Hi everyone. I'm back again after the garage almost destroyed my fzr 250 1986 2kr. I have a new question, the fzr now will start fine, and seems fine, doesn't over heat however she also won't rev above 5500rpm without cutting out ? i thought it may be the carbs but wondered what you think it maybe? Thanks Paul
is that underload or neutral? mine was guttless underload, major flat-spotting until i discovered my exup wasn't even in there, i sorced a second-hand one, cleaned, fitted and adjusted the exup now see runs purrs like a wild cat...
Paul, seeing you bike has been sitting for a fair time, I would have to say that you need to clean the carbs/fuel lines/fuel filter as they may have gummed up.. I don't think your bike is an EXUP model? is that correct?? Check for birds nests in the exhaust pipe <!-- s:roll: --><img src="{SMILIES_PATH}/icon_roll.gif" alt=":roll:" title="Rolling LoL" /><!-- s:roll: --> <!-- s:macgun3: --><img src="{SMILIES_PATH}/th_MachineGun3.gif" alt=":macgun3:" title="machine gun 3" /><!-- s:macgun3: -->
Hi its not an exup your right. could it possible maybe the carbs need adjusting? What sort of carb cleaner would you recommend?
I don't know but I believe that it is commonly available at supercheap, repco, autobarn , etc.. Do a search with the search function for the carb cleaning posts on this site as I am sure I have seen references to products.
i use thinners to soak the removed jets ,and carb cleaner for the internals ,,a sonic tank is meant to be the best thing but is a farmed out job so not cheap!
I take it you mean general purpose (lacquer) thinners like that I use for spray painting. Never thought of that! We have an ultra-sonic cleaner at work for cleaning electronic circuit boards (and other things <!-- s --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt="" title="Very Happy" /><!-- s --> ). Interesting thing is that you only use water in it as the cleaning fluid.
I,ve bought two full engines i should be getting in the next 2 weeks. So i will try changing the carbs first if it doesn't improve then i may swap the engines? What do you think
