suggestion. get an automotive induction type timing light and a 12 volt battery to power the light. Clamp the induction lead on your spark plug wire. Remove the plug, ground it with clamps so that it has conductivity but there is no compression, which will allow easy turnover of the saw. Attach your timing wheel, just eyeball it to top dead center. Use a power driver and socket to rotate the flywheel which generates the impulse. This should give you a crude reference point for where the spark is happening in the stroke cycle. Your wire pointer is bent over the timing wheel, just like the index marker on a automotive engine and by holding the timing strobe over the index marker it should cast a shadow on the timing wheel.Or at least the event of the flash you will be able to roughly see about where the signal to fire is happening. I suspect your timing is miles off. Could be the way the chip conversion is installed or could be the chip itself is not properly calibrated for that saw application. The after market solid state chips and even coils of some saws are very specific to a certain set of design criteria in order to work and variations in saw OEM design(specifically the exact timing) can be different which makes a one size fits all modern chip replacement a probable failure. This deal is growing brain cells Tinman, hang in there.
Yes this works I did this fitting a ms660 poly fly wheel to a ms661 then red loctited fly wheel on with no keyway,now I've got a 661 with that sweet whistle sound
I'm into big old Stihl saws Tinman, and have never replaced a set of points in one. But the condensers in those saws give up pretty easy. I start with the easy stuff first and it usually fixes it. Take care of that shoulder son. We're only born with two of them
Dang I was hoping to hear her roar, yea screwdriver is husqy orange too. Stripped and rebuilt my 266 bottom end the weekend and thanks to you it felt like I’ve done it once or twice before, everything went smooth and I learned it from your channel bud. Thank you
Because of my back problems, I am not allowed to start chainsaws, trimmers, lawnmowers, or outboard motors, and I am happy to look at someone who has both the will and the strength to outsmart two-strokes. Greetings from Croatia.
It’s actually very similar to a Sachs moped ignition. Your timing is unfortunately way off and you will love a timing light once you have one. Opens a door for tuning! Mopeds were my gateway to saws! And timing is crucial on those. Luckily bosch points ignitions are some of the best
Hey Tinman, I had one of these a later model without thumb oil pumper and it was a B to start if it didn't fire first pull. what I had to do was remove spark plug put back on lead hold plug in hole and pull over till it pops the fuel, then close both H&L jets then pull over as per normal choke if cold nonif warm, it fires up then open the L jet 11/2 turns Then move on to the H jet slowly up to that 1 1/2 turn Point, thinking back wise in hindsight type of thing maybe 1 1/2 is to far on the L jet, this was back in the 80's and it was my second saw that i brought new and I was a young fellow and lacked some knowledge on the saw, and it was still under warranty and the Dealer where I got it broke the Cam shaft thread off worse than you did and needed welding and rethreading,and cracked the Clutch Cross so after the chain always spun, they were a Yamaha Bike/ Dolmar Dealer. Hope this helps you get it going, but is a time waster when getting Firewood, and have to let it Idle if you have do other things, refuelling can be a pain though! All the best.
Nice to see you working on the Dolmar, more head scratching to do, I also get stumped, then just leave it , fix another then come back later 😂, thanks for sharing 👍
As soon as you pulled off that flywheel I immediately recognized it as a bosch. I don't have a ton of experience on saws but I've worked on a lot of mopeds from around the same vintage of this saw. I've never seen a bad ignition coil (I've also never seen one with JB weld on it either). I have, however, seen a lot of bad condensers cause similar issues. I'd say to try and find a new set of points and condenser and try it again. Your idea of removing the key and trying to see about timing sounds like a good start. Just don't hold on to that pull cord too tight. If you have a 6 month old, don't waste a second. Everyone says it goes by way too fast and it absolutely does. Mine will be 6 this week and I would give anything to go back and have her fall asleep in my arms again. Good luck
Hi Tinman, I once put a chip in a 123 like you did in this 153. I had to advance the flywheel a lot, about 30 degrees. Had to leave out the fly wheel key. Turned out the chip fired at tdc. Check with timing light. Used the mark on the fly wheel / case. Make a new mark with timinglight to compare. It will run like new. Grtz from Holland 👍
Tinman thats the Problem i told you in the comments of your last Video about that Saw. Its way off in Timing. These Ignition Modules are not working on these ignitions plug and play. Check the Ignitiontiming with a timinglight and use your degreewheel to set a new Keyway into the Flywheel. Let it fire about 20 deg before top dead center. My Dolmar 143 has that same Ignition. I built that saw with your Knowledge. I got a video on my channel running it. watch that Timing or she eats your Hand and Shoulder. thanks Budd.
