Who did a quad conversion??

[400exbiggun]

I have some questions for all you guys who did quad conversions...these might sound stupid, but what is counter balancing the motor? Where can i get it done?
I have a welder...well my dad and grandpa does, but is there any one on here in pa that if i bring my frame and motor too can weld me on some new mounts...for a cost of course:p

[MOUSE]

motors like the 250r had a counter balancer to minimize vibration in the frame, the regular cr250 dirtbike motor does not have a counter balancer but it has the ruber motor mounts. if you put a cr250 motor in a quad frame it would cause a lot of vibration in the frame.

i just picked up my yz426 motor to put in my frame but instead of cutting and welding my stock frame im going to see what arens does with his new frame and sell my stock frame and buy one of his.

[400exbiggun]

is this a counter balancer?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=10368&item=2424856078

could you put this in the cr250 motor??

[MOUSE]

to be honest ive never atempted it so im not sure someone else would know im sure

[Chef]

You cant counterbalance a bike motor. The cases aren't built right. Do a search, theres only about 1500 threads on this.

[wilkin250r]

You can't just add a counterbalance to a motor, it requires mounts and bearings within the case, it requires a drive off the crankshaft, not to mention the space to put it in. These aren't things you can just "add" to a motor.

[310Rduner]

Originally posted by wilkin250r
You can't just add a counterbalance to a motor, it requires mounts and bearings within the case, it requires a drive off the crankshaft, not to mention the space to put it in. These aren't things you can just "add" to a motor.

i think monkeyboy put some o thems in zomething he wass making.?? he said it is fasss:p

[Chef]

Originally posted by 310Rduner
i think monkeyboy put some o thems in zomething he wass making.?? he said it is fasss:p

Yea...and dem spreengz.:confused2

[310Rduner]

Originally posted by Chef
Yea...and dem spreengz.:confused2

ewww dem springs izz heavems.. he says he doesne get monkeybutt nemores now.

1971 chevrolet 1500 springs.. mm i wants me somes:D

[Chef]

Originally posted by 310Rduner
ewww dem springs izz heavems.. he says he doesne get monkeybutt nemores now.

1971 chevrolet 1500 springs.. mm i wants me somes:D

Yuz gots em alreedy dunt ya?:confused:

[310Rduner]

Originally posted by Chef
Yuz gots em alreedy dunt ya?:confused:

yepp.. my buddz weldeds them on fo me:D

[400exbiggun]

well i still have some questions about this whole counter balancing thing...
What do the 426 riders do?

also i was reading the issues of dirtwheels with the crf450, 600ex, and the ktm520 and non of them said anything about a motor shaking, or ratteling. And the crfmotor was used in the dirtbike also, so he did nothing to that.
the only thing that i can think of it the different frames, they used like walsh or all them good ones........WHAT ELSE DID THEY DO??

[monkeyboy]

slappnutz duz it:muscle:

[400exbiggun]

OK THANKS any1 else??

[XANDADA]

Jode @ JB Racing does a few conversions.

[400exbiggun]

how do i contact him?

[XANDADA]

Jody Bateman @ 814-922-3523

[Ralph]

4 stroke motors dont vibrate as much, mainly 2-strokes...

[mxracer111]

i know that it yz 400/426/450 DO have counterbalancers in them... .i believe the crf 450 does too

[400exbiggun]

so thats why

can some one give me a list of bikes with the balancer?

[kicken250x]

couldnt you just put weights the flywheel like you do a car tire? i believe i have heard of people doing something like that befor?:huh

[sickmojave]

Originally posted by kicken250x
couldnt you just put weights the flywheel like you do a car tire? i believe i have heard of people doing something like that befor?:huh

:huh no

[kicken250x]

Originally posted by sickmojave
:huh no

is that a no u cant or a no i dont know?

[sickmojave]

it's no I don't think it would work the same. but if you want to try it I would like to know how you could put that much weight on the flywheel and make it hold together. I wouldn't want to be anywhere near it when it's running:eek2:

[Ralph]

Originally posted by kicken250x
is that a no u cant or a no i dont know?

im pretty sure that is what the counterbalancer is,

[sickmojave]

Originally posted by Ralph
im pretty sure that is what the counterbalancer is,

are you sayin that the counterbalancer is a weight on the flywheel :confused:

counterbalancers run on there own shaft and bearings and is driven by a set of gears off of the flywheel ;)