yamaha 175 cart built with bicycles

[crazycart]

If it fried the crank bearings the top end is probably fried also.

 

[porsche930dude]

wouldnt the cylender and piston be scored or burnt or somthing? All seems fine with that. maby ill throw on a new set of rings for good measure?

 

[crazycart]

Well if the crank bearings are toast, and the oil pump isnt working, i doubt oil got to the top end to lube the cam/valves/etc..so it may be messed up in there.

 

[jr dragster T]

After looking at a few dirtbike engine's if the oil was so low the crank bearing's didnt get any oil say bye to the top end.

 

[stevek]

Genius use of on-hand materials. Your ingenuity far exceeds the norm here! Congrats again on your build!

 

[newrider3]

Well if the crank bearings are toast, and the oil pump isnt working, i doubt oil got to the top end to lube the cam/valves/etc..so it may be messed up in there.

UHH, am I missing something? His engine sure looks like a 2 stroke to me.

 

[porsche930dude]

UHH, am I missing something? His engine sure looks like a 2 stroke to me.

were discussing a 4 wheeler engine i got its a 250 4 stroke. Im not sure what were gonna do just yet though i suppose a deep analysis of the motor is in order

 

[Graysonp18]

My brother and I are making a gokart, and we have the same pedal you are using for your clutch I think, and I was wondering how you mounted it onto whatever you mounted it to? you show how you mounted your other pedals, but not the left one.

Grayson

 

[porsche930dude]

i think its mounted basically the same as the other two. i may have welded a nut to it for a wider base. i dont have a closeup pick. ill have to check it out tomorrow and see if i remember. i see them used alot maby someone else has an easier way

 

[jr dragster T]

UHH, am I missing something? His engine sure looks like a 2 stroke to me.

Well you see it got high-jacked and got turned into talking about somone's 4 stroke engine

 

[porsche930dude]

hey its my thread i can talk about whatever i want
Anyway we got the rod bearing pressed out and its completly trashed and it scorred the crank in one little spot but we think itll be ok. so sofar we just need one crank bearing the rod bearing and an oil pump. were going for decent runner here not perfection. weve got to figure out the year before we get parts but theres no serial# on the frame. i guess we can go by the engine code were gonna call kawasaki and see what happens

 

[porsche930dude]

im finding it hard to believe the engine seized from a lack of oil since the top end looks fine. i think maby just the rod bearing failed and got seized up. the crank bearing was just butchered by the po maby they thought that was the problem. the race is a little boggered so it may have been grindy but its not hoorible and they just butchered it cus they didnt know how to get it off. that doesnt explain the busted pump though. maby they broke it disassembling it also

 

[motor_head]

just asking do you have any idea where the diff that was on it came from it looked better than comets

 

[THE HUNTER]

it seems a little late to say this, but that kart is awesome!!!
i love it!

 

[porsche930dude]

just asking do you have any idea where the diff that was on it came from it looked better than comets

I dont remember what model i got it from but i get all my diffs from old lawn tractors at the junk yard. I have one that i think would hold up better the case is solid machined aluminum rather than cast its a peerless. I should really get every one i see and sell them it seems like alot of people want them.

Anyhow. the cart is currently in the back of the shed because my crappy jb weld engine patch job came off. Im going to put bigger grippier tires in the back and at the same time fix the engine patch better and revise my shifter design because it seems to jam up alot. gotta get some other progects out of the way first :arf:

 

[ColokartDad]

Nice build, must have had quite a few bikes laying around, bet it's a kick to ride!

 

[gman]

very well done

 

[88s10Durango]

Dude that is way Cool , nice build outta junk ,I think if ya put some tires like I`m gonna use

or the tires off you $ 100 quad you`d be alot happier with your kart , Bill