[trusty-bloke]

Hi John
If you need an engine manual then drop me a PM .. with your e-mail address on it.
I’ll reply from my company address
Similarly if you want a Trusty “how to” about the clutch, dog clutches and countershaft then I can also send you a pdf of all those details too ..
The Accessory Magazine ran articles in the 1950s on Farm machinery and just happened to do a good one on the Trusty.
Oh, whereabouts are you .. ?
If local I could have a look if you get stuck.
Cheers
Richard (Southampton)

• This reply was modified 1 year, 7 months ago by trusty-bloke.

[trusty-bloke]

If you give Ricky Mapes a ring, he has a load of new / second hand Howard parts for sale .. probably be able to help you.
I’ve messaged you …

[trusty-bloke]

I am not familiar with the 397 (so apologies), but from experience with other carbs a worn butterfly spindle can cause additional air leaking around the butterfly and upsetting the mixture such that the engine will rev and the tickover screw becomes redundant.
If you grasp the shaft and see what movement you have up/down/side/side ..etc..
That could a problem …

My experience is with 24T2 Zenith Carbs ..
Where the brass spindle wears more than the ally carb body …

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