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Doctorot replied to the topic Connecting rod differences in the forum Your Lonesome and you 3 years, 9 months ago
Not a problem area for a stock engine, but for the brave souls going for bigger power its a small difference that might prevent the rod from creating additional crankcase breathing.
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Doctorot started the topic Connecting rod differences in the forum Your Lonesome and you 3 years, 9 months ago
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Doctorot replied to the topic Oil Cooler adaptation in the forum Your Lonesome and you 3 years, 10 months ago
interesting, so its a secondary pump system just for the cooler. Very tidy bike as well. I see you have it badged as a 865, what pistons are you running? other engine mods? I’m in the middle of a big bore build myself. Nice work. thanks for sharing.
-vic
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Doctorot replied to the topic Oil Cooler adaptation in the forum Your Lonesome and you 3 years, 10 months ago
Hi Chris. I’m interested in your oil pump setup, are you bypassing the filter? Can you elaborate or show some photos? The last engine I built I had a miss-shift and violent over rev resulting in oil pump cavitation and ended up with rod knock shortly after. I have been considering running a stand-alone electric oil pump to avoid this in the future.
-Vic
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Doctorot started the topic Oil Cooler adaptation in the forum Your Lonesome and you 4 years ago
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Doctorot replied to the topic Lonesome no more in the forum Projects and Progress 4 years ago
thanks fellas.
-Gizburn, its a custom ignition cover I designed and cast myself.if you want to see my complete documented build you can find it here> https://kzrider.com/forum/11-projects/598240-saving-a-1980-750-twin?start=0
the casting process starts on page 22
Here are some pics from my ongoing 906cc engine build with custom JE pistons and…[Read more]
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Doctorot replied to the topic One time chance for big bore kit for KZ750 twin – 906cc pistons and sleeves in the forum The Trading Post 4 years, 3 months ago
Hey Michael, I sent you an email and never heard back. Maybe it went in your spam?
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Doctorot started the topic One time chance for big bore kit for KZ750 twin – 906cc pistons and sleeves in the forum The Trading Post 4 years, 4 months ago
I am having custom JE pistons made to <b>86mm bore – 8mm over stock</b>. This will bring displacement to 906cc.
The pistons will be designed for around 9/1 compression with the stock head or, as in my case, if you deck the head you can bring compression up to around 10.5/1 for use with bigger cams. JE is also including several features on the…[Read more]
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Doctorot replied to the topic Lonesome no more in the forum Projects and Progress 4 years, 4 months ago
Hey Michael
thanks for that link, very cool build for sure. i wish google translate worked on handwritten text as it looks like there is a ton of info there. I haven’t been able to find what his static compression was, are you aware if he has written it in the notes?
thanks for sharing
-Vic
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Doctorot replied to the topic "Vienna" B1 with Upsidedown in the forum New Projects 4 years, 4 months ago
Wow, great build!
So many questions as I am in the process of doing my own 906cc engine! Sorry if it seems overwhelming but its cool to see someone else hot rodding these engines.
The “dry block” – because you are bypassing the oil jets between the cylinder and the head how do you increase oil pressure after the crankcase to the head?
Have you…[Read more]
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Doctorot started the topic Lonesome no more in the forum Projects and Progress 4 years, 4 months ago
Its been too long since I checked out this website, kinda forgot about it for no particular reason, but I’m back baby!
I thought I would share some pics of my ongoing twin project. Its got a bunch of one-off parts, most of which I made myself. In its most recent iteration, the engine was setup with custom cams, port and polish, decked head,…[Read more]
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Doctorot replied to the topic Hello from San Jose in the forum New Member Introductions 7 years, 11 months ago
Thanks for the welcome guys.
I have been in touch with Arias pistons and without sending in my exact requirements they said it would be around $160 USD per piston with a minimum order of 4, discounts for more. That is not bad at all, and I think I may be pursuing this as an option. After reading through Michael’s big bore thread I found the link…[Read more]
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