Author Topic: Gasket sealers  (Read 283 times)

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  • Yama-Cheese
  • Posts: 4
Gasket sealers
« on: June 02, 2018, 07:50:08 PM »
Just got my IT400D a couple weeks ago and about to go through it thoroughly. Immediate needs are crank seals, fork seals and carb clean. I haven't been able to acquire a shop manual yet.

I searched the forum for gasket sealers and didn't get a specific hit. I haven't done a teardown in quite a few years and was wondering what the latest is on gasket sealers. Do I need anything on the wet side crankcase cover? I have acquired an OEM gasket, so just clean the surfaces and no sealer? How about the head gasket? Copper spray, or nothing?

As an aside, what wt. fork oil would be best for a stock set up that will be used for mid-to-rough trail usage?

I'm new to the forum, looks like a good one. As always, appreciate the help.

Offline Hillwilly175

  • Yama-Pupil
  • *
  • Posts: 28
Re: Gasket sealers
« Reply #1 on: June 03, 2018, 03:41:54 AM »
I did a search for 'Yamaha motorcycle shop manuals' to see if they are out there and recommend something but most of the sites make you pay to download. There is a carlsalter dot com and he is trying to give the downloads for free as long as possible. I didnt have time to try one but probably any models info would apply. Seems like gasket sealer is not covered usually though for some reason??

We want the best!! Or none to save the gasket if it is OK!

Member 4V5 on here would know.

I always like Permatex 2 the flexible one for everything (auto thermostats etc). If you get the new Versachem brand you will save a couple bucks too.

Offline Cooky375

  • Yama-Hero
  • ****
  • Posts: 385
Re: Gasket sealers
« Reply #2 on: June 03, 2018, 10:50:15 AM »
I've found OEM gaskets are great quality and don't need any help to seal. As long as both sealing surfaces are clean and have no dings or gauges out of them.

15wt oil seems to be good for the old forks, you can always look up racetech and see what they recommend for your bike and rider combo.


Offline T.RexRacing

  • Yama-Hero
  • ****
  • Posts: 365
Re: Gasket sealers
« Reply #3 on: June 03, 2018, 01:19:19 PM »
The only thing I do is smear a little ThreeBond 1104 (or equivalent) at the crankcase seams to prohibit any wicking of oil. Dry gaskets clean surfaces.

Stock forks? I'd run 20 wt.
Whatever you do will be insignificant, but it is very important that you do it.
- Mahatma Gandhi