I had an atv that was my uncles that wouldn’t run right. It sounded like when decried how that saw ran. I put a timing light on it and I discovered it was only firing every second power stroke. Put in a new cdi box and it fired up and ran good
I once had a very similar issue with a old pioneer and it turned out to be the spark plug. with a horizontal spark plug it had to be clocked so the electrode was open to the chamber and bang it started I just marked the plug and shimmed it with a copper washer might be worth a check.
One big lesson for me here is that just because you have spark doesn’t mean you should have a running saw. Other electrical problems or something else maybe the issue.
Hey man my cousin gave me aps9000 dolmar he had put a new coil on it. It had spark but it wouldn’t run it was way out of time i had to buy a new flywheel for a 9010 dolmar it runs good now but it was like 120 degrees out with the old flywheel. I’m glad to have it running it has very few hours on it. I have a 3120 I just rebuilt and it’s sparkless where would you buy a coil for that a high quality one of course I can get and oem but they do cost alot. Thanks I enjoy your videos and learning alot
HI TINMAN I would've check the spark plug 1ST /2 see if it had any spark I think the timing is off a timing light would be a great help that's a odd saw is there a wire shorting out or is ground wire not good enough make sure another wire isn't broke or shorting out or the timing is early or late OMG 3 13 2O23
Try pulling the flywheel key and and advance the flywheel, similar to putting a husqy coil on Dolmar 64-73-7900 series, you could go a key width advance at a time
@@tinmanssaws looking forward to it man, I’m going through my own Dolmar woes on my channel right now as well, keep up the good work man. love your videos
Tinman I have a stihl 032 av that I'm working on for someone and it's got spark , compression and fuel and it'll pop once in awhile it acts like it's out of time , put a new aftermarket coil on it and still no run , the stihl dealer told me that coil has to be oem for that saw to run
Maybe the problem is in the magnets. A "normal" flywheel has one magnet so it passes the coil one time per revolution, here we have four of them and maybe the saw is sparking four times per revolution or it can't build up enough energy because the magnets are triggering the chip four times.
With the Bosch ignition the flywheel actually has four poles (magnets) to make both components of the system work. One north pole and three south pole magnets. This creates a magnetic field that first excites the coil then the trigger module so that it can then trigger the coil (which was previously excited).
I was just watching the other videos about this saw, and was wondering when you would post a video on it. And Voila, here we go. Let's get this thing RIPPING!!! Edit: Where did you get the coil from?
I'm confused, if you no longer have the points fitted where does the ignition get it's timing reference from ? The old Bosh flywheels have a cam lobe in the centre to open the points at the right time.. Just a thought..
Why isn’t the web service blocking some comments? Plus do you do porting work for others such as myself? IE: working west coast saws. Husqvarnas 395’s and 3 each 372.echo 620pw and some others. Prices and delivery time please
Does it have an air leak my stihl had the hose on carb behind plastic tore would not fire replaced and boom. But obviously this is different mo chine but just thinking an air leak???
Impulse hose uuuggg brain was gone couldn’t remember but this probably doesn’t have that? And crazy but have you tried other spark plug I’ve had one with spark but none under compression? You’ve probably already tried I’m sure. Anyway keep plugging away
maybe you dont get good spark under compression.how is the magnetig on the flywheel.if not strong you get spark but under compresiom not.just gessing here.
