joesbanshee618 Posted February 21, 2024 Report Posted February 21, 2024 I have a 98 Yamaha banchi. I am trying to identify if I have a stroke or crank or not reason. Being is because I want to buy a set of lectron carbs for it and I want to give as much information as I can to them when I order the carbs. The engine in still in the frame and not apart. Thanks for the help. Quote
joesbanshee618 Posted February 21, 2024 Author Report Posted February 21, 2024 I have a 98 Yamaha banshee. I am trying to identify if I have a stroker crank or not?Reason being is because I want to buy a set of lectron carbs for it and I want to give as much information as I can to them when I order the carbs. The engine in still in the frame and not apart. I have rebuilt the top end and i noticed the the rods are marked with ck or ch 115 on them but I do remember for sure the rods had 115 on them and from what i could see it appears that the cases have been trenched. There are groves cut in to the cases where the rods are that i could feel and see when i had the cylinders off the cylinders appear to be stock with casting numbers on them. No spacers Thanks for the help. Quote
kawa110 Posted February 21, 2024 Report Posted February 21, 2024 Remove spark plugs. Use a pencil to measur how far piston moves up and down in cylinder. Sent from my iPhone using Tapatalk Quote
375hp banshees Posted February 21, 2024 Report Posted February 21, 2024 What piston # did you put in it? Quote
joesbanshee618 Posted February 21, 2024 Author Report Posted February 21, 2024 32 minutes ago, 375hp banshees said: What piston # did you put in it? 65mm Quote
joesbanshee618 Posted February 21, 2024 Author Report Posted February 21, 2024 1 hour ago, 375hp banshees said: Part/ piston# Just reused the pistons that were in it. And put new rings on them. Everything was in spec. I had everything checked out. I blew the base gaskets on it last year Quote
375hp banshees Posted February 22, 2024 Report Posted February 22, 2024 Should have written piston #'s down... you'll have to measure stroke now Quote
joesbanshee618 Posted February 22, 2024 Author Report Posted February 22, 2024 15 minutes ago, 375hp banshees said: Should have written piston #'s down... you'll have to measure stroke now The pistons are 65.00 mm I'm want to know the stroke. When I had the cylinders off I looked at the rods and they are marked with ck or ch 115. And I felt around on the cases where the rods stick up and noticed that it appears to have been trenched. As I stated before I'm going to buy a set of lectron carbs for it and want to give as much information as I can about my motor. Quote
375hp banshees Posted February 22, 2024 Report Posted February 22, 2024 Bore has nothing to do with stroke, pt #'s would tell you stroke too. As i stated before youll have to measure stroke now. And porting info would be more useful than stroke. Fyi Quote
SKEETER Posted February 22, 2024 Report Posted February 22, 2024 Jfc . PULL THE PLUGS, AND SHOVE SOMETHING IN THERE TO MEASURE THE TOTAL UP AND DOWN MOVEMENT OF PISTON. does someone need to write it in crayon to comprendé? 1 Quote
gusto Posted February 23, 2024 Report Posted February 23, 2024 On 2/21/2024 at 3:07 PM, joesbanshee618 said: Just reused the pistons that were in it. And put new rings on them. Everything was in spec. I had everything checked out. I blew the base gaskets on it last year Your being asked if you used 795 (stoker pistons) or 513 (stock stroke). Quote
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