Guzzi World Posted November 3, 2008 Share Posted November 3, 2008 my 01 rosso hesitate to accelerate below 50 mph, like if was not getting the right amount of gas . above 50-55 mph as no problem. any idea ? Link to comment Share on other sites More sharing options...
dabore84 Posted November 3, 2008 Share Posted November 3, 2008 Some more information would be welcome, mileage, age of the bike, weird engine sounds. Does it happen all the time? Link to comment Share on other sites More sharing options...
Tom M Posted November 3, 2008 Share Posted November 3, 2008 my 01 rosso hesitate to accelerate below 50 mph, like if was not getting the right amount of gas . above 50-55 mph as no problem. any idea ? You need to give us more information. At what rpm and what gear does it occur? At what throttle opening? Is the bike stock or modified? If modified, what was done? How old are the spark plugs? Are the relays stock? Some here have traced hesitation or stuttering under acceleration to a bad relay. The stock relays are notorious for causing problems. Most people here replace them all at the first sign of trouble. A very cost effective source for reliable relays is http://www.dpguzzi.com/relay.htm. A source for higher spec relays is http://www.motratech.com/MGR-C20.html. Link to comment Share on other sites More sharing options...
Guzzi World Posted November 4, 2008 Author Share Posted November 4, 2008 You need to give us more information.At what rpm and what gear does it occur? At what throttle opening? Is the bike stock or modified? If modified, what was done? How old are the spark plugs? Are the relays stock? Some here have traced hesitation or stuttering under acceleration to a bad relay. The stock relays are notorious for causing problems. Most people here replace them all at the first sign of trouble. A very cost effective source for reliable relays is http://www.dpguzzi.com/relay.htm. A source for higher spec relays is http://www.motratech.com/MGR-C20.html. my bike is stock ,it appens at all gear , the plugs are about 1500 miles or 18 months, the relays are stock, it accurs from 1500 to 5000 RPM.thank you Link to comment Share on other sites More sharing options...
dabore84 Posted November 5, 2008 Share Posted November 5, 2008 As Tom says, start with relays (a must) and the plugs. Maybe the bike is running too lean, because it happens in the lower rpm area. Link to comment Share on other sites More sharing options...
Tom M Posted November 5, 2008 Share Posted November 5, 2008 As Tom says, start with relays (a must) and the plugs. Maybe the bike is running too lean, because it happens in the lower rpm area. Another possibility is loose or cracked intake boots between the throttle bodies and the cylinder. If those check out OK I'd replace the parts mentioned above just because they're so cheap and easy to do. If that still doesn't help It's probably time for a valve adjust/throttle body balance/TPS adjustment. Link to comment Share on other sites More sharing options...
Guzzi World Posted November 5, 2008 Author Share Posted November 5, 2008 Another possibility is loose or cracked intake boots between the throttle bodies and the cylinder. If those check out OK I'd replace the parts mentioned above just because they're so cheap and easy to do. If that still doesn't help It's probably time for a valve adjust/throttle body balance/TPS adjustment.thanks guys. Link to comment Share on other sites More sharing options...
Guzzi World Posted November 8, 2008 Author Share Posted November 8, 2008 thanks guys.I swapped the relays and the bike never ran better .I bosh relays, I want to replace them anyway should I replace them with the same or other suggestion. thank you Link to comment Share on other sites More sharing options...
docc Posted November 9, 2008 Share Posted November 9, 2008 [/url]. A source for higher spec relays is http://www.motratech.com/MGR-C20.html. +1 Link to comment Share on other sites More sharing options...
fotoguzzi Posted November 9, 2008 Share Posted November 9, 2008 order a full set of relays from Pyro Dan for less that 20 bucks shipped. check his website: dpguzzi.com Link to comment Share on other sites More sharing options...
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