OK I didn't think so. A few people were complaining about this issue one guy had to cut the adjustment slots quite a bit to get it to run with that setup.
suggestion. get an automotive induction type timing light and a 12 volt battery to power the light. Clamp the induction lead on your spark plug wire. Remove the plug, ground it with clamps so that it has conductivity but there is no compression, which will allow easy turnover of the saw. Attach your timing wheel, just eyeball it to top dead center. Use a power driver and socket to rotate the flywheel which generates the impulse. This should give you a crude reference point for where the spark is happening in the stroke cycle. Your wire pointer is bent over the timing wheel, just like the index marker on a automotive engine and by holding the timing strobe over the index marker it should cast a shadow on the timing wheel.Or at least the event of the flash you will be able to roughly see about where the signal to fire is happening. I suspect your timing is miles off. Could be the way the chip conversion is installed or could be the chip itself is not properly calibrated for that saw application. The after market solid state chips and even coils of some saws are very specific to a certain set of design criteria in order to work and variations in saw OEM design(specifically the exact timing) can be different which makes a one size fits all modern chip replacement a probable failure. This deal is growing brain cells Tinman, hang in there.
Yes this works I did this fitting a ms660 poly fly wheel to a ms661 then red loctited fly wheel on with no keyway,now I've got a 661 with that sweet whistle sound
😮
I always like to have a good head scratcher or two hanging around the shop. Keeps you humble and gets you back to the bench.
I'm into big old Stihl saws Tinman, and have never replaced a set of points in one. But the condensers in those saws give up pretty easy. I start with the easy stuff first and it usually fixes it. Take care of that shoulder son. We're only born with two of them
Dang I was hoping to hear her roar, yea screwdriver is husqy orange too.
Stripped and rebuilt my 266 bottom end the weekend and thanks to you it felt like I’ve done it once or twice before, everything went smooth and I learned it from your channel bud. Thank you
I love the question of the day idea that sounds like it's going to be really cool
Because of my back problems, I am not allowed to start chainsaws, trimmers, lawnmowers, or outboard motors, and I am happy to look at someone who has both the will and the strength to outsmart two-strokes. Greetings from Croatia.
It’s actually very similar to a Sachs moped ignition. Your timing is unfortunately way off and you will love a timing light once you have one. Opens a door for tuning!
Mopeds were my gateway to saws! And timing is crucial on those. Luckily bosch points ignitions are some of the best
some times you have to reverse the positive and negative on the module
Hey Tinman, I had one of these a later model without thumb oil pumper and it was a B to start if it didn't fire first pull. what I had to do was remove spark plug put back on lead hold plug in hole and pull over till it pops the fuel, then close both H&L jets then pull over as per normal choke if cold nonif warm, it fires up then open the L jet 11/2 turns Then move on to the H jet slowly up to that 1 1/2 turn Point, thinking back wise in hindsight type of thing maybe 1 1/2 is to far on the L jet, this was back in the 80's and it was my second saw that i brought new and I was a young fellow and lacked some knowledge on the saw, and it was still under warranty and the Dealer where I got it broke the Cam shaft thread off worse than you did and needed welding and rethreading,and cracked the Clutch Cross so after the chain always spun, they were a Yamaha Bike/ Dolmar Dealer. Hope this helps you get it going, but is a time waster when getting Firewood, and have to let it Idle if you have do other things, refuelling can be a pain though! All the best.
It’s unfortunate that saw won’t run. Would like to see the Poulan 5200 get some bench time. Thanks for sharing
Nice to see you working on the Dolmar, more head scratching to do, I also get stumped, then just leave it , fix another then come back later 😂, thanks for sharing 👍
Yep sometimes it's better to step back and tjink about it
As soon as you pulled off that flywheel I immediately recognized it as a bosch. I don't have a ton of experience on saws but I've worked on a lot of mopeds from around the same vintage of this saw. I've never seen a bad ignition coil (I've also never seen one with JB weld on it either). I have, however, seen a lot of bad condensers cause similar issues. I'd say to try and find a new set of points and condenser and try it again.
