Go Back  RCU Forums > RC Airplanes > RC Warbirds and Warplanes
Reload this Page >

MOKI RADIAL Care and Maintenence

Notices
RC Warbirds and Warplanes Discuss rc warbirds and warplanes in this forum.

MOKI RADIAL Care and Maintenence

Old 02-06-2023, 07:22 AM
  #5051  
wphilb
My Feedback: (10)
 
Join Date: Jan 2003
Location: Nolensville, TN
Posts: 521
Likes: 0
Received 2 Likes on 2 Posts
Default

I sent to Mr Baker, I believe at the Florida location. I liked the communication level and the very prompt service. It was great to have a week turn around give or take a day. I got back pictures and a video of the engine running.

I have another Moki 150 that I will be sending to him after I get a bit more time on it.

Whit

Originally Posted by Edbaker
Jaketab. I am located in Florida 10 months of the year. Please email your wish list and I'll see if I can help you out. Thanks
Old 03-08-2023, 05:20 PM
  #5052  
Jaketab
My Feedback: (2)
 
Join Date: Mar 2005
Location: Charleston, WV
Posts: 554
Received 9 Likes on 9 Posts
Default

Question - Now that there is no longer a source for SEP props in the USA, what brand and source of wood props is a good match for Moki 250 and 300.
I liked the SEP props because they placed a sufficient load on the engine.
Looking for a good warbird prop for a 250cc Texan.

Thanks - J Tab
Old 03-09-2023, 03:19 AM
  #5053  
fatfreddy17
My Feedback: (43)
 
Join Date: Jul 2003
Location: Plymouth, WI
Posts: 85
Received 4 Likes on 2 Posts
Default

Solo adjustable props are made from Maple.
Old 03-09-2023, 03:30 AM
  #5054  
Edbaker
My Feedback: (44)
 
Join Date: Sep 2002
Location: Limington, ME
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
Default

CARF Models has Sep propsin stock in the US. Contact Ray Labonte
29 x 14 - S180
32 x 18 - S250
34 x 18 - S300

Old 03-21-2023, 06:55 PM
  #5055  
rcguy5
 
Join Date: Aug 2006
Location: ON, Canada
Posts: 110
Likes: 0
Received 0 Likes on 0 Posts
Default

Hey guys, just wanted to read anybody's input with a recent change I made to my moki.

I’ve got a moki 150 with about 4-5 hours of bench run time on it. I’m using rainbowtronic ignition with original cm-6 spark plugs and modified the intake tube by installing a swirl generator out of a propane torch nozzle. With that mod, well adjusted needles, dominator 50:1 and a sep 26x16 prop the engine starts easy, purrs at a 900rpm idle, transitions beautifully, peaks out at 5000rpm and runs on all cylinders with close temps between them. Can’t ask for anything more right? Well I decided to try rcexl iridium plugs I got off alibaba gapped to .4mm. I ran the engine to warm it up and then swapped the plugs to get a real world comparison. For the first minute it ran well but soon after started to hesitate on acceleration, wouldn’t get to full power and would quit when closer to idle. I tried richening the low end at that point thinking it might need a bit more fuel but that didn’t help. It was much harder to start with the iridium plugs when it quit and wouldn’t continue running after starting. I decided to put the ngk plugs back in with the low needle set back to where it was and boom, back to normal.

It’s interesting that it ran well for a minute and then not. I’m guessing once the plugs heated up is when the trouble started. I’ve read in threads that the iridium plugs might give that little bit of a hotter spark that’s needed for four stroke radials to improve on any cylinder that might misfire. I believe though that may be referring to the denso iridium plugs that used to be available. Any thoughts on my situation with rcexl iridium plugs, why they behaved that way when swapped in with no other changes?


I’m more curious than anything as I plan to keep using the cm-6 plugs from now on.

Thanks,
Mike
Old 03-29-2023, 07:53 AM
  #5056  
GeorgiaFlyer
 
Join Date: Dec 2012
Location: Atlanta, GA
Posts: 158
Received 1 Like on 1 Post
Default

Originally Posted by Jaketab
Question - Now that there is no longer a source for SEP props in the USA, what brand and source of wood props is a good match for Moki 250 and 300.
I liked the SEP props because they placed a sufficient load on the engine.
Looking for a good warbird prop for a 250cc Texan.

