Thank you for your cồntributions to the motorised bicycling world. Where would we be without your contributions. Stock, thats where. So again thanks!!!
Sorry.I should've stated that I'm using a Just broken in 66cc 47x40mm w/40 in and out ports.Only work was to remove casting flash from ports inside and micro bevel edges.Am going to add simple reed valves to intake and smallest expansion chamber.Running 93 pump gas and synthetic blend oil now at 25:1. 44 tooth sprocket but going to change to 50 for hills here.220lb.bike and I.Thank you again for your time.(NOT going to race,just looking at most efficient w/torque too.)
dangit.Once more into the....I'm using a 26"Mongoose Mt.bike with suspension forks.26x2"front tire well treaded,and 2.25"width rear super knobs.(It snowy here in MI>now.)Will be changing to Touring 2.25 frt &rear come summer.Using boost bottle until reed valve comes.A sprocket gear for idler pulley.Rubber mounted engine,and tank.Allot of silicon in clutch cover to cut noise.
Why did you not just offer 1 head and a range of head gasket spacers ?? What is the HP of an 80 CC engine "Full House" ?? and do you have a break-down of the HP of each hop-up part ??
What cc is oe approximately? what do you recommend? I bored/ground out the intake neck and exhaust pipe and their gaskets to match. stock head slant and non-slant. 80cc (67cc) skyhawk grubee. Stock carb. Stock gutted pipe. Nology coil & Jaguar cdi conventional neg ground. Wish to use pump 92/93 octane. Rider weight 182lbs. Tour gear 20-35lbs. Bike 47lbs. Extended (meaning hrs) of 3/4-7/8 throttle open use. Frequent bursts of wot. 36 tooth, 35-622 (700c). ele 300-1600ft? Air temp 22-90 deg F. Humidity (I know it matters a little but who cares). Am I forgetting anything?
Okay aric. Well, the main components in your system are mainly stock. Stock carburetor is small. Stock exhaust header is small. Opening the back end of the exhaust will help flow, but this set up is still restricted. That's okay. Nothing wrong with that, but even with the porting you did, the intake and exhaust is still restricted, so your engine would be considered a mildly advanced engine, so the high compression head (5.0cc) would be the best choice in my opinion. Thanks
That's ok. That's why I add a fifth of whiskey x 4. I mean diesel fuel. When you're riding accross the continent you can only add what is available to buy, esp. Mexico. And some NF octane booster cause of its space and weight savings.
when are you going to offer a cylinder thats already ported wit the piston, ring, copper gasket and bearing????? it sure would help us without a machine shop to have the bike bling bling that your bikes have
I have a PK80 stock....I need an aluminum head to keep it cool since I'm in Texas...I put a high compression aluminum head but I'm not sure if that's the correct compression head
I'm using a stock49cc or 50cc engine , I replaced the piston and the cylinder to an 80 cc and kept the 49cc head , I was having issues with the 80cc head which would you prefer for something like this if any
Hi Fred.Thank you for all your Very informative videos and great products.I do have a question about the alloy heads.I'm thinking of boosting the output voltage of the coil into the Plasma Plug range and using one.Will the 5.5 withstand the extra heat at the plug's spark?
I don't know much about different fuels, but if you want to go that fast, you would probably want a high compression head (5.0) and use an alcohol fuel like methanol. You can even add some nitro to that. Again, I don't have any experience using those fuels. You would probably use a small sprocket, like a 28 tooth.
Hi man, i have a 50cc vespino piaggio, you think you can make one of these for me? With the minature spark plug preferably, how can i send you the measurements? You got an email? How much would it cost more less?
Hi fred i wanted to ask you, have you used thos aluminum frames with a gas tank built in many online sellers offer? Do you think it is safe for speeds over 35 mph? I want to build a high performance bike but i havent quite found a frame i feel to be strong and safe enough.
+jose jimenez I know its an old post, but I wouldn't really trust one of the frames going over 35mph. And other variables apply... double walled rims, heavy gauge spokes, tires, riders weight ect ect.
Your talking way to technical for 99.9% of people watching this they don't understand a damn thing you're saying you need to learn how to explain things in layman terms were these people or understand like a look you got to stock PK 80 motor this is the head you want to use.
Bill Pfann On the contrary I found it informative and not too technical at all, I think he shares his expertise wonderfully and am damn glad he doesn’t treat his audience like idiots as many of us are knowledgeable in small motors and enjoy upping our game.
Just purchased a 6.0cc fred head, can't wait!!
Thank you for your cồntributions to the motorised bicycling world. Where would we be without your contributions. Stock, thats where. So again thanks!!!
You voice is strikingly similar to Mark Passio you should hear this guy on youtube you must be family!
Yeah thank you Fred every little bit counts
Sorry.I should've stated that I'm using a Just broken in 66cc 47x40mm w/40 in and out ports.Only work was to remove casting flash from ports inside and micro bevel edges.Am going to add simple reed valves to intake and smallest expansion chamber.Running 93 pump gas and synthetic blend oil now at 25:1. 44 tooth sprocket but going to change to 50 for hills here.220lb.bike and I.Thank you again for your time.(NOT going to race,just looking at most efficient w/torque too.)