Your idea of removing the key and trying to see about timing sounds like a good start. Just don't hold on to that pull cord too tight.
If you have a 6 month old, don't waste a second. Everyone says it goes by way too fast and it absolutely does. Mine will be 6 this week and I would give anything to go back and have her fall asleep in my arms again.
Good luck
Tinman awesome video ,so honest i love that ,what a day hope storm not bad ,peace an love from scotland stu an family .
Hi Tinman, I once put a chip in a 123 like you did in this 153. I had to advance the flywheel a lot, about 30 degrees. Had to leave out the fly wheel key. Turned out the chip fired at tdc. Check with timing light. Used the mark on the fly wheel / case. Make a new mark with timinglight to compare.
It will run like new.
Grtz from Holland 👍
Tinman thats the Problem i told you in the comments of your last Video about that Saw. Its way off in Timing. These Ignition Modules are not working on these ignitions plug and play. Check the Ignitiontiming with a timinglight and use your degreewheel to set a new Keyway into the Flywheel. Let it fire about 20 deg before top dead center.
My Dolmar 143 has that same Ignition. I built that saw with your Knowledge. I got a video on my channel running it. watch that Timing or she eats your Hand and Shoulder. thanks Budd.
Tinnman brother I tried to Google how to time this thing and it sent me to your channel so the net is convinced you know
I had an atv that was my uncles that wouldn’t run right. It sounded like when decried how that saw ran. I put a timing light on it and I discovered it was only firing every second power stroke. Put in a new cdi box and it fired up and ran good
I usually use 15 degrees beware tdc for a starting point on big V8s
THAT SAWS A BEAST BUDDY ,,,HOPE ALL IS WELL WITH YOU AND THE FAMILY
I know that you will get it figured out Tinman. I really love the idea of having the question and answer sessions.
The ones that put up the hardest fight are often the ones I'm most fond of once ironed out!
I'm no saw mechanic by any means but don't get frustrated. Best thing to do is go have a cup of coffee and a sweet roll.
Hey Tinman,
I would suggest draining the gas and starting from scratch. Good luck with it!
Crank seal under fly wheel behind timing plate is prone to be bad,Easy to replace check it out ,,,,
I loved Dolmars until I hated Dolmars...
I once had a very similar issue with a old pioneer and it turned out to be the spark plug. with a horizontal spark plug it had to be clocked so the electrode was open to the chamber and bang it started I just marked the plug and shimmed it with a copper washer might be worth a check.
Love the big saw videos Tinman! Would be a really cool follow up to the 266s and 288s if you could get your hands on a 2100 or 2101
Also a064 that is whole, but only pops and backfires. Used Toruń great, but some shop in sierras messed it up
Looks warm outside 😁
One big lesson for me here is that just because you have spark doesn’t mean you should have a running saw. Other electrical problems or something else maybe the issue.
Hey man my cousin gave me aps9000 dolmar he had put a new coil on it. It had spark but it wouldn’t run it was way out of time i had to buy a new flywheel for a 9010 dolmar it runs good now but it was like 120 degrees out with the old flywheel. I’m glad to have it running it has very few hours on it. I have a 3120 I just rebuilt and it’s sparkless where would you buy a coil for that a high quality one of course I can get and oem but they do cost alot. Thanks I enjoy your videos and learning alot
HI TINMAN I would've check the spark plug 1ST /2 see if it had any spark I think the timing is off a timing light would be a great help that's a odd saw is there a wire shorting out or is ground wire not good enough make sure another wire isn't broke or shorting out or the timing is early or late OMG 3 13 2O23
I had a no or intermentant spark on a Sachs Dolmar i regaped the coil(closer to magnets)and WaLa good spark...
Hey tin man good to see u again
Hey Michael
Try pulling the flywheel key and and advance the flywheel, similar to putting a husqy coil on Dolmar 64-73-7900 series, you could go a key width advance at a time
Stay tuned thats the next step.
