Report this forum post

Hi havin a problem with back firing, changed sparkplugs, stripped and cleaned gas unit, replaced little filter with magnet just after gas bottle, run diagnostic check but no mil light coming on. does not backfire all time sometimes once or twice a day. Engine runs smooth no missing. Engine is the g420 fe. Cleaned o2 sensors any ideas guys. Havent replaced the carb diaphragm but cleaned and looks ok.
doosan g30s-5 pro 5
  • Posted 18 May 2010 21:38
  • Modified 18 May 2010 21:39 by poster
  • By simon_a
  • joined 28 Jul'06 - 17 messages
  • south yorkshire, United Kingdom

This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.

Indicates mandatory field
TOC Europe wraps up Rotterdam, Netherlands

PREMIUM business

Combilift Ltd
Manufactures world class 4-way Handling Solutions
Latest job alerts …
Indianapolis, IN, United States
Saratoga, United States
East Syracuse, United States
Columbia, SC, United States
Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025
Movers & Shakers
Jeannette Walker Jeannette Walker
CEO, MHEDA
President, European Rental Association (ERA)
Chief marketing officer, JLT Mobile Computers
Chief executive officer, East Penn Manufacturing
Upcoming industry events …
October 6-9, 2025 - Detroit, MI, United States
October 6-9, 2025 - Detroit, MI, United States
November 14, 2025 - Melbourne, Australia
Global Industry News
edition #1237 - 3 July 2025
While innovation and new technology are evolving at what seems to be an ever-increasing pace, the need to capture the data (telemetry) from this tech, and the ability to utilise it (telematics) for efficiency and cost savings, is one area attracting more and more attention ... Continue reading