Yahoo Answers is shutting down on 4 May 2021 (Eastern Time) and the Yahoo Answers website is now in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

intruder 1500 poor gas mileage?

im geting about 22 miles a gallon on my bike which should be geting 35 in town. im changing the air filter, spark plugs, running carb cleaner in it. it has aftermarket pipes an pops on deceleration

4 Answers

Relevance
  • 2 years ago

    It needs rejetting to match the aftermarket pipes.

  • 2 years ago

    Check the engine oil, if it smells a small like fuel you may have a leak in the main jet seating.

    Did you rejet the carbs when the aftermarket (guessing freer flowing/louder) pipes were installed? Bigger jets lets fuel flow so more fuel.

    Source(s): riding/racing for 55+ yrs.
  • 2 years ago

    Needs intake adjustment to match pipes. Either jet kit for carb or Power Commander (or the like) for FI.

  • Anonymous
    2 years ago

    Try cleaning fuel tap and screen, inline filter; if any and not EFI. Rust from tank, gum/varnish can clog idle circuits and pilot jets and make you have to give her throttle a lot to compensate.

    Optional reading: Could clutch be slipping? Low tires?

    Opened-up exhausts often causes harder starting, lower performance, harder starting, bad idle, lower mileage. But, not by 37 %.

    Also check for vacc leaks. IDK if this is carbureted or not (no year given and "carb cleaner" often used to clean Injectors, too.) Spray some WD 40 around carbies/boots/whatever intake fittings while running. If RPM changes at all, a vacc leak. tighten boots or patch w/ black Shoe Goo or silicone.

    Some carbs cant be fixed even with cleaner in tank., Like a VStar 650. Carbs must be rebuilt, vac diapragms replaced. We went round and round with a dead cylinder on one; no, not ignition/timing/vacuum/compression. After two carb cleanings; I replaced carbs, only thing left. 55 MPG, now.

Still have questions? Get answers by asking now.