@@tinmanssaws looking forward to it man, I’m going through my own Dolmar woes on my channel right now as well, keep up the good work man. love your videos
Tinman I have a stihl 032 av that I'm working on for someone and it's got spark , compression and fuel and it'll pop once in awhile it acts like it's out of time , put a new aftermarket coil on it and still no run , the stihl dealer told me that coil has to be oem for that saw to run
Maybe the problem is in the magnets. A "normal" flywheel has one magnet so it passes the coil one time per revolution, here we have four of them and maybe the saw is sparking four times per revolution or it can't build up enough energy because the magnets are triggering the chip four times.
With the Bosch ignition the flywheel actually has four poles (magnets) to make both components of the system work. One north pole and three south pole magnets. This creates a magnetic field that first excites the coil then the trigger module so that it can then trigger the coil (which was previously excited).
Just got a dolmar 6400 Cutts oak butter
that coil looks like sachs moped engines having,boch coil.
allso having snowstorm here in finland now.
Too bad you couldnt put a drill starter on it. Would save your arm. Cheers
Saya suka dengan mesin itu bos.. bila di bandingkan dengan STIHL 070 saya lebih suka dolmar. Tidak terlalu bergetar saat di pakai
I was just watching the other videos about this saw, and was wondering when you would post a video on it. And Voila, here we go. Let's get this thing RIPPING!!!
Edit: Where did you get the coil from?
I'm waiting for you to hit 500k subs
Just a question but do you port saws as a business, it be cool to run one of your saws
I'm confused, if you no longer have the points fitted where does the ignition get it's timing reference from ? The old Bosh flywheels have a cam lobe in the centre to open the points at the right time.. Just a thought..
In your situation I do believe you need to replace that entire unit for that dolmar
I believe that the flywheel is not from the saw because they came with either Ducati or Bosch, I have both ignitions so which flywheel you have.
Just what if you reached out to the chainsaw guy that is retired but still has some shows on UA-cam he may have some pointers
Dammit man I thought I was sending you something cool for the channel looks like I did not send you anything but a big pain in the ass
She’s a dandy! We’re all learning a lot together on this one. Thanks for helping out his channel 👍
Buddy this is way better then a running saw. This way when I get it running the video will be there to help the next guy.
@@tinmanssaws I hope so
Why isn’t the web service blocking some comments? Plus do you do porting work for others such as myself? IE: working west coast saws. Husqvarnas 395’s and 3 each 372.echo 620pw and some others. Prices and delivery time please
Did you remove the muffler and try starting it? It could be the muffler.
Have you checked for spark with plug in it maybe coil is bad under compression
I have dolmar 133,,where to sell it,,, from malaysia
What do you think about the neotec 892 saws
Does it have an air leak my stihl had the hose on carb behind plastic tore would not fire replaced and boom. But obviously this is different mo chine but just thinking an air leak???
Impulse hose uuuggg brain was gone couldn’t remember but this probably doesn’t have that? And crazy but have you tried other spark plug I’ve had one with spark but none under compression? You’ve probably already tried I’m sure. Anyway keep plugging away
She's a big girl brother
New spark plug..
maybe you dont get good spark under compression.how is the magnetig on the flywheel.if not strong you get spark but under compresiom not.just gessing here.
Interesting saw, to bad it didn't kick... next time, you'll figure it out.. TC Mahalo Tinman 🤙🤙🤙
⚙️🚲⚙️💥👍🏻
I have a good question, do you wanna port a 3120 for me?
It out of gas
Is it possible to have the ignition 180 degrees out?
Not on this set up. It pretty much only goes in 1 way
OK I didn't think so. A few people were complaining about this issue one guy had to cut the adjustment slots quite a bit to get it to run with that setup.
the timing is 2 late 😮😮 the should be hot 🔥 spark should be hot 🔥 bright blue only OMG 😊😊 1O 23 2O23