There are signs One Nation voters do not like the preference deal Pauline Hanson has struck with the West Australian Liberals.

Senator Hanson has made several visits to WA ahead of Saturday's state election and each time voters have warmly welcomed her.

But this is the first trip since she struck a deal to swap preferences with the Liberals and some of her supporters do not like it.

At Ladies Day at the York race track on Monday, WA voter Les Eather said he was considering voting for One Nation but had been put off by the deal.

Sandy Briggs and Les Eather may vote for One Nation, but Mr Eather is unhappy about the deal. ( ABC News: Eliza Borrello )

"I was going to give Pauline my primary vote and Colin Barnett my lowest vote possible, now that Pauline and Colin Barnett are sort of in the same party, I'm very undecided," he said.

"I won't vote Labor but Colin Barnett will still be getting my last vote."

Mr Eather was at the races with Sandy Briggs, who said she had not decided who she would vote for either but was leaning towards supporting One Nation.

Asked why, Ms Briggs said: "Her beliefs, what she's standing for."

Senator Hanson met voters in Perth's southern suburbs yesterday and fielded questions about the deal there.

The Young Nationals were out in force at the York Races. ( ABC News: Eliza Borrello )

She told one man unhappy about the preference deal that the party's how-to-vote cards were "only a recommendation".

Senator Hanson also made a point of trying to "clear up" the issue at a media conference.

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"I've made it quite clear I'm not here to shore up Colin Barnett or Mark McGowan as leader of the state, it will be the voters that will decide," Senator Hanson said.

Despite some voters being concerned about the deal, One Nation's vote appeared strong outside the York IGA store yesterday.

Local woman Maxine Suradi said she was leaning towards voting for Senator Hanson's party because she "sticks to her guns".

York resident Maxine Suradi says Senator Hanson "sticks to her guns". ( ABC News: Eliza Borrello )

But Mrs Suradi did not want to nominate any One Nation policies she liked:

"I won't go into them now if you don't mind."

While Joe Bird said he backed Senator Hanson's immigration policies:

"Otherwise we're going to have to sleep standing up shortly."