Question about 1990 Moto Guzzi 750 Targa

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I want to build a two into one exhaust system for my 91 moto guzzi 750 targer, need to know how big the chamber after the collector has to be. Want sound and power. Do I need to increase jet size?

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Here's the basic rules: The pipe only needs to be as big as any one pipe.Since you only fire on one cyl. at a time. However most pipe builders will make it 1.5 times the size to make it flow better. If it flows better than stock ( which it will ) you'll need to increase jet size. I usualy go .005 bigger and it always seems to work out about right nomatter what the bike. (k&n air filters will help it all flow better also).

Posted on Oct 02, 2009


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Moto Guzzi Nevada Classic 750 will not start

Hi, David and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
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13. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead acid batteries.
14. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
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20. A stuck bent or burnt valve.
21. Tilt sensor needs a reset.
22. Security system not disarming alarm needs a reset.
23. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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I,m having problems with a 1993 moto guzzi 750,s very hard to start but when it does it runs fine.after about 10 minutes the spark plugs are totally sutted up.have tryed adjusting mixture with no...

clean the carbs the new fuels on sale these days turn to crystal after around a month, make sure u replace all of the jets. They really do get plugged up.

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