Notices
MVVS Support Get support from 3 qualified MVVS Forum Hosts. Dar Zeelon, representative from Israel. David Moen, representative from Canada. Pe Reivers, representative from Netherlands.

MVVS 58 problems

Old 11-28-2006, 03:26 PM
  #1  
leo3d
Junior Member
Thread Starter
 
Join Date: Oct 2006
Location: Rivadavia, ARGENTINA
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default MVVS 58 problems

The engine is brand new, I've only tested one day but I've found this problems:

1- The engine won't start, when I put choke on fuel flow out from carb but there is no fuel going to the spark.
2- When I tested the spark with the engine's chassis I realized that there where only one spark. But there are two magnets on the engine crank. What's happening? Is it normal???
3- When the engine idles at 2500 rpm the engine stopped. It's happening two times. Is it a spark plug problem??? or may be the electronic ignition system???
4- When the engine is hot it doesn't start. Why???

I'll put this message in my original language if there are any doubts on the setting.

el problema es el siguiente
1┬║ el motor le cuesta mucho arrancar, si lo sebo cdo habro el sebador sale combustible pero en la buj├*a no parese llegarle tanto combustible
2┬║ cdo probe la chispa, en el sigue├▒al hay 2 iman para el encendido, ┬┐Es normal que solo genere la chispa en 1 solo de los imanes?
3┬║ con un ralenti alto en 2 oportunidades se paro el motor (2500rpm aprox), es problema de buj├*a o de encendido?
4┬║ el motor en caliente no arranca, por que?
Old 11-28-2006, 06:46 PM
  #2  
pe reivers
Senior Member
 
Join Date: Jan 2002
Location: Arcen, , NETHERLANDS
Posts: 6,571
Likes: 0
Received 2 Likes on 2 Posts
Default RE: MVVS 58 problems

This seems a carb setup problem (lean idle, leak in pulse lines or fuel lines, or no pumping). Did you connect the lines well? (photo's please)
The top magnet fires the ignition, the second magnet does not fire, but resets the ignition ready for the next spark.
Is the battery Voltage you use OK?
ICU ignition needs 6 cells or two LiPo (pro needs 3 LiPo)
Vlach needs 4 cells, but sometimes 5 cells is better. (Vlach <must> have resistor type sparkplugs)
Old 11-29-2006, 04:54 PM
  #3  
leo3d
Junior Member
Thread Starter
 
Join Date: Oct 2006
Location: Rivadavia, ARGENTINA
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default RE: MVVS 58 problems

Well I have the 4,8 volt ignition system, and I'm using it with 4,8 V too. And the sparkplug is resistor type.
These are the pics of the fuel lines.
Attached Thumbnails Click image for larger version

Name:	Xv64062.jpg
Views:	68
Size:	56.7 KB
ID:	568895   Click image for larger version

Name:	Oj27900.jpg
Views:	68
Size:	152.3 KB
ID:	568896   Click image for larger version

Name:	Uz69658.jpg
Views:	73
Size:	73.6 KB
ID:	568897   Click image for larger version

Name:	Cv62277.jpg
Views:	69
Size:	41.2 KB
ID:	568898   Click image for larger version

Name:	Jh16428.jpg
Views:	65
Size:	7.1 KB
ID:	568899  
Old 11-29-2006, 06:30 PM
  #4  
pe reivers
Senior Member
 
Join Date: Jan 2002
Location: Arcen, , NETHERLANDS
Posts: 6,571
Likes: 0
Received 2 Likes on 2 Posts
Default RE: MVVS 58 problems

Just a few suggestions:
- rotate the pulse line elbow nipple (foto 1) straight towards the engine and make the pulse line as short as possible. Use clamps on the line ends. They may leak when the engine gets warm.
- clean the internal fuel strainer inside the carb.
- get rid of the T-charge valve in the fuel line (drawing). This may be a cause of problems if it leaks air.
- clean the carb inside very well. Do that again, and again, and again.
I like to try a replacement carb. If that makes the problem go away, the carb is at fault.
Old 11-30-2006, 06:20 AM
  #5  
BaldEagel
 
BaldEagel's Avatar
 
Join Date: Oct 2005
Location: Kent, UNITED KINGDOM
Posts: 9,669
Received 5 Likes on 5 Posts
Default RE: MVVS 58 problems

Leo3D

Do everything Pe has advised plus try the engine with a 6 volt supply i.e. 5 cells this may be all you need.

Mike
Old 07-21-2018, 06:21 PM
  #6  
Vandrezambon
 
Join Date: Jan 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default Have you solve the problem?

Hi,

I'm having the exactly same problem, did you solved it? How?

thanks

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 -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.