chinese tiller

hi,i have a tiller, like a mantis but not a mantis ( chinese ) its a pig to start,new plug clean air filter  but no go,any ideas  thanx mick

it has yes,,,but ive had it running since then,,primer is working fine   i did take the air filter out to check,,,the sponge was soaked in fuel,,washed that .but no difference    thanx

update,,,went down the lotty shed  brought the tiller home, in the shed,,,no oil cencer,but  ,,after pulling no end of times   gave up   had a cuppa,,went out again,,1 pull it fired  2nd pull it started,,so dam annoying   see if it goes tomorrer  thanx 4 your help

I worked as an engineer on hire machines so can boast experience on small and large engines.
I bought one of those Chinese tillers mainly because the engines are a copy of Honda type.
With all four strokes I always turn off the fuel to stop the engine if its going away for the winter, jet was and dry the tiller,oil cables, bolts and moving parts then empty the oil, leaving the filler plug taped to the choke mech on handle bars.
Before I bought this tiller, I owned a 60s merry and here is the comparison:-

MERRY                                                     CHINESE
Heavy                                                       Does bounce over hard dry clods.
Temperamental                                          Starts on first pull
Difficult to manoeuvre                                 Turn it on a sixpence
parts easy to get                                         don't know, not needed any yet

both are good 5hp motors and both do the job, I have had this one for 2 years digging a 110ft by 70ft several times a year.
So there you have it, keep the Mantis for window boxes , these are a usable replacement for the trusty red devils.

Please note, NEVER RUN A 2 STROKE DRY if you have to mix the petroil.
Huge thanks

On Ebay between £320 and £400 have had one 4/5 years no problems
Pipfit