Join Date: Apr 2002
Location: Sydney, New South Wales, Australia
Fuel Injector cleaning-on the bike
I haven't been able to find anything in the HOW on doing a fuel injector clean, as in "on the bike"....lotsa stuff on pump pressure, vacc adjust setting of throttle bodies etc but nothing specific to getting the injectors back to new.
The procedure as I gather info on is:
a) obtain "trade supply only" fuel injector cleaner. Stuff to put in the tank not worth wasting your money on according to friendly garage mechanic who is sourcing some of this fuel cleaner. Do not spill on paintwork. If you add this hypo cleaner to the fuel cell then it will dislodge crap stuff in the fuel filter. Dunno if it would affect fuel pump or not in the short term, anyway good time to change fuel filter at same time.
b) remove tupperware down to be able to change fuel filter.
c) fuel pump removed with fuel cell, but if not wanting to go to this detail, remove fuel pump electrical supply connector, or fuse.
d) Need to plug the return line fuel hose (the rear hose going into the fuel cell.
e) Now is the tricky part of having some sort of container, this is probably going to have to be specifically fabricated, that will allow the fuel injector cleaner to be added (100-150ml?? as per manufacturer rec for a 4 cylinder), also the connection of an air line set at 50psi, plus a gas tight valve to stop the injector cleaner from dripping out of this container.
f) connect the gas tight valve discharge to the supply fuel line (front hose going into fuel cell which is now disconnected from the fuel cell of course).
g) the fuel injector cleaner is as flammable as fuel so extreme care required......no smoking!!!!
h) start up bike and run for 20 mins with occasional blips of the throttle etc etc.
i) when injector cleaner all used up, shut down and (now good time to change filter, maybe also air filter) refit fuel cell, tupperware etc etc
ok....that seems the general ghist of what to do,...maybe Mark N or David S can add their insight into what I may have missed??
Why do it? Beryl Beemer has 174,000 kms on the clock, (is Beryl the highest kms LT in Oz???) and still chugs along quite fine, (still gets about 4.8l/100kms two up at 110kph) although a certain mate curls his eyebrows at my style of chugging along. Beryl burnt a hole in an exhaust valve maybe 50,000 kms ago, cost $2300 or so at the end of the day to get back on the road, $600 of that was for a head specialist company to check and clean the cylinder head etc. This fuel injector cleaner will also remove crap and stuff from the head/valves and piston crown.
It's just an idea that maybe this should be done every couple of hundred thousand k's?????
19XX BSA 125cc "racing" Bantam
1950 Sunbeam 500cc S7 Combo
19XX Royal Enfield 500 J2 combo
19XX BSA 500cc single B33
1960 Triumph 650cc Tiger 110
1970 Honda 750cc four K1
1975 Triumph Trident 750 triple
1978 XS1100E 1100cc "The Tardis" (ret)
1999 K1200LT "Beryl Beemer"
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