Quote:
If you consider the difference in range of these jets me looking at a possible 98 and the top end here at around a 42 what type of difference in consumption will this make?
Probably nothing unless you are at wot all the time ! The mains are only in effect during the last bit of throttle opening. Mainly WOT. The needles are where the main body of performance is because it covers the throttle opening thru most of the range except the very top and bottom.
Quote:
As far as jets and manuals, my 03 TA came with 120 mains. My manual says 110. Last time I was at my dealer's shop, I noticed he had 2 different manuals on the shelf in the shop area. Maybe it's just a misprint in the older manual.
I would bet the reason for this is that when they change an "adjustment" which is basically what jetting is, they don't revise the manuals. No on does. never seen any manufacturer of anything from vehicles to stereo equipment change theier manual to reflect cheanges in the produt UNTILL the product is changed in a major way. Therefore it makes sense that whatever the first jet sizes were in the first speedy are what were in the manuals till the 05' 865 model came out. And even if they do make small changes in the manuals between total revisions, they often don't get to them till well after the fact. My 05' came with on pre 05' owner's manual in it. Wouldn't be suprised if the 06 models are still shipping with 04 and earlier ones.
Last edited by iknowjohnny; 11/11/2005 11:46 AM.
