Dumb question about gaskets

thxcuz
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Posts: 505

Dumb question about gaskets Jan 7, 2017 21:38:21 GMT -5 via mobile

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Post by thxcuz on Jan 7, 2017 21:38:21 GMT -5

I think my winter project will be to reinstall my 47mm bbk on my tao tao. I need gaskets. Do they have specific ones for 47mm kits or are they the same ones for 39mm top ends?

If you are wondering, or are new here, or just don't read my posts because I should know better by now, I loved it when my scoot had a kit but it leaked oil like crazy. Hopefully it was something stupid I did and I won't repeat the same mistake again.

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gsx600racer
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Posts: 3,617

Dumb question about gaskets Jan 7, 2017 22:16:15 GMT -5

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Post by gsx600racer on Jan 7, 2017 22:16:15 GMT -5

Not a 4 stroke guru, but I think if you are using the stock head you should be able to use the stock gaskets(39mm).

2001 Honda Elite,Airsal 46mm Alum, ZX trans swap,(the Mrs. ride)
2003 Kymco ZX50,72cc Polini Corsa/case matched to cyl,21mm carb,Tecngas Next-R exhaust,a little variator tuning
2005 Kymco ZX50,72cc Polini Corsa/case matched to cyl,28mm carb,PG Short exhaust,16/32 gears,a little variator tuning
2008 Keeway Flash 50,Stock. CL flip or mina project. TBD
2003 Vento Zip R3,Original Form. CL flip or mina project. TBD
2006 TGB R50X,Derestricted ?,70cc,MRP Exhaust,17.5mm Carb, Stock CVT.

pinkscoot Scootaholic! Posts: 3,432 Location: Winston-Salem, NC	Dumb question about gaskets Jan 8, 2017 1:48:29 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by pinkscoot on Jan 8, 2017 1:48:29 GMT -5 Here is a link to templates for all of the paper gaskets.
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90GTVert
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Dumb question about gaskets Jan 8, 2017 11:41:00 GMT -5 humanshield likes this

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Post by 90GTVert on Jan 8, 2017 11:41:00 GMT -5

Get a gasket kit for the 47mm cylinder. The base may be fine or you can trim it. If you use a 39mm head, you should still use a 47mm head gasket. You don't really want gaskets overlapping into the bore.

Brent
Life is better at high RPM.

humanshield Scootaholic! Posts: 2,639	Dumb question about gaskets Jan 8, 2017 14:41:06 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by humanshield on Jan 8, 2017 14:41:06 GMT -5 What Brent said. The stock piston is 39mm and the 47mm BBK piston is ..well.....47mm You don't want a haid gaskeet smaller than the pistun.
	Last Edit: Jan 8, 2017 15:32:37 GMT -5 by humanshield 50cc QMB139's with BBK's - SOLD 150cc Scoot I've forgotten everything I once knew about scooters. Can you help me?