Hotdam freds the man
dangit.Once more into the....I'm using a 26"Mongoose Mt.bike with suspension forks.26x2"front tire well treaded,and 2.25"width rear super knobs.(It snowy here in MI>now.)Will be changing to Touring 2.25 frt &rear come summer.Using boost bottle until reed valve comes.A sprocket gear for idler pulley.Rubber mounted engine,and tank.Allot of silicon in clutch cover to cut noise.
IT would be awesome to make removable domes like in a Banshee engine.
I'm in Colombia, I would buy one, where I can buy it?
How much for the 7.0 head?
the octane you are talking about whe talkin about 100 is that the RON or MON octane
Why did you not just offer 1 head and a range of head gasket spacers ??
What is the HP of an 80 CC engine "Full House" ?? and do you have a break-down of the HP of each hop-up part ??
+TIMEtoRIDE900 proper squish clearance is key to prevent detonation along with proper tuned carb.
What cc is oe approximately? what do you recommend? I bored/ground out the intake neck and exhaust pipe and their gaskets to match. stock head slant and non-slant. 80cc (67cc) skyhawk grubee. Stock carb. Stock gutted pipe. Nology coil & Jaguar cdi conventional neg ground. Wish to use pump 92/93 octane. Rider weight 182lbs. Tour gear 20-35lbs. Bike 47lbs. Extended (meaning hrs) of 3/4-7/8 throttle open use. Frequent bursts of wot. 36 tooth, 35-622 (700c). ele 300-1600ft? Air temp 22-90 deg F. Humidity (I know it matters a little but who cares). Am I forgetting anything?
Okay aric. Well, the main components in your system are mainly stock. Stock carburetor is small. Stock exhaust header is small. Opening the back end of the exhaust will help flow, but this set up is still restricted. That's okay. Nothing wrong with that, but even with the porting you did, the intake and exhaust is still restricted, so your engine would be considered a mildly advanced engine, so the high compression head (5.0cc) would be the best choice in my opinion. Thanks
I strongly recommend non oxy-it's alot better for your engine and you get more power out of your engine
That's ok. That's why I add a fifth of whiskey x 4. I mean diesel fuel. When you're riding accross the continent you can only add what is available to buy, esp. Mexico. And some NF octane booster cause of its space and weight savings.
Good videos
when are you going to offer a cylinder thats already ported wit the piston, ring, copper gasket and bearing????? it sure would help us without a machine shop to have the bike bling bling that your bikes have
where can we order your parts
Fred you should make a zeda yd100 2 in 1 head and jug one piece that would be awesome
What is the miniature spark plug?
I have a PK80 stock....I need an aluminum head to keep it cool since I'm in Texas...I put a high compression aluminum head but I'm not sure if that's the correct compression head
Thanks
I'm using a stock49cc or 50cc engine , I replaced the piston and the cylinder to an 80 cc and kept the 49cc head , I was having issues with the 80cc head which would you prefer for something like this if any
Hi Fred.Thank you for all your Very informative videos and great products.I do have a question about the alloy heads.I'm thinking of boosting the output voltage of the coil into the Plasma Plug range and using one.Will the 5.5 withstand the extra heat at the plug's spark?
your house is near a waterfall?
Which one is the most robust on pump gas? I am talking about a daily driver.
Is it possible to balance these cranks economically or backyard shop ?
Can you make the three spark plug head were can i buy one
Wow ...... that's all I got
what set up would produce 70 mph motor and gear ratio ?
I don't know much about different fuels, but if you want to go that fast, you would probably want a high compression head (5.0) and use an alcohol fuel like methanol. You can even add some nitro to that. Again, I don't have any experience using those fuels. You would probably use a small sprocket, like a 28 tooth.
High compression head. Big Bore Piston and Race Fuel.
Bruddah...itz a chore jus listening to u..damn..!!!
Hey Fred, I need a head cover for a stock 49cc Chinese engine. Can you help me out?
Hi man, i have a 50cc vespino piaggio, you think you can make one of these for me? With the minature spark plug preferably, how can i send you the measurements? You got an email? How much would it cost more less?
Always recommend getting more volume in your head because these engines tend to detonate. 7.0cc is actually a good idea for reliability.
Hi fred i wanted to ask you, have you used thos aluminum frames with a gas tank built in many online sellers offer? Do you think it is safe for speeds over 35 mph? I want to build a high performance bike but i havent quite found a frame i feel to be strong and safe enough.
+jose jimenez I know its an old post, but I wouldn't really trust one of the frames going over 35mph. And other variables apply... double walled rims, heavy gauge spokes, tires, riders weight ect ect.
I need one fred
Your talking way to technical for 99.9% of people watching this they don't understand a damn thing you're saying you need to learn how to explain things in layman terms were these people or understand like a look you got to stock PK 80 motor this is the head you want to use.
@UCg6me09cBaOyyMO6jZwEE3A
Bill Pfann On the contrary I found it informative and not too technical at all, I think he shares his expertise wonderfully and am damn glad he doesn’t treat his audience like idiots as many of us are knowledgeable in small motors and enjoy upping our game.
o shut cry baby
Or a four spark plug head ill buy one