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Search: Posts Made By: partshunt
Showing results 1 to 19 of 19
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Forum: Gas Engines
08-01-2023, 02:51 PM
Replies: 303
Views: 54,615
Posted By partshunt

I bought same engine, a 7-50 UMS last year. I...

I bought same engine, a 7-50 UMS last year. I have had nothing but problems with it. I ran it with UMS carb that it come with the radial, like you say, sensitive and the idle speed lock is not handy...
Forum: Gas Engines
07-16-2023, 08:41 AM
Replies: 303
Views: 54,615
Posted By partshunt

Hyjinx, if the valves are sticking, it must be...

Hyjinx, if the valves are sticking, it must be throwing the pushrods. Or is it like my UMS, misfiring at the spark plugs. Never thru a pushrod yet indicating sticking valves.
Forum: Gas Engines
05-27-2023, 09:49 AM
Replies: 303
Views: 54,615
Posted By partshunt

Timbers, I ran the engine a couple times since I...

Timbers, I ran the engine a couple times since I read your post . My 7-50 cc runs better after accelerating a few times. but really unsteady rpm. The temps on the cylinders vary but nothing...
Forum: Gas Engines
05-15-2023, 04:07 PM
Replies: 303
Views: 54,615
Posted By partshunt

I purchased the 50cc 7cylinder from Morris with a...

I purchased the 50cc 7cylinder from Morris with a UMS carb on it. Run fine but I changed to Walbro carb ordered with the engine. Had grief with the pump, sucking air, sent the Walbro kit back and am...
Forum: Gas Engines
11-09-2022, 01:12 AM
Replies: 303
Views: 54,615
Posted By partshunt

Ed, I have the same engine, 50cc-7 cyl UMS with...

Ed, I have the same engine, 50cc-7 cyl UMS with UMS carb. Poor instruction book, I did not know the plug wires have to go on with a hard snap to make them seat, otherwise they misfire, Also, I cannot...
Forum: Gas Engines
10-28-2022, 10:21 AM
Replies: 303
Views: 54,615
Posted By partshunt

Got a couple of questions that I asked the...

Got a couple of questions that I asked the supplier but no reply. Was asking what is the spark plug gap for the UMS 50cc- 7Cyl.??? Also, using a remote temp hand held sensor, what is the temperature...
Forum: Gas Engines
10-15-2022, 04:20 PM
Replies: 303
Views: 54,615
Posted By partshunt

Hello Timbers, You asked why I could see the...

Hello Timbers, You asked why I could see the spark, well only those arcing near the slott at the end. The slot is about 3/8 to 1/2 inches and those plugs arcing can seen. Others may arc hidden from...
Forum: Gas Engines
10-14-2022, 10:24 PM
Replies: 303
Views: 54,615
Posted By partshunt

Timbers, it is a 50cc 7 cylinder. Yes, that is...

Timbers, it is a 50cc 7 cylinder. Yes, that is the first thing I did, no difference. I cleaned the plugs and reinstalled them. I see air bubbles in the fuel line originating at the pump. I will deal...
Forum: Gas Engines
10-14-2022, 12:44 PM
Replies: 303
Views: 54,615
Posted By partshunt

UMS 7 cyl radial misfiring.

I have a new UMS 7 cylinder radial, ran good for half an hour then it became erratic, could not keep it running. Stalls on acceleration and found it misfiring. Discovered two cylinders with leaking...
Forum: Gas Engines
09-25-2022, 11:50 PM
Replies: 303
Views: 54,615
Posted By partshunt

Hyjinx, you say in your post you are building a...

Hyjinx, you say in your post you are building a custom T-28. Did you get the plans from a supplier or did you draw up your own plans?. I ask because I like the T28 and flew one of Dave Platts old...
Forum: Gas Engines
09-03-2022, 02:31 PM
Replies: 303
Views: 54,615
Posted By partshunt

Anybody have experience with Evolution Oil? UMS...

Anybody have experience with Evolution Oil? UMS is supposed to previously be an Evolution radial and this oil is for those engines, it must be ok for UMS I would think. Anybody have bad experiences...
Forum: Gas Engines
09-02-2022, 07:52 PM
Replies: 303
Views: 54,615
Posted By partshunt

Hi there; If you recall a while back I asked...

Hi there; If you recall a while back I asked about Minnie Motors. I would like to say, I finally received the UMS 50-7 cyl. I am getting ready to run it and they say use two stroke oil. I have new...
Forum: Gas Engines
07-03-2022, 12:30 PM
Replies: 303
Views: 54,615
Posted By partshunt

I guess it will rectify itself eventually. Thank...

I guess it will rectify itself eventually. Thank you for the good wishes and Maxam, thanks, it is good to know some people get lucky that the 7-35 was in stock. Mine was back ordered and I understand...
Forum: Gas Engines
07-03-2022, 12:45 AM
Replies: 303
Views: 54,615
Posted By partshunt

Well, I can accept some of the slow reasons but...

Well, I can accept some of the slow reasons but it is going far enough for this kid. Two months is too long to order an item. I sent the money in British Lbs as he wanted. He has the loot. When he...
Forum: Gas Engines
07-02-2022, 11:00 AM
Replies: 303
Views: 54,615
Posted By partshunt

Has anyone purchased a UMS Radial from Minnie...

Has anyone purchased a UMS Radial from Minnie Morris Engines in the UK? I have ordered one two months ago, I am still waiting???
Forum: Gas Engines
06-25-2022, 10:07 AM
Replies: 303
Views: 54,615
Posted By partshunt

Karolh, which size is your seven cylinder. I ask...

Karolh, which size is your seven cylinder. I ask because on the 7 cylinder 50cc , comes with UMS carb, or you can get the Walbro carb. Is yours seven cylinder bigger with the Walbro carb, gasoline...
Forum: Gas Engines
05-19-2022, 08:35 PM
Replies: 303
Views: 54,615
Posted By partshunt

What is the wingspan of the Stearman, also the...

What is the wingspan of the Stearman, also the projected weight for that model, UMS 260 Radial is big motor.
Forum: Gas Engines
05-14-2022, 07:41 PM
Replies: 303
Views: 54,615
Posted By partshunt

thank you for that information. Mine will come...

thank you for that information. Mine will come with the UMS carb, not the Walbro but it is an option The 50cc 7 cyl the UMS carb is standard , optional is the Walbro as you probably know. . ......
Forum: Gas Engines
05-14-2022, 12:37 AM
Replies: 303
Views: 54,615
Posted By partshunt

This UMS forum is what I have been looking for. I...

This UMS forum is what I have been looking for. I just bought a 50cc, 7cylinder ums on gasoline. Does anyone have experience with the 50cc? It is not supplied with the Walbro carb, it has the UMS...
Showing results 1 to 19 of 19


 
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