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Yes! An Australian company is finally making a Billet head with o rings for the Yamaha 30hp 3 cyl


https://www.facebook.com/TSRPRODUCTS/posts/1811206602529725

thanks Bobby i have emailed you

Hey Bobby, I think I have had a similar experience, I feel after trying ccm sport and the cfm race they maybe are too stiff for the little 30. Maybe if I had more compression than stock it would be...

would you be able to tell me the correct torque? i used thread lock too

You know my problem may just be that I used 1200 grit. Probably not enough grit, I'll have another go with 400 then 600, if they are still out I'll try 320.

well maybe i'll give them a run, still might spend a bit more time getting them to seal, maybe less pressure with the screws.

thanks everyone for the replies

30 Yamaha 3 cyl, they are only slightly raised, probably the oil drained away overnight, the gap was tiny, but I like the reeds to seal with no light showing. Multiple/ twin petal cut, I tried them...

Hi, having trouble getting my ccm race reeds to seal. Ive lapped the reed block and oiled the reeds, they looked good last night, but today only a few of them are sealling fully. I can see light...

Don't give up yet!

Do you mind sharing what rpm and speed you are getting?

which reeds did you stay with? did they work better than stock reeds?

Good find! Currently in discussions with a friend to reshape the stock head, hopefully we can eventually go billet too

You absolute champion. I ordered them just now.

Thanks, not having a lot of luck. I can buy stock sizes, so if I mess them up I can at least buy more

[QUOTE=Tiller guy;147560]My local outboard shops don't know anything about the jets. One guy told me that my motor will never run right

I've heard that before!

Thanks fast Fred, by any chance do you know where to buy tohatsu jets - like 125 and 140 or bigger?
I'm after 125 and my friend is 140 and maybe bigger

Can't find 125's anywhere!!! Going to drill mine and see what happens

That is great the rod fits! That will be neater than mine and the roller will be better positioned.

I ran mine today, just a quick two way run, only pulled 41 mph but felt quite a bit more torquey...

Get an old factory carb and used the roller and linkages. Very happy with the result, have full throttle after a bit of fiddling and will hopefilly run it this weekend. Still need to lengthen the the...

I want to leave my original carbs intact, so have to get that part or similar from a wrecker.
It's running and reving, but it's not perfect ss I have only running it on the trailer

Just incase anyone reads this - i've fitted 40hp Tohatsu carbs, the 50hp carbs require more work and the pump doesnt line up

Ok. The fuel pump works after switching the bottom carb to the middle, the choke lines up after switching the rods that hold the choke butterflies on the bottom and middle carb. Just gotta play...

Yes premix, I think I found an easy solution, if it works I'll post it up in a day or so, fingers crossed

[QUOTE=Tiller guy;147389]What about the auto lube linkage?[/QUOTE

The one that does the throttle? I have to resize the threaded rods and they will fit. Then I gotta find a way to make them...

I have restocked the 40 tohatsu carbs, fuel pump now in the middle, the vacuum pulse hole seems to work.
I think the choke will work now I swapped around the rods that that hold the choke...

i have a worked 13p solace stainless ( cupped, thinned progressive pitch) - it was off my last tohatsu - same splines but i had to make a spacer to fit it on the yamaha, i machined the splines out of...

[QUOTE=Tiller guy;147365]Grayson, Thanks for the comparison! I have the 40hp blocks and the race reeds ready. I was expecting the reed blocks to be the same, but I was wrong. I'm still debating the...

We have two heads. One is on the wing boat already. He has has the bowl welded up and ground to shape then cc measured. Mine is at a friends now getting looked at. We will have results in the next...

Hey cool Jeff! , I'll try these now but there is always later haha. Maybe on the wing boat because he is fitting 50 carbs, and hasn't bought the new reed blocks yet.
Funny the 50 carbs I ordered...

Tonight i fitted 40hp yamaha reed blocks, they look the same but on closer inspection they have larger windows under the reeds. See picture for difference

[QUOTE=Tiller guy;147355]Did you buy the racing or sport CCR reeds? How did you open up your stops? Johnson used shims on the little 15hp motors. I thought about trying that on my 30hp.[/QUOTE
Yes...

My engine is new, have a new head to weld up for increased compression, i have 40 yamaha reed blocks and 50 tohatsu carbs ready to fit. We both fitted CCR reeds, mine have opened up stops and the...

Yep, love the tinnies. The little white one started life as an inflatable, now has a running plank and it sits just like a full size speed boat

In Australia,

Not yet, still waiting on mine in the post. My friend is in the middle of his and we have come up with two problems, the linkage and the vacuum port for the fuel pump not lining up.

For his...

Hi guys,
i'm about to fit 50 Tohatsu carbs to my 30 hp Yamaha 3 cyl 2 stroke, does anybody here please have any pictures or pointers on how they set up the linkages?
It looks pretty different to...