Post by: FrenRob on December 02, 2011, 01:14:21 AM
My name is Rob and I am new to your site. I have joined in the hope of finding more info on the above mentioned bike.
It is a 2010 Koestler built Maico 620 Super Motard and has been a bit of a lemon from day 1.
The main problem is that it " 4 strokes " when it is running and rarely comes on the "pipe".
Does anyone here have any idea what my problem may be
?Thanks in advance.
Rob
Post by: cnrcpla on December 02, 2011, 06:28:00 AM
Best of luck to you
Post by: FrenRob on December 02, 2011, 07:55:06 AM
but when I say on the pipe I mean hooking into the powerband 
Post by: factoryX on December 02, 2011, 08:36:57 AM
Post by: ford832 on December 02, 2011, 01:04:04 PM
Welcome aboard.I'm sure some of the Maico guys will be along sometime.
Post by: Coop on December 02, 2011, 01:47:46 PM
Post by: cnrcpla on December 02, 2011, 01:48:32 PM
Post by: 2T Institute on December 04, 2011, 11:19:38 AM
Post by: cnrcpla on December 04, 2011, 12:40:38 PM
Post by: FrenRob on December 05, 2011, 03:22:40 AM
Thanks for the replies.
This engine does not have a powervalve so thats one thing I don't need to worry about. The carby has been meticously cleaned and appears OK. It has a brand new complete PVL ignition installed and this certainly improved things. i don't think compression is an issue either as it just wants to throw me over the bars when I kick it over
I will be trying to fire it up over the next couple of days and I will see how I go and report back.Cheers
Rob
Post by: cnrcpla on December 05, 2011, 11:59:07 AM
good luck with the rest, and have fun riding it
Post by: SachsGS on December 10, 2011, 04:40:19 PM
Post by: cnrcpla on December 13, 2011, 01:09:39 AM
Post by: FrenRob on December 17, 2011, 07:09:52 AM
Tuesday or Wednesday will be the telling time
Post by: cnrcpla on December 17, 2011, 11:13:56 PM
Well good luck on Wednesday
Post by: Mountain Goat on December 18, 2011, 05:43:56 PM
Wearing braces? (I'm asking because a buddy just got surgery from an injury gotten while wearing worn-out braces.)
Post by: Jeram on January 09, 2012, 04:05:45 AM
knowing that maico generally re-use parts on as many models as they can to save money, perhaps the pipe is off a smaller cc model and is therefore too short... so you can never properly get "on the pipe"
take some measurements of the different segments of the pipe and post them up
Post by: twosmoke595 on January 09, 2012, 04:32:14 AM
Post by: MetalMike1982 on January 11, 2012, 11:25:43 PM
post a pic of this monster!
yes please post pics
Post by: FrenRob on February 29, 2012, 05:09:13 AM
I have been elsewhere the last few weeks.
Here are a couple of pics
How do I insert pics ?? Got it.
http://i537.photobucket.com/albums/ff335/frenchs5/SDC16185.jpg
http://i537.photobucket.com/albums/ff335/frenchs5/Maico08006.jpg
http://i537.photobucket.com/albums/ff335/frenchs5/DSCN4503.jpg
http://i537.photobucket.com/albums/ff335/frenchs5/DSCN4502.jpg
Post by: xandyx on February 29, 2012, 02:46:30 PM
how does that pull is the asfalt?
Post by: factoryX on February 29, 2012, 09:41:41 PM
Post by: FrenRob on March 01, 2012, 01:32:16 AM
watta beast!! the barel is the same size of a 10 year old kid's head! It is bigger than my 10 year olds head
how does that pull is the asfalt?
It's very quick..
Post by: cnrcpla on March 01, 2012, 01:34:28 AM
Post by: FrenRob on March 01, 2012, 01:35:05 AM
That carb bowl is trick, does it literally just pop off? It does.
Also, I know this bike already pulls some nice HP figures, but does the pipe look a bit restrictive?
