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Author Topic: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend  (Read 659 times)

RedRyder

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Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« on: December 14, 2020, 07:56:27 pm »
Tuned an M90 Hit & Miss Gas Engine Engine for a Friend




Stoker

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #1 on: December 14, 2020, 11:38:53 pm »
Most Excellent Gil !!!

So I get that as firing about every other second (~30 hits/min) and spinning out about 30 revs per hit as well.

Now that you have sooooooooo much experience at tuning these little puppies, how about a check list of things that you did to get this one where it now is ..... which is FANTASTIC!?!?
"Information is not knowledge, Knowledge is not wisdom, Wisdom is not truth, Truth is not beauty, Beauty is not love, Love is not music: Music is THE BEST...   
Wisdom is the domain of the Wis (which is extinct). Beauty is a French phonetic corruption of a short cloth neck ornament currently in resurgence..."
F. Zappa ... by way of Mary, the girl from the bus.

RedRyder

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #2 on: December 15, 2020, 06:43:54 am »
It is firing 28 times per minute and freewheeling 32-34 revolutions between firing.
I did all the stuff I published before on other M90's.
Only difference is this one had only one O-ring from the factory.
I did switch the O-ring as the original had lost some elasticity.

Nick

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #3 on: December 15, 2020, 07:57:32 am »
Very nice runner now  8)
Nick

Stoker

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #4 on: December 15, 2020, 12:11:42 pm »
It is firing 28 times per minute and freewheeling 32-34 revolutions between firing.
I did all the stuff I published before on other M90's.
Only difference is this one had only one O-ring from the factory.
I did switch the O-ring as the original had lost some elasticity.

Yes Gil, I well know you have presented all of these wonderful mods before, but I was thinking of making a simple 1,2,3,4,... type listing that could then be made a locked sticky at the top of one of the appropriate Boards, for all to easily access without having to search and wade through different Boards and long Threads. Perhaps even make the list in the order of best effect achieved, or maybe of easiest mods to do first etc.

Just a thought ...
"Information is not knowledge, Knowledge is not wisdom, Wisdom is not truth, Truth is not beauty, Beauty is not love, Love is not music: Music is THE BEST...   
Wisdom is the domain of the Wis (which is extinct). Beauty is a French phonetic corruption of a short cloth neck ornament currently in resurgence..."
F. Zappa ... by way of Mary, the girl from the bus.

St Paul Steam

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #5 on: December 15, 2020, 03:38:00 pm »
It is firing 28 times per minute and freewheeling 32-34 revolutions between firing.
I did all the stuff I published before on other M90's.
Only difference is this one had only one O-ring from the factory.
I did switch the O-ring as the original had lost some elasticity.

Yes Gil, I well know you have presented all of these wonderful mods before, but I was thinking of making a simple 1,2,3,4,... type listing that could then be made a locked sticky at the top of one of the appropriate Boards, for all to easily access without having to search and wade through different Boards and long Threads. Perhaps even make the list in the order of best effect achieved, or maybe of easiest mods to do first etc.

Just a thought ...
Nice work Gil
I like your idea Daniel , it would be nice to have a go to "sticky" thread for enthusiasts to consult to. Per the degree of their ability.
Bruce, St. Paul Indiana, USA
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RedRyder

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #6 on: December 16, 2020, 06:18:30 pm »
Here is another short video.

It fires 8 times over 20 seconds which is 24 times per minute!

Enjoy,

Gil


Jim

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Re: Tuned an M90 Hit & Miss Gas Engine Engine for a Friend
« Reply #7 on: December 16, 2020, 06:40:23 pm »
If you weren't so far away Gil.....I'd be sending all of mine to you for a tune up :)
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Jim

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