PV bushes

[Bozzy]

Hi, Has anyone used the Mad Biker inner billet PV bushes with the integrated bolt fixing?

Removed mine and everything is solid but wonder if above is worth the spend and just go for the thinker retainers as loads of other bits to get.... I also like the billet joint link as well.


Finding it starts costing lots when looking at all of the mods/upgrades about during a rebuild

Thanks
Bozzy

[huggy76]

Bozzy, I too have been looking at these as they seem like a good idea for a known weak point. Interested to see what others have to say.
I will also probably be looking at some mutts nutts valves but just waiting until I get my engine stripped to see that I definitely need them. 👍

[jessy03]

I have some fitted, but not used the engine, like you say potential fix for a weak spot, but saying that my current engine runs the standard bushes, been fine for the last 7-8 Years.

[muttsnuts]

I looked at making some like that, but the extra cost of doing it wasn't justified compared to just having some slightly thicker half moon plates made, the stock Yamaha ones are a tad too thin, so I had some made that are just that bit thicker and stop the bush rotating (which is what knackers them), I don't have them listed on my website as I can't be arsed with people asking me to sell 2 plates, its not worth my time, but I supply them with the valves and bushes if people ask me

[JonW]

Im in 2 minds about these... yes, they wont move and are new etc etc

.... but... the 500 has end caps with 1 bolt hole like this and they break off, leaving you with a different problem.

[jimmyg]

Did sidney82 not use some on his brothers power valve build?

[Bozzy]

Mar 27, 2024 0:15:08 GMT 1 JonW said:

Im in 2 minds about these... yes, they wont move and are new etc etc

.... but... the 500 has end caps with 1 bolt hole like this and they break off, leaving you with a different problem.

Interesting one having second thoughts now I expect the original retainers have slight flex where these are solid fixing... might be over thinking it adding another potential issue who knows... the bushes took some getting out and taking account of the mileage and years our bikes have done with original thin retainers thinking that upgrading them to the thinker retainers feels now more like a better half way house

[headcoats]

I use the orange seals and use a bit of silicone to hold them and had zero issues

[Bozzy]

Mar 27, 2024 13:36:20 GMT 1 headcoats said:

I use the orange seals and use a bit of silicone to hold them and had zero issues

I was wondering if to use a bit of clear silicone gasket sealant around the bushes when fitting... did you put some on the outer surface of the actual orange inner seal?

[headcoats]

As you push them in you will get silicone on the orange seals

[muttsnuts]

I have some slightly oversize "O" rings that go on the bush housing, this takes out any wear and makes them a proper snug fit - b*****ds to push in TBH, but makes them solid and they stay put, just use plenty of rubber grease on them when fitting

I can 4 of them for £6 + postage

[urbantangleweed]

Mar 26, 2024 20:16:06 GMT 1 huggy76 said:

I will also probably be looking at some mutts nutts valves but just waiting until I get my engine stripped to see that I definitely need them. 👍

I fitted a pair of Mutts Nuts valves in MT2's engine and they are excellent. OK, they're a bit dearer than others, but for good reason.

[urbantangleweed]

Mar 27, 2024 21:11:19 GMT 1 muttsnuts said:

I have some slightly oversize "O" rings that go on the bush housing, this takes out any wear and makes them a proper snug fit - b*****ds to push in TBH, but makes them solid and they stay put, just use plenty of rubber grease on them when fitting

I can 4 of them for £6 + postage

PM'd you Dave, I'll have a set of them to try.

[Bozzy]

+1 Dave PM'd you