ADVrider

Go Back   ADVrider > Bikes > Old's Cool > 2 smokers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-09-2012, 08:46 AM   #16
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222
Quote:
Originally Posted by anotherguy View Post
Or the ignition is weak. Tread lightly here.
would not surprise me - 40 year old electronic ignition... no suitable replacements available - mz-b has one, but it's 10oz. lighter, i need 10oz heavier :)
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more
stainlesscycle is offline   Reply With Quote
Old 07-10-2012, 06:33 AM   #17
AC Swank
Banned
 
AC Swank's Avatar
 
Joined: Oct 2009
Location: Orange, CA 92865
Oddometer: 9,641
Quote:
Originally Posted by stainlesscycle View Post
would not surprise me - 40 year old electronic ignition... no suitable replacements available - mz-b has one, but it's 10oz. lighter, i need 10oz heavier :)
Have you looked here? http://www.powerdynamo.biz/eng/syste...s/overview.php

Click on the Union Jack for english.
AC Swank is offline   Reply With Quote
Old 07-10-2012, 06:39 AM   #18
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222
Quote:
Originally Posted by Armchair View Post
Have you looked here? http://www.powerdynamo.biz/eng/syste...s/overview.php

Click on the Union Jack for english.
yes, that's mz-b. a fine ignition, but even less flywheel weight than what is on there now.
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more
stainlesscycle is offline   Reply With Quote
Old 07-10-2012, 06:52 AM   #19
anotherguy
Banned
 
anotherguy's Avatar
 
Joined: Jun 2009
Location: the hills
Oddometer: 6,212
have you looked at Ignitech? I've used their stuff on oddball bikes in the past. Just the CDI but that and a good coil will boost output considerably.
anotherguy is offline   Reply With Quote
Old 07-10-2012, 06:58 AM   #20
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222
i will have to check. this ignition is very strange - it's a bosch, all electronic, but it still has an external condenser... if i could figure out how it worked, it might work. the 'cdi' for it is still available, but it's 40 year old stock...and not too expensive ($90 ish) - it's what i have on there now. i haven't replaced the coil (it's a bosch 2 wire like on many mopeds)...it's available new inexpensively.. i have replaced wire, and plug end, and added an additional ground. i'd like to get flywheel remagnetized - but not sure who does it in usa..
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more
stainlesscycle is offline   Reply With Quote
Old 07-10-2012, 08:47 AM   #21
AC Swank
Banned
 
AC Swank's Avatar
 
Joined: Oct 2009
Location: Orange, CA 92865
Oddometer: 9,641
Quote:
Originally Posted by stainlesscycle View Post
yes, that's mz-b. a fine ignition, but even less flywheel weight than what is on there now.
Any way to add weight, like the stick on wheel weights or gluing some on?
AC Swank is offline   Reply With Quote
Old 07-10-2012, 11:18 AM   #22
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222


i'm sure i could fab a flywheel weight up for it. i'd wanna add almost 16-20 oz. though..
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more
stainlesscycle is offline   Reply With Quote
Old 07-10-2012, 11:38 AM   #23
AC Swank
Banned
 
AC Swank's Avatar
 
Joined: Oct 2009
Location: Orange, CA 92865
Oddometer: 9,641
Quote:
Originally Posted by stainlesscycle View Post


i'm sure i could fab a flywheel weight up for it. i'd wanna add almost 16-20 oz. though..
The face of that flywheel looks like a good place to add weight.

You could make an impression in some clay and form a mold to pour some melted lead and attach with double backed tape.
AC Swank is offline   Reply With Quote
Old 07-10-2012, 12:06 PM   #24
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222
Quote:
Originally Posted by Armchair View Post
The face of that flywheel looks like a good place to add weight.

You could make an impression in some clay and form a mold to pour some melted lead and attach with double backed tape.
dunno if i'd trust double backed tape at 10k rpm....
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more
stainlesscycle is offline   Reply With Quote
Old 07-10-2012, 03:11 PM   #25
AC Swank
Banned
 
AC Swank's Avatar
 
Joined: Oct 2009
Location: Orange, CA 92865
Oddometer: 9,641
Quote:
Originally Posted by stainlesscycle View Post
dunno if i'd trust double backed tape at 10k rpm....
Epoxy or some super type glue? The magnets are glued in place and they don't come flying out do they?

