AH YES....front spocket nut can be realy tight...i bought on of those impact air wrenches to get mine off...the type used in quick fit....makes a great sound....even that struggled to loosen the nut.all done now and torqued up correctly so should be easy next time.....loads of help on here if you need it

virtual bodysnatcher...thanks for the advise,bikes always garaged and never used in winter,serviced at the end of last year and given a good going over with no problems.
 i had time to replace the inlet rubbers today with the ones i got from mad4bikes,side by side its a job to tell them apart and they fit realy well...approx 5hrs from start to finish including a good clean as i went,first time for me so not too bad
 not had time for a test ride yet ill do that in the morning
 i think i found the stutted problem when i lifted the tank off,both the breather pipes were badly kinked and not able to do there job,i straightened them out and re-routed them,fingers crossed for the test ride tommrow......
 the old rubbers although badly cracked on the outside were damage free on the inside,they are quite thick.....will update after the test ride tommrow  

my red fazer now has a misfire,anything below 4000 and again at 7000 rpm,makes it interesting to ride ,all being well the new ones should be fitted on sunday,i tryed the wd40 test with no smoke or uneven running so iam thinking i might have more than one problem...might put the carb vacuum guages on before i start and see what sort of reading i get they have not been balanced for years....    

could be that the brake lines have collapsed,ive see this lots of times,they look good from the outside

Use the centre stand..
Measure the slack at the mid point between the 2 sprockets.
 
I simply put my finger under the chain somewhere under the rear hanger and lift it . If its more than 4cm of slack then I'll go and look at the book to see what it really should be.
Its never needed adjusting in 10 years.... Engine oil is a fine chain lubricant 

cant belive you have never adjusted your chain in 10 years...do you get someone else to do it ?....for a lubricant i always use chain lube....engine oil is just going to fly off and make a mess of the back wheel

have you tryed soaking the seals in brake fluid this sometimes helps...ive not done a fazer but its worked on lots of other seals..........

my inlet rubbers have been cracked for years and the bike has run fine,just lately ive had trouble pulling past 7000rpm so i bought the £75 rubbers on ebay ( user name mad for bikes ) i got them yesturday and am very pleased with the quality much the same as the origanals,not fitted yet but will let you know how i get on....