I don't know, the pipe is 50mm ID at the head and is a lot bigger than it looks in the pics.
Post by: FrenRob on March 01, 2012, 01:36:16 AM
Do you know how much HP it makes?
Maico say 76 neddies and I think that is about ballpark.
Post by: cnrcpla on March 01, 2012, 01:36:56 AM
It must an arm stretcher then
Post by: FrenRob on March 01, 2012, 02:51:29 AM
Wow
It's going to take a bit of adjusting to
Post by: cnrcpla on March 01, 2012, 03:46:12 AM
Post by: FrenRob on March 03, 2012, 01:45:44 AM
Post by: TMKIWI on March 03, 2012, 04:44:51 AM
Post by: FrenRob on May 04, 2012, 11:42:34 AM
As you have seen it looks ok in the video but that is where it stops. As soon as you load it up it dies and goes and dies and so on.On friday we realised with the help of a timing light that the ignition was "walking", that is is was firing up to 15mm outside and on either side of the timing mark and so it seems that the issue is the CDI.
The bike has been sent to a workshop that is more qualified than I ever will be and I will have a clearer idea of what is going on on Tuesday.
Cheers
Rob
Post by: Bioflex on May 06, 2012, 02:18:37 PM
The sticker on the swingarm is from an Australia company, which is why I ask.
Post by: 2T Institute on May 06, 2012, 02:34:16 PM
If the main jet was clogged it would have seized already. Power valve could be a good place to start then I would check the ignition timing, by that I mean strobed with a timing light v's marks made on the flywheel graduated from mm BTDCWhich is why I said this.
It has been a while since my last post so I thought I had better do an update.
As you have seen it looks ok in the video but that is where it stops. As soon as you load it up it dies and goes and dies and so on.On friday we realised with the help of a timing light that the ignition was "walking", that is is was firing up to 15mm outside and on either side of the timing mark and so it seems that the issue is the CDI.
The bike has been sent to a workshop that is more qualified than I ever will be and I will have a clearer idea of what is going on on Tuesday.
Cheers
Rob
The 'issue' is those PVL shitter ignitions throw that away and get a proper DC/DC programmable and the world will be your oyster.
Post by: Brap on May 15, 2012, 10:30:08 AM
Here is a bit of video of it running on the stand.
Holy hell
Post by: FrenRob on June 05, 2012, 07:37:14 AM
Rob, are you in Australia?
The sticker on the swingarm is from an Australia company, which is why I ask.
Indeed I am. Northern Tasmania
Post by: FrenRob on June 05, 2012, 07:45:13 AM
The ignition problem turned out to be incorrect installation instructions from the manufacturer apparently.
Post by: SachsGS on June 05, 2012, 02:52:37 PM
Post by: FrenRob on June 06, 2012, 07:55:18 AM
Post by: Bioflex on June 25, 2012, 12:18:10 PM
There's very few Aussies on this board, yet two of them happen to own late Model Maicos, and both live in Tasmania.
I reckon there would only be a handful of late model Maicos in Australia.
What are you plans with the bike?
That thing would be a beast around Symmons, it'd hit a decent speed down the back straight.
In motard form there isn't a whole lot of places to ride that in Tassie.
Would love to check it out in person one day.
Post by: FrenRob on July 03, 2012, 08:46:10 AM
Rob, this is a crazy coincidence!
There's very few Aussies on this board, yet two of them happen to own late Model Maicos, and both live in Tasmania.
I reckon there would only be a handful of late model Maicos in Australia.
What are you plans with the bike?
That thing would be a beast around Symmons, it'd hit a decent speed down the back straight.
In motard form there isn't a whole lot of places to ride that in Tassie.
Would love to check it out in person one day.
Hi Bio,
I bought the bike because I wanted something radically different and could not be f@#ked building another motard.
And I don't like road bikes.
The plan is Symmons Plains and Baskerville amd hopefully a round of the Vic's.
Where in this tiny little state are you ??
And we should catch up.