Have you seen this? http://www.steahlyoffroad.com/instructions-downloads

AC Swank screwed with this post 07-10-2012 at 03:19 PM
AC Swank is offline   Reply With Quote
Old 07-10-2012, 03:44 PM   #26
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222
Quote:
Originally Posted by Armchair View Post
yes, i have several of their weights.



as for the glued in magnets,they are internal to the rotor, so centrifugal force is not working against them like the external flywheel weight...

either way, i'm slowly replacing bits of this stock ignition to see if that's the issue. spark has always appeared fine
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more

stainlesscycle screwed with this post 07-10-2012 at 03:49 PM
stainlesscycle is offline   Reply With Quote
Old 07-10-2012, 07:07 PM   #27
AC Swank
Banned
 
AC Swank's Avatar
 
Joined: Oct 2009
Location: Orange, CA 92865
Oddometer: 9,641
Quote:
Originally Posted by stainlesscycle View Post
yes, i have several of their weights.



as for the glued in magnets,they are internal to the rotor, so centrifugal force is not working against them like the external flywheel weight...

either way, i'm slowly replacing bits of this stock ignition to see if that's the issue. spark has always appeared fine
I wish I was closer, I'd love to see what you are doing first hand.
AC Swank is offline   Reply With Quote
Old 11-11-2012, 04:36 PM   #28
V-rider
Gnarly Adventurer
 
Joined: Jul 2009
Location: Southeast Michigan
Oddometer: 161
I know that this is an old thread...

Quote:
Originally Posted by stainlesscycle View Post
getting conflicting ideas about what's going on in this motor.

2 sets of pics, 1st set of pics is br9eix run for about 1.5 hours. 2nd set is br8eg run for 5 minutes just putting around to get some color on it. both are identical jetting, ambient temperature/elevation. on the first set of pics, the float level was bit low. also, timing was more retarded (just 1 degree less advance).


i'm thinking the first plug (which still ran fine) was a bit too cold, and a little rich. i'm assuming the carbon deposits all over is just due to plug too cold. there are no seal leaks.

2nd set of pics still a little rch somewhere, maybe hot enough of a plug now to burn deposits off.

1st plug.







2nd plug





...but I thought I would just comment since I work for the company (NGK) that makes the plugs you are using.

Those deposits are not a heat range problem. Looks like too much oil. Are you sure you didn't have a bad crank seal on the wet (tranny oil) side?

The heat rating only affects the temperature of the center electrode ceramic - not the side electrode. There are heavy oil carbon deposits all over the firing end of that plug. It's not a spark plug or heat range problem.

I see that you mentioned that the spark seems fine. It's hard to tell without actually measuring the voltage required to jump the gap. If by chance you had a really weak spark then it could affect the combustion - but it's kind of rare to have enough spark to light the mixture but not do it well enough that it would create those heavy deposits (Hopefully that sentence makes sense).

I would guess that you will still have those heavy deposits even if your ignition system was in tip-top shape. The spark itself will not clean off that kind of crud. The spark intensity and the heat range are completely separate things and do not affect each other at all. (Auto manufacturers have tried and found that there is no measurable correlation.) A "hotter" spark does not heat the end of the spark plug. In conventional ignition systems, a "hotter" spark only occurs when you increase the voltage required to jump the gap. For example, widening the gap will bring the voltage level up because it takes more voltage to jump the gap. But the temperature of the center electrode ceramic will not change.

That being said, there are ways to help prevent fouling by running the spark over the edge of the ceramic, as on a semi-surface discharge spark plug. But that will not really help your problem.

If you ever see this post I would like to find out what you did to fix it.
V-rider is offline   Reply With Quote
Old 11-12-2012, 02:22 AM   #29
Twin-shocker
Beastly Adventurer
 
Joined: Jan 2012
Oddometer: 1,673
The first plug looks like transmission oil being sucked into the motor, through drive side crank seal or possibly damaged crankcase gasket.

All CDI based ignitions suffer from reduced spark intensity over the years. This is due to the capacitor degrading, which results in less power going to the HT coil when the system is triggered.

On almost all AC systems with an external CDI unit, its possible to replace them with a cheap pit-bike part costing less than $20.

Finally its very difficult to get accurate plug colour readings when modern fuels are being used in 2T motors, but using a specific race oil such as Castrol XR77 developed to help give accurate readings, will make plug readings much less a matter of pinning the tail on the donkey as it were.
Twin-shocker is offline   Reply With Quote
Old 11-13-2012, 03:14 AM   #30
stainlesscycle OP
Beastly Adventurer
 
stainlesscycle's Avatar
 
Joined: Jun 2008
Location: morgantown, wv
Oddometer: 2,222
it was an ignition issue.
__________________
current bikes
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more
stainlesscycle is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

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 On

Forum Jump


Times are GMT -7.   It's 04:07 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014