[Decking The Head 50cc] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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Decking The Head 50cc
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Posted by: #8trx450r

Anyone decking the heads themselves locally in their area, if so what amount are you removing, also who sells heads already decked?

Thanks, Corey

Posted by: bulldogfallon

Many say the 50 stock cylinder is pretty much the best stock cylinder available...

so it may be best to try to deck the stocker

I haven't decked ours due to local restrictions..maybe someone else can recomend an amount

Posted by: jetski_dawg

it was suggested to me and i had great results to take a peice of soldier and place it between the head and top of piston..let the piston "squish" the soldier and check the amount it flattens it with a mic or caliper.. on my 90 i had .050 and i had it shaved .020.. made a BIG differance..my compression raised to 180(right where i wanted it).. check your compression first..mine was@ 150... i had a machine shop that does alot of engine work on outboard motors do the work locally

Posted by: drr5

the stock drr 50 head has a lower deck than most of the other stock 50 bikes , so id take jet ski dawgs advice and heck the squish first before having it cut incase you have to rechamber the head as well

Posted by: #8trx450r

Thanks everyone, I will for sure "Clay" the motor before doing any cutting but was just curious if someone had already done this and there was a common amount to remove on the DRR 50.

I will do a compression test tomorrow and possibly order a new OEM DRR head to have cut later on down the road, I will keep everyone posted on what I end up having done .

Corey

Posted by: jetski_dawg

talk to cory from koolkidz.. he usually will have a HC head in stock that you can bolt right on..(not much more than OEM) i wouldnt go over 180.. i dont think the stock bolts will take it without going to a grade 8 plus your top-end could suffer

Posted by: #8trx450r

Ordered a new DRR casting today, will keep everyone posted on the info when I get after it later .

Corey