Thanks - J Tab
I know its not in the US but they will ship here. I bought one direct from SEP took about 5 weeks to get. MOKI RADIAL Care and Maintenence
Old 03-29-2023, 08:59 AM
  #5057  
Jaketab
My Feedback: (2)
 
Join Date: Mar 2005
Location: Charleston, WV
Posts: 554
Received 9 Likes on 9 Posts
Default

Originally Posted by GeorgiaFlyer
I know its not in the US but they will ship here. I bought one direct from SEP took about 5 weeks to get. MOKI RADIAL Care and Maintenence
Thanks. Just found out that Ray Labonte/ CARF has limited supply in stock now. Ordered a 32 x 18.

J Tab
Old 04-03-2023, 11:48 AM
  #5058  
Jaketab
My Feedback: (2)
 
Join Date: Mar 2005
Location: Charleston, WV
Posts: 554
Received 9 Likes on 9 Posts
Default

FYI. Just passing on some prop rpm data. Finally able to get outside tune up and test run my 12-year-old Moki 250 today. I recorded the rpms of 5 different props. Unfortunately, I did not have a scale to measure the thrust. The engine is still preforming very well with the original top hat ignition and running a fuel pump. The rpm data used the same carb needle settings for all 5 props.

1. Xoar Laminated 32x18: 4820-40. This prop is used on a 54lb Delro Wendall-Williams Turner. Very nice prop.
2. SEP Scale 32x18: 4530 All other props are used on a CARF AT-6 Texan. The Xoar Laminated 32x18 and the SEP Scale 32x18 are my favorite props for the Texan.
3. SEP Scale 32x19: 4230
4. SEP Scale 30x20: 4760
5. SEP Hamilton: 3940 Worst preforming prop on the Texan.

Have a Biela Carbon 32x22 and will test run at a later date. This prop will load the 250 and would be better suited for a Moki 300.
Also have a Falcon WWII 32x18, but prop is defective and waiting for a replacement.

Regards - J Tab

Old 04-07-2023, 06:18 AM
  #5059  
rcguy5
 
Join Date: Aug 2006
Location: ON, Canada
Posts: 110
Likes: 0
Received 0 Likes on 0 Posts
Default

Anyone have any experience with those plugs and similar situation?

Iím not going to use them but curious as to why they would make the engine behave like that.

Mike

Originally Posted by rcguy5
Hey guys, just wanted to read anybody's input with a recent change I made to my moki.

Iíve got a moki 150 with about 4-5 hours of bench run time on it. Iím using rainbowtronic ignition with original cm-6 spark plugs and modified the intake tube by installing a swirl generator out of a propane torch nozzle. With that mod, well adjusted needles, dominator 50:1 and a sep 26x16 prop the engine starts easy, purrs at a 900rpm idle, transitions beautifully, peaks out at 5000rpm and runs on all cylinders with close temps between them. Canít ask for anything more right? Well I decided to try rcexl iridium plugs I got off alibaba gapped to .4mm. I ran the engine to warm it up and then swapped the plugs to get a real world comparison. For the first minute it ran well but soon after started to hesitate on acceleration, wouldnít get to full power and would quit when closer to idle. I tried richening the low end at that point thinking it might need a bit more fuel but that didnít help. It was much harder to start with the iridium plugs when it quit and wouldnít continue running after starting. I decided to put the ngk plugs back in with the low needle set back to where it was and boom, back to normal.

Itís interesting that it ran well for a minute and then not. Iím guessing once the plugs heated up is when the trouble started. Iíve read in threads that the iridium plugs might give that little bit of a hotter spark thatís needed for four stroke radials to improve on any cylinder that might misfire. I believe though that may be referring to the denso iridium plugs that used to be available. Any thoughts on my situation with rcexl iridium plugs, why they behaved that way when swapped in with no other changes?


Iím more curious than anything as I plan to keep using the cm-6 plugs from now on.

Thanks,
Mike
Old 04-07-2023, 06:49 AM
  #5060  
Maxam
My Feedback: (62)
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 1,140
Received 10 Likes on 10 Posts
Default

Originally Posted by Jaketab
FYI. Just passing on some prop rpm data. Finally able to get outside tune up and test run my 12-year-old Moki 250 today. I recorded the rpms of 5 different props. Unfortunately, I did not have a scale to measure the thrust. The engine is still preforming very well with the original top hat ignition and running a fuel pump. The rpm data used the same carb needle settings for all 5 props.

1. Xoar Laminated 32x18: 4820-40. This prop is used on a 54lb Delro Wendall-Williams Turner. Very nice prop.
2. SEP Scale 32x18: 4530 All other props are used on a CARF AT-6 Texan. The Xoar Laminated 32x18 and the SEP Scale 32x18 are my favorite props for the Texan.
3. SEP Scale 32x19: 4230
4. SEP Scale 30x20: 4760
5. SEP Hamilton: 3940 Worst preforming prop on the Texan.

