[vhgmcbuddy]

Darren and I had an interesting discussion on timing the Wico mag. on the Howard Gem. I went back and re read the original instructions from the Howard Gem original manual which gives no instructions for timing on the impulse spark, However , the original Wico instructions do! The setting for the imulse spark is 1/8″ BTDC (and it tells you not to wind up the impulse, but to hold the trip lever in with your thumb) and the timing for the running spark is 3/8″ BTDC, it also mentions that the three positions for the “Stop” on the impulse are to give a variation of 5-35 Degrees, with more variation from moving the mounting plate. So, back to the drawing board!.

[vhgmcbuddy]

Hello, Does one need to book in to enter a working display or just turn up? Is ploughing available?
I would like to bring a Ransomes crawler.

[vhgmcbuddy]

Hi Andy i thought that might have been the reason why , was the first one id ever seen so i thought id ask lol. See you on sunday m8.

[vhgmcbuddy]

Heres a closer pic

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[vhgmcbuddy]

Ive noticed this 700 has a different configuration to the one i have , it looks like the tank was re designed due to the vibration issues breaking the fixings where the tank used to connect to the head . I do know these used to break due to vibration , so did howard re design the tank or has some clever clogs modified this tank themselves ?

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[vhgmcbuddy]

I tried using the carb from my mk1 clifford rotavator, but it still doesn’t rev properly. I also tried putting the machine under load; it’s like it gets quite close to going into that purring mode, but not quite. It does cut the brambles ok, but just doesn’t quite sound right.
I also looked at the govenor, but that seems to be fine. Would the points gap affect the revs? Does anyone know what the points gap should be? Any other ideas as to what the problem could be would be appreciated.

[vhgmcbuddy]

Thought they looked different. Mine (the one in my profile picture) has a Douglas engine and looks similar to the jap one.
Thanks for the info.

[vhgmcbuddy]

ok thank u i will have simar with plough see u there cheers

[vhgmcbuddy]

Thanks for that Will-haggle, I couldn’t find a picture with a belt on either.

[vhgmcbuddy]

Yes, that certainly looks like it!

[vhgmcbuddy]

I don’t know if the pictures are of the same trusty as I know my Grandad had at least two. What I do remember is that it was always a pain to get started!
At least one of them ended up in Africa.

[vhgmcbuddy]

Been in touch with Meetens as Charlie suggested.
Apparently it is quite a problem on the JAP 600, so much so that they’ve run out of replacement valves!
Beginning to look like a custom valve might be the way forward.

[vhgmcbuddy]

Thanks for that hortiman, Just trying to work out if I can afford to pick one up on my trailer, will let you know the outcome. Regards Plonker

[vhgmcbuddy]

Thanks for that information Charlie, it will be very helpful.

[vhgmcbuddy]

Many Thanks for the information Peter, it’s much appreciated,

Thanks Ian & Anthony

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