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post #1 of 17 (permalink) Old 01-31-2010, 03:49 PM Thread Starter
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I currently have a set of Jardine mufflers on the bike and have just purchased the Bassani X-tractor crossover. Since I already have the carbs off the bike, I was wondering if it would be necessary or beneficial to rejet the carbs to compensate for the free flow exhaust? Thoughts or opinions??

It will be interesting to hear how loud it will be. It took me a while to get used to just the Jardine pipes. I wasn't looking for noise, but performance enhancement.


I've got ADHD on my winter maintenance program this year. I think I'm biting off more than I can chew:
Clean and overhaul carbs
Replace vacuum lines
Install Progressive shocks
Replace outdated ECU and Carb control units
Moly the rear end
Bleed clutch
Replace coil packs and ignition wires
And of course endless hours of cleaning under the tupper ware.



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post #2 of 17 (permalink) Old 01-31-2010, 05:35 PM
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The people who built the exhaust mod would be a better source of info on the necessity of re-jetting.

Why ain't we ridin'?
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post #3 of 17 (permalink) Old 01-31-2010, 11:29 PM
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HogansWing wrote:
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I currently have a set of Jardine mufflers on the bike and have just purchased the Bassani X-tractor crossover. Since I already have the carbs off the bike, I was wondering if it would be necessary or beneficial to rejet the carbs to compensate for the free flow exhaust? Thoughts or opinions??


Replace outdated ECU and Carb control units


What does replacing the ECU and carb control unit do for you or help? I am interested in anything that will boost my performance.

Also i have the Jardine pipes so i am interested to see the replies to this thread.

Also, what does the X tractor do for you and was the install too hard?

2002 GL 1800 Current Ride
1988 Honda GL 1500 SOLD
1998 Honda XR 400R
2002 Honda GL 1800 sold
2007 Yamaha V-Star 1300 burned
2001 Honda 750 Nighthawk wrecked
1976 Kawasaki KZ 750 sold


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post #4 of 17 (permalink) Old 02-01-2010, 12:20 AM
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The manufacturers site may help but you will need to take into account that you have made changes from stock on the ignition side as well. I'm afraid that you may just have to install the carbs and do a plug chop and see if rejeting is required that way.

In my experience with two strokes rejetting just shifted the powerband of the bike but this may prove beneficial as this may give power where your riding style needs it.

With most tuning I always do one change at a time and then assess the results. It's easier to undo the change if you don't like it.

keep the old girl on the road

1980 gl1100 A canadian import. mileage 150,000 +
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post #5 of 17 (permalink) Old 02-01-2010, 02:01 AM
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i have changed pipes on a couple 1200s and didn't have to change a thing. actually ran much better with the free breathing pipes.

just do it and ask questions later. if you never start you\'ll never finish.

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cc permit
1988 1500 trike to be
1980 cb900 custom
gl 1988 1500 trike sold
2003 flhtuci sold
gl 1986 1200 trike sold
gl 1984 1200 trike sold
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post #6 of 17 (permalink) Old 02-01-2010, 06:19 AM Thread Starter
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D N R, the carb control unit and ECU replacement were from the service bulletins Honda put out for the low speed improvement on the 88 and 89's. Mine was not upgraded. One of the PO's must have put a fake x on the frame. Like Gold Top said, I plan on getting the bike running on the old ECU and CC and switch them out one at a time. I bought them used on Fleabay so I'm not sure if they are good-yet. Let me know if you need a copy of the bulletins and I'll send them to you.
The extractor is supposed to increase your horsepower, torque and improve fuel mileage, we will see. I've got a couple of months before I can test it and it's probably the last thing on my to-do list. I picked it up on ebay as well for a song. They sell new for $350! As far as install, they say no adapters necessary and do not sit lower than the OEM.

I found this: http://www.vencowings.com/heli_pipes_noborder.html

Don't tell the wife, but this is what sold me on them.....from their most popular questions list:

10. Will I get more girls if I install a Bassani aft-cat exhaust?
Yes.

Bike and Denis, my searches came up empty on needing to rejet the carbs. Bassani's website doesn't even list the GL. Not cool enough I guess, they only list HD's and Victory's. I guess I'll have to wait and see and probably just need to sink the carbs once I'm all done.




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post #7 of 17 (permalink) Old 02-01-2010, 08:46 AM
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If your trying to get more power from the motor you should rejet he carbs. It will run leaner with new exhaust which can cause the motor to run hotter or ping. Too lean and you can burn valves. When you rejet your compensating for the lean condition by adding more fuel, which in turn makes more power when done correctly. Mileage might also increase, as the added power helps the motor not work as hard.Before you rejet, put new plugs in and read how the plugs are burning with the new exhaust. You might not need to touch anything

Bikes Ive owned, \'69 Norton,\'48 Harley panhead, \'71 Bsa, \'76 gl1000,\'93 Harley ultra,\'03 Harley ultra,\'05 Sportster, \'82 GW 1100.\'96 Police road king very used. "I tried thinking once, but nothing happened" .,,,
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post #8 of 17 (permalink) Old 02-01-2010, 12:53 PM
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Hogan, i sent you a PM

2002 GL 1800 Current Ride
1988 Honda GL 1500 SOLD
1998 Honda XR 400R
2002 Honda GL 1800 sold
2007 Yamaha V-Star 1300 burned
2001 Honda 750 Nighthawk wrecked
1976 Kawasaki KZ 750 sold


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post #9 of 17 (permalink) Old 02-01-2010, 06:40 PM Thread Starter
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dustin neal rose wrote:
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Hogan, i sent you a PM
Dustin, I sent you the service bulletins to your email.
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post #10 of 17 (permalink) Old 02-02-2010, 07:27 PM
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For plugs give the E3 diamond fire plugs, they add power you can feel.


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CUT IT TWICE AND ITS STILL TO SHORT!!!

Previous rides:Royal Enfield 250, Hodoka 90, Yamaha 80,160,QT50, Norton 250, BSA 500, Kawasaki 450ltd, Susuki 125, Vespa, Hondas CT90/110, C70, Twinstar, cb400F, 3-CM400A\'s, CM400C, CB650C, 7-CB900c\'s. Not counting all the off brand and home built mini bikes and mopeds.
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