The only difference that I'm aware of with the '97 carburetors is/are the needles.. So i would think the pilot setting for the 38 jets would be about the same for any year bike.. 2.25 turns works about right for the 35 jets and 1.5-1.75 seems to be the number for the 38s..

[Warlock]

Anyone out there with a '97 and have switched the slow jets to #38....how many turns out on the pilots did you find worked?

The '97 has different carbs, and the OEM settings are different then the later models...so I assume the post #38 slow jet install setting would be different as well.

I've had the new slow jets for a few months now...finally have some time set aside next week to do the switch-out (also rebuilding the Petcock at the same time)...and would like to have an idea on a starting point for the pilots.

Not doing a complete rejet or changing the mains or needles.

Thanks....

I'm running 38's in my 98 standard. Started out at 1 1/2 turns. Now have them at 1 1/4. Also running Ragnar cut on my exhaust with IS carb springs and dyna jet needles and 6 degree trigger wheel. She will run real strong, but gas milage not too good. I guess I can't have my cake and eat it to.
David

[98valk]

[
[/quote] I'm running 38's in my 98 standard. Started out at 1 1/2 turns. Now have them at 1 1/4. Also running Ragnar cut on my exhaust with IS carb springs and dyna jet needles and 6 degree trigger wheel. She will run real strong, but gas milage not too good. I guess I can't have my cake and eat it to.
David
[/quote]


the dyna jets needles are the richest needles that are available. lower them and your mpg will go up. U want to only be using the pilot jets during hwy cruise, 1/8 throttle, this will reward great mpg. try opening up the mixture screws more so that u will be in the 1/8 throttle range.

[98valk]

Anyone out there with a '97 and have switched the slow jets to #38....how many turns out on the pilots did you find worked?
The '97 has different carbs, and the OEM settings are different then the later models...so I assume the post #38 slow jet install setting would be different as well.

only part #s are different for the '97. the carbs are not different. all valkyries have the same exact carbs, all are 28mm throttle bore, all have the same exact needles, all slow jets are #35 and all mains are #100, all float levels are the same, this is for US bikes. only the I/S has different slide springs. all honda did was change part #s after '97 which a lot of manufacturers, bike and auto do. if u try to get the '97 part #s from honda they will give u the new part #s.  The OEM initial mixture settings are different yet u still adjust them to your location and bike operating conditions.
this is all in the service manual.

[Warlock]

[

I'm running 38's in my 98 standard. Started out at 1 1/2 turns. Now have them at 1 1/4. Also running Ragnar cut on my exhaust with IS carb springs and dyna jet needles and 6 degree trigger wheel. She will run real strong, but gas milage not too good. I guess I can't have my cake and eat it to.
David
[/quote]


the dyna jets needles are the richest needles that are available. lower them and your mpg will go up. U want to only be using the pilot jets during hwy cruise, 1/8 throttle, this will reward great mpg. try opening up the mixture screws more so that u will be in the 1/8 throttle range.
[/quote] I ran this same setup on my 99 tourer, only difference is my 99 had 35 instead of 38's. I would get around 152 miles before resv and that's 2 up and loaded. The best my 98 will get is 30 mpg running 3000 rpm's. I will say it will fly. So I'm having fun with it. I might try and raise the clip 1 notch and see what happens.
David

[Medic]

Alright..so I'm slightly confused now....I understand that manufacturers changed their part #'s over time. But I have read many times before that the '97's had different carbs. If only the part # changed, then why does the Honda Service Manual give  2 1/4 as the initial setting for the pilots (except California models) on all models but '97 and  1 3/4 (except California as well) for the '97 only? This comes directly from page 5-22 of the Honda Service Manual

[MP]

Medic:
I agree with you.  If same except for the part number, the settings should be the same.  Some people believe different things.  Need to sort thru what you believe.
MP

[98valk]

Medic: I agree with you.  If same except for the part number, the settings should be the same.  Some people believe different things.  Need to sort thru what you believe.
MP

all of the specs I provided are from the factory tech manual '97-'01, pg 1-6 and pg 5-2.  meeting the nazi epa requirements for a specific yr could account for the intial settings. however they are only initial settings which really means nothing since one has to adjust them anyways per pg  5-22. so for joey surfboard they could be 2 turns out and joey bagofdonuts they could be 2 1/2 turns out for final adjustment.
the carbs are all the same size 28mm. unless honda is lying in the manual all of the carbs are the same size, all of the jets and all of the needles are the same every yr.
The '97 bike that was used for the mag testing was warmed over to get the 100hp and 100tq. real world bikes have never dyno'd those #s. each dyno is different. I modified my '98s airbox, jetting and exhaust and hit the 100/100 on the local dyno at 70F, at inzane II the bike did 97.5 hp and 96.2 tq and was running rich at the top end at 92F.