Have a Biela Carbon 32x22 and will test run at a later date. This prop will load the 250 and would be better suited for a Moki 300.
Also have a Falcon WWII 32x18, but prop is defective and waiting for a replacement.

Regards - J Tab
My experience with my three Moki's is that with proper care, not at high throttle most of the time, good oil and cooling they will last a long time. One of my 215's has over three hundred flights and shows no wear. In fact it keeps running better! Here is my new plane with the 257 Moki, a Messerschmitt M35



Old 04-08-2023, 04:13 AM
  #5061  
Hyjinx
 
Join Date: Dec 2015
Posts: 866
Received 26 Likes on 26 Posts
Default

Hey Tom beautiful set up.. quick unrelated question on this forum but quickly. Do you have real world thrust data for the old Evolution 7-77 ?
Old 04-08-2023, 04:40 AM
  #5062  
Maxam
My Feedback: (62)
 
Join Date: Jul 2005
Location: Indianapolis, IN
Posts: 1,140
Received 10 Likes on 10 Posts
Default

No I do not have that data but! I have found this to be helpful for all engines; Estimate Propeller Static Thrust
My experience is that trying different propellors is the way to improve performance. Some are great and others are lousy!!!
Old 04-08-2023, 06:58 AM
  #5063  
Hyjinx
 
Join Date: Dec 2015
Posts: 866
Received 26 Likes on 26 Posts
Default

Hey Tom beautiful set up, quick unrelated question on this forum but I believe you know of this question.. Do you have real world thrust data for the old Evolution 7-77 running nitro? I tried to sell mine and couldn't get a reasonable offering. I am converting to gas radials. Gonna remount the EVO and fly it again.

Old 04-08-2023, 07:02 AM
  #5064  
Hyjinx
 
Join Date: Dec 2015
Posts: 866
Received 26 Likes on 26 Posts
Default

[QUOTE=Hyjinx;12768403
Thanks Tom. Sorry for the double posting on the same question on the wrong forum..
Apologies to all Moki enthusiasts. Of which I am also.
Old 04-09-2023, 05:16 AM
  #5065  
ReneAlv
My Feedback: (5)
 
Join Date: May 2002
Location: Wesley Chapel, FL
Posts: 73
Received 2 Likes on 2 Posts
Default

Another satisfy customer of the new Moki Service center: MOKI RADIAL SERVICE USA LLC
Jim Baker
email mokiradialserviceusa@gmail.com
Website mokiradialserviceusa.com
207-318-3524

Lucky for me I am only one hour away, so I deliver the engine (Moki 180 radial) to Jim Baker and withing one day I got an email from Jim explaining the result of his findings, with photos, excellent communication and advice on how to proceed. Within one week I have now my engine back on my Yak 54. Rene
The following users liked this post:
GeorgiaFlyer (04-11-2023)
Old 04-10-2023, 08:34 AM
  #5066  
Hyjinx
 
Join Date: Dec 2015
Posts: 866
Received 26 Likes on 26 Posts
Default

Originally Posted by ReneAlv
Another satisfy customer of the new Moki Service center: MOKI RADIAL SERVICE USA LLC
Jim Baker
email mokiradialserviceusa@gmail.com
Website mokiradialserviceusa.com
207-318-3524

Lucky for me I am only one hour away, so I deliver the engine (Moki 180 radial) to Jim Baker and withing one day I got an email from Jim explaining the result of his findings, with photos, excellent communication and advice on how to proceed. Within one week I have now my engine back on my Yak 54. Rene
Valuable post. Thank you
Old 05-06-2023, 08:18 PM
  #5067  
K Rohrbach
Junior Member
 
Join Date: Nov 2021
Posts: 19
Received 2 Likes on 2 Posts
Default

Originally Posted by ReneAlv
Another satisfy customer of the new Moki Service center: MOKI RADIAL SERVICE USA LLC
Jim Baker
email mokiradialserviceusa@gmail.com
Website mokiradialserviceusa.com
207-318-3524

Lucky for me I am only one hour away, so I deliver the engine (Moki 180 radial) to Jim Baker and withing one day I got an email from Jim explaining the result of his findings, with photos, excellent communication and advice on how to proceed. Within one week I have now my engine back on my Yak 54. Rene
This is awesome news as I'm a new Moki 250 owner going in the comp Corsair!!!!!!

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.