R5 RH Crank Seal

[rded]

So, I finally got to the bottom of my running issues on this R5.It seemed to be smoothed out but still didn't seem 100%.
I did a leak down (I know...Should have done it before anything) but I always think, oh they won't be bad.

The RH seal was leaking air all around. I ordered one from eBay (looked to be the soonest shipping one). This seal is so large in diameter it was a bitch to install. Then I go to fit the gear and the shaft is not pushing in. The inner seal is way too small. I tried to lube but to no avail.

What source has reliable close to stock fitting seals?

[m in sc]

https://yambits.co.uk/yr5-crank-oil-seal-rh-p-14803.html


look for other parts as well as shipping isnt bad but doesn't go up with small add ons. should be in your hands in a week or less.

john at economy used to carry r5 seals but i didnt see them. you can use an rd seal if you feel like taking the center rib off.

[rded]

Phuck, I just received an order from them dammit. Ordered on Monday 7-03 and had parts in my hands on Thursday 7-05. They're  amazingly expedient. Way better than most US vendors.

I must note that I hate when sellers have the shit part with a Yamaha part# label with it. I msg the seller, we'll see what happens.

[rded]

Nice I see that the RD seals are still available form Yamaha. Whats the best way to take the rib down? Grind off, or cut?

[m in sc]

honeslty, and this is def not recommended but does work, i usually let it spin on my finger against the grinding wheel until the rib is gone, gently. then blow it off with air. however, i would recommend a steady hand with an exacto if this makes you feel uneasy. and im one of the guys that uses yamabond on new seals. 

[rded]

I think I will get the RD one. I am pretty good with my hands. I have a fresh tube of Yamabond also.
Steady hand with my die grinder should do it.

[m in sc]

id avoid a die grinder, real easy to cut a notch in it, but thats just my opinion. but, good luck w it. as a side note, i always order 2 sets of seals when i order them just incase something goes wrong on installation. got bit by that once, and now i always have a spare on hand.

[rded]

Good idea

[soonerbillz]

I ordered this kit from economycycle.com

https://www.economycycle.com/shop/yamaha-rd250350400r5ds6ds7-parts/engine-related/gasketsseals-engine/mocom-engine-oil-seal-kit-for-yamaha-r5ds7/

[m in sc]

i didnt see that. thats (one of) the ones ive ordered in the past.

[rded]

Good option, thanks

Does John send the parts quickly? I am an impatient MF

Although I may just order from my local dealer.  I also need crank seals for my AT1.

[soonerbillz]

Good option, thanks

Does John send the parts quickly? I am an impatient MF

Although I may just order from my local dealer.  I also need crank seals for my AT1.

I ordered 57 parts in bulk last Friday... they shipped it Monday it showed up Yesterday
Fast enough I'd say.

[rded]

Has anyone come across R5 crank seals that do not fit? The RH one in particular. The one I have is too large and the ID is too small for the gear to fit.

[m in sc]

never

[rded]

I haven't done a lot of crank seals so I just assumed that I would have received the correct one. The OD was close but would not just push in a bit. I now have the size of that seal 40x62x10 and will always check from now on.