I guess i got lucky with mine. I had bought a yd100 that was screwed up, the cylinder studs were drilled very poorly, causing the piston to rub hard on the walls, had no power, etc. So i bitched about it and got a refund. I noticed mine had a zmn100 rod and and bigger wrist pin. So i thought what the hell and plugged the holes and slapped on an ms460 jug. Well it didn't work out so well so i put an ms380 piston in and everything lines up great. No base gasket tho, but all the ports clear and reassure like 1.5mm squish. I need to go buy a chain and lock abd i can't wait to see whats up. Im hoping everything will be fine, as its my first saw build. Ive had it built for like 7 months and haven't fired it up yet . Kinda wondering about tne timing with the magnet, is there anything that i should know before trying to start it? Thanks.
Sadly pop-up piston on ms660 is OEM only item it seems. Reason is it's known to snap crank shafts. Ms660 is over 16hp lol factory on bicycle build. It's why you don't see many 87ftlbs torque roughly. Tears the whole rear end apart fast. It's why you don't see many actually run very long. Or at all on a bicycle. Mine twisted a felt faker frame like pretzel
They come in the cranks. Mose cut off saw the crank to get the rods. eBay 25$ to 35$ used one! They are hard to find everyone buys them up fast. OEM good lord. $$$$ for one to murder is crazy
No conversation needed of you use the correct rod. Most look for an old Husqvarna concert saw 770 or bigger all same rods. They come on a crank factory. Cutoff saw is how most remove the crank. Fits perfectly on stock yd100 crank web and bearing. 14mm ms660 bearing fits wrist pin no mods
What type of Husqvarna saw did you get the 120mm connecting rod from? Read in the comments yoy need to buy the whole crank assembly then cut it to get the rod. Just wondering what saw the crank comes from.
I have been working on another build also! MS660 build! Problem is that i can not find the Husqvarna K760 piston rod by itself without buying the crankshaft too! What is the serial number for the Husqvarna K760 piston rod?
Ms460 jug has 50x54mm hole pattern. Chain saw file make ovals on jug to fit 50x50. And you will need 8m to 6m thread adaptors and 4 6mx15mm long allen head bolts. 12mm crisp pin.
@Build-Break-Fix the stock jug blew up and I figured why not go bigger I was told the 54 mm jug will fit without having to bore out the case just drill some holes would that be better or should I stick with the 52mm 460
@@jamess7681 well honestly go 52mm version. Yes I have a 54mm but you need to upgrade bearings to like ceramic bearings or you wont last long! 52mm already pushing the max rating of operation for size and spec of steel types. Ceramic ones are not cheap
Can you clarify at 4:00 "crank pin bearing is not stock to fit this 24mm rod hole to 16mm pin" Are you referring to the wrist pin bearing that's in between the 2 crank weights? What do I need to convert it?
Carnk webs since they are round lol but are you asking the crank webs bearing dimensions? All in mm 24 od x 15wide x 16 id needle bearing. It's a 12mm wrist pin piston end 16od 14wide 12id
what are you even asking? kinda lost me. you saying that cause of crank design for that rod? you need to buy the full crank and rod it how they are sold. most buy them off ebay just cut off saw the crank steal the rod only 35 to 40$ whole assembly. so not really sure if that is what you mean or something else?
Thank you, your explanation answers questions I didn't know to ask. Will undoubtedly save me time and money on my bike build..oh I subscribed...
Glad to help
So, if use the yd100 botton end you need machine 4mm of the cylinder base.
I guess i got lucky with mine.
I had bought a yd100 that was screwed up, the cylinder studs were drilled very poorly, causing the piston to rub hard on the walls, had no power, etc. So i bitched about it and got a refund.
I noticed mine had a zmn100 rod and and bigger wrist pin. So i thought what the hell and plugged the holes and slapped on an ms460 jug.
Well it didn't work out so well so i put an ms380 piston in and everything lines up great. No base gasket tho, but all the ports clear and reassure like 1.5mm squish.
I need to go buy a chain and lock abd i can't wait to see whats up. Im hoping everything will be fine, as its my first saw build.
Ive had it built for like 7 months and haven't fired it up yet .
Kinda wondering about tne timing with the magnet, is there anything that i should know before trying to start it? Thanks.
Where do uou get the high compression piston from Im bringing this one on a race track
Sadly pop-up piston on ms660 is OEM only item it seems. Reason is it's known to snap crank shafts. Ms660 is over 16hp lol factory on bicycle build. It's why you don't see many 87ftlbs torque roughly. Tears the whole rear end apart fast. It's why you don't see many actually run very long. Or at all on a bicycle. Mine twisted a felt faker frame like pretzel
Bro, Ive been looking for that connecting 120mm. I cant seem to locate one. Could help me out with that like where you got yours?
They come in the cranks. Mose cut off saw the crank to get the rods. eBay 25$ to 35$ used one! They are hard to find everyone buys them up fast. OEM good lord. $$$$ for one to murder is crazy
Thanks bro, I think I found one. I'll see if it's the right one. Otherwise I'm losing out on 55.00 bucks and 8.00 shipping. Haha
link for the 120mm connecting rod?
you have to buy a whole crank with one. ebay one. like 35$ whle unit cut stock crank off it what most do easiest way/.
Building a hs 660 now just need info on what rod to use where to get pop up piston and specs for conversion or if you sell piston conversion kit
No conversation needed of you use the correct rod. Most look for an old Husqvarna concert saw 770 or bigger all same rods. They come on a crank factory. Cutoff saw is how most remove the crank. Fits perfectly on stock yd100 crank web and bearing. 14mm ms660 bearing fits wrist pin no mods
Thanks for your informative videos, I appreciate it. How did you make up for the difference in the crank pin? Is the wrist pin still 12mm?
the correct con rod uses a 12mm wrist pin anyhow! otherwise you need sthil conversion pin. to 10mm for like yd100 or bushing
What type of Husqvarna saw did you get the 120mm connecting rod from? Read in the comments yoy need to buy the whole crank assembly then cut it to get the rod. Just wondering what saw the crank comes from.
760 or 790 rock saw. Ones you cut road to CV concrete with. Cranks are like 30$ on Ebay for decent used one. Cutting it in half anyhow lol
@@BuildBreakFix Oh cool thanks so much for your help love the work you do man.
Can I use a K970 Connecting Rod instead of a K660, or K670?
To be honest no idea. Only used the one. I know a k970 for sure won't. Way to long. But a k670 I have never physically seen before in person
@@BuildBreakFix so as far as you know I can only use the K660 right ?
@@BuildBreakFix so what rods should I use with a yd100 crank on a 660 build?
I have been working on another build also! MS660 build! Problem is that i can not find the Husqvarna K760 piston rod by itself without buying the crankshaft too! What is the serial number for the Husqvarna K760 piston rod?
July 13,2024!
@@KevinLunsford-je3rz you have to go on eBay find one. Use a cut off saw on the crankshaft. It's what everyone does.
Sorry about the delay I was sick for a while then took a vacation
@@BuildBreakFix Thanks bro! Hope you enjoyed your vacation after being sick?!
I have a phantom 85 will this just bolt on
Ms460 jug has 50x54mm hole pattern. Chain saw file make ovals on jug to fit 50x50. And you will need 8m to 6m thread adaptors and 4 6mx15mm long allen head bolts. 12mm crisp pin.
@Build-Break-Fix the stock jug blew up and I figured why not go bigger I was told the 54 mm jug will fit without having to bore out the case just drill some holes would that be better or should I stick with the 52mm 460
@@jamess7681 well honestly go 52mm version. Yes I have a 54mm but you need to upgrade bearings to like ceramic bearings or you wont last long! 52mm already pushing the max rating of operation for size and spec of steel types. Ceramic ones are not cheap
The crank bearings?
Is the 120mm connecting rod measured from center to center or full length of the whole part?
Sorry I missed this! Center to center
@@BuildBreakFix great thanks!
Can you clarify at 4:00 "crank pin bearing is not stock to fit this 24mm rod hole to 16mm pin"
Are you referring to the wrist pin bearing that's in between the 2 crank weights?
What do I need to convert it?
Carnk webs since they are round lol but are you asking the crank webs bearing dimensions? All in mm 24 od x 15wide x 16 id needle bearing. It's a 12mm wrist pin piston end 16od 14wide 12id
Anymore connecting rods I can get that’s 120mm that isn’t the brand you mentioned I need urgent help on that asap
what are you even asking? kinda lost me. you saying that cause of crank design for that rod? you need to buy the full crank and rod it how they are sold. most buy them off ebay just cut off saw the crank steal the rod only 35 to 40$ whole assembly. so not really sure if that is what you mean or something else?
How much one of your motors you would sell?
Not doing anymore! Shipping has become a nightmare paired with out of stock items that never arrive you pay for to make them. Just was not worth it!
Do you have an email I can reach you at? I have some parts questions and would like to pick your brain a bit if you have the time. Thanks
Rich.morgenstein@gmail.com