Something wrong with bike. Advice please

[blossomsowner]

seemed to be running quite lot better with the fuel additive/crby cleaner stuff in it,....still missing a bit at low revs but not all the time and running pretty well at open road speeds.


however i refuelled without any additives and performance appears to have dropped off again. consistently missing at low revs and sometimes surging again at highway speeds.

so i think more work is needed

[FROSTY:Me]

Mate the carbs in the rf's do seem to wear internally quite badly. -could be ya problem

[FilthyLuka]

slide wear perhaps?

[FROSTY:Me]

nahh needle/jet from memory --bitta slide too prolly

[riffer]

Oh yeah, those slides sure can wear. Remember they're made of some cheap and shitty plastic.

However, that seems to manifest itself with fluttering jet needles which can get stuck on full throttle leaving you either with one carb wide open or a snapped jet needle making the bike ONLY run on full throttle.

I'm still picking some kind of blockage in the pilot air jet, or even some crap stuck in the needle jets themselves, particularly as it's manifesting itself with rough off-idle running.

Just a thought though - didn't Lou Girardin have something similar happen to his Bandit which was eventually tracked down to some kind of damage to the diaphragms caused by muppetish carb rebuilding?

Could some shit have caused some holes in the carb diaphragms?

[wickle]

thanks for that...........have you used these said additives and do they actually work........or am i better off saving the cash and pulling bike apart again now? Asking this because I have never tried them....

If you use a additive in your fuel, change your oil pretty soon afterward some additives can muck up the viscosity of oil which is most probably what 'Yellowdog" menitioned about extra 10k to engine

[blossomsowner]

have completely stripped and checked/cleaned carbs (big thanks to frosty for his help on this) but didn't seem to be too much wrong. However can now say for sure that there are no blockages in any jets and no obvious wear problems anywhere. will replace sparkplugs before carbs go back on ..........hopefully after work tonight........and keep you all posted.

[blossomsowner]

well............its all better now...........just got back from a quick test run and it pulls like a schoolboy in a brothel.........as it should.


so it now has new air filter, clean shiny carbs without worn bits, and new sparkplugs.

funny thing was sparkplug no1 had a stone on top of it. this stone prevented the plug spanner from going on until said stone was removed. might also have prevented the lead from connecting properly...........could explain a lot.

don't know how it got in there though............



thanks again to frosty for help and advice and to the rest of you lot for useful suggestions
cheers

[Blossom]

Yes a BIG THANKYOUto Frosty for the hands on help with the bike. The man is on cloud nine thismorning. He even left the company cage at home and took the bike to work today despite the fact it was kinda raining thismorning. (he HATES riding in the wet the big girl)
Anyway its a huge sigh of relief to have the girl going properly again. You guys have all been so great with all the advice and help.
Your all awesome.