I'm upto 3 hayterettes now
2 Hayter 21's and the osprey
not to mention the vast collection of other assorted B&S engined rotarys I have
ive decided to repair a few machines to sell on
nothing interesting just the standard modern units
the old machines is my real interest
They are great machines
ive a 5hp and a 3hp one
im tempted to put a newer black 5hp onto the 3 hp machine
im not restoring them but getting them doing what they do best
Cutting grass other machines will struggle with
Is it the Briggs and Stratton engine with the carb on top of the fuel tank
these can suffer with diaphragms perishing and I've known the plastic carbs to come loose on the tanks causing hunting as you describe
check the carb is tight to the tank
check air filter is clean
check mixture adjustment
failing that fit a carb rebuild kit
Hi all
I'm new to the group
I've just rediscovered my interest in older rotary mowers
I used to tinker with them 25+ years ago
ive recently bought a couple of hayterettes a Hayter 21 and an Osprey to play with
hopefully I can help someone on here one day and might even need a bit of help myself at some point
im not planning to restore the machines not work them as they were intended
currently from the 4 I bought as none runners I've got the 5hp hayterette working like a dream and the 21 running and driving. The 21 needs servicing and welding
The osprey is part stripped as bought but needs clutch work and a new drive chain with a tiny patch of welding once I have put the coil point etc back on and got it running
the 3 hp hayterette is being naughty and
sheared 3 flywheel woodruff keys for no obvious reason
i did discover the blade disk was loose though and suspect kick back and the inertia of the loose disk to be the issue
will look at that when I get chance
i do have another 5hp engine I can fit if it decides to carry on being silly though it is a more modern engine
that just needs its float valve seat replacing and it should be a good motor
John