Last night I purchased some used TORs for my 2004 Bonnie Black from a guy who had upgraded to D&Ds. The pipes had just been sitting around boxed up for the last few years and he was as happy to get rid of them as I was to get them. (Anyone have suggestions for removing a small amount of topical rust without killing the chrome?)
Nevertheless, they didn't come with any jets or instructions for jetting and I was wondering if anyone has suggestions for optimal sizes?
Also, is it worthwhile to switch out the pilot jets and needles as well as the main jets? What benefits will I get from having this done?
Lastly, is changing the jets and tuning the bike something that I could do myself--given that I do not have a garage, any experience, or mechanical prowess? Is there anything to look out for when tuning the bike for new jets on the TORs?
Fine grade steel wool will remove the rust and not damage the chrome. I had 125/42's with my TOR's (long) with the unifilter at near sea-level altitude. I'd call Bella Corse and ask for his advice, it was spot on for me.
Rejetting is not terribly diffucult. Get the allen-head screw set from either Bella Corse or NewBonneville.com to make future changes easy.
Rejetting brought good SOTP results with my setup, it will be worth the effort.
115s are what come with the TORs, so if you're bike is stock, they should be correct.
If you can afford it, just have the dealer do the pipes and jets. That way you'll know they are done right. The first time changing jets is especially difficult because it's easy to strip the little brass screws. Save yourself the headache.
efg,
You will probably have to pay for an hour shop time, minimum, and maybe as much as 1.5 hours. I wouldn't think you would have to pay for much more than that amount.
Larry
Really? I was quoted by 3 different local dealers: 1 hour ($90); $175-$200, and 3 hours/$260ish so I am not really sure what is reasonable... Since I bought the pipes used fro $150, I can't imagine spending more on the install than I did on the pipes, bhut I guess that is right then.
Paying $260 makes me just want to do it myself, even though I have NO idea what I am doing...
The job is fairly easy. IF you decide to do it yourself, keep in mind that the screws holding on the carburetor bowls are very soft and will strip easily. Use a PROPER fitting #2 screwdriver. I used to have the tor pipes with a uni filter. I ran a set of #42 pilots and a set of #115 mains. Those are what came with the pipes. I imagine a set of #120 mains would probably be fine too. If you search around, I believe I saw a step by step photographed detailed instruction for rejetting on a Bonneville America if I remember right. Go for it, it's not bad. I also recommend getting a carburetor synchronizer to reset your balance of the carbs. This too is very easy, and the money you are saving easily makes your purchases paid for on their first use. The Bonneville is a straightforward bike. No BS. It is easy to service and that is a lot of the appeal of the bike.
As was posted, 115 jets come with the TOR's. At that, it still runs on the lean side. You could probably easily go to 118's, depending on your altitude. With rear baffles removed and the remaining baffles drilled on my stock pipes, I ran 120's which just a trifle rich. !!8's would have been ideal. I'm at sea level.
By the way, the TOR's for the America are not the same as TOR's for the Bonneville/T100.
Check out Dinqua's "carb rejetting page" before you make a decision. I've worked on auto carbs before, but never rejetted a bike. With a few, good quality tools it was not too difficult. Pat's instructions and photo's are crystal clear. Maybe a list member in your area might even do an assist, don't be afraid to ask.
Thanks for all the suggestions. I haven't had a chance to work on anything (or even order the parts yet) as work ran through the entire weekend and a couple of sleepless nights this week. Hopefully I will be able to sort through everything this weekend, get my parts/tools list set up and read over the instructions a few times to see if it is within my minimal skill level before I go into things next weekend.
Well, I chickened out. I decided to let the professionals do the rejetting, and it was probably for the best.
This morning I woke up at 7am, went out and installed my TORs then rode over to California Triumph and lef the bike in their capable hands. They rejetted with 115 mains and 3 needle shims, and took off the AI system.
She is now running quite well, and as an added bonus, I got to ride around on a loaner BMW 1150R something-or-other for the morning while they worked. THe bonnie has a good amount of added oomph, and sounds delicious.
Thanks again to all. Maybe when I eventually upgrade to my D&Ds, I will have the experience (and garage-space) to